- 1907-1960: Age of Global Conflict
- 2-Dimensional Momentum Problem
- 2-Dimensional Momentum Problem (Part 2)
- 2003 AIME II Problem 11.avi
- 2003 AIME II Problem 14
- 2003 AIME II Problem 7
- 2003 AIME II Problem 8
- 20th Century Capitalism and Regulation in the United States
- 30-60-90 Triangle Example Problem
- 30-60-90 Triangle Side Ratios Proof
- 30-60-90 Triangles II
- 401(k)s
- 45-45-90 Triangle Side Ratios
- 45-45-90 Triangles
- A Firm’s Marginal Product Revenue Curve
- A Look at a Seductive but Wrong Gibbs/ Spontaneity Proof
- A Universe Smaller than the Observable
- A1C Levels
- About the SAT: Content Changes to the New SAT
- About the SAT: Format Changes to the New SAT
- About the SAT: Introduction to the SAT Math Test
- About the SAT: Introduction to the SAT Reading Test
- About the SAT: Introduction to the SAT Writing & Language Test
- Absolute Inequalities 2
- Absolute Value 1
- Absolute Value and Number Lines
- Absolute Value as Distance Between Numbers
- Absolute Value Equation Example 2
- Absolute Value Equations
- Absolute Value Equations 1
- Absolute Value Equations 2
- Absolute Value Equations Example 1
- Absolute value inequalities Example 1
- Absolute Value Inequalities Example 2
- Absolute value inequalities example 3
- Absolute Value of Integers
- Abstract-ness
- Acceleration
- Acceleration Due to Gravity at the Space Station
- Acceleration for Aircraft Carrier Takeoff
- Accrual Basis of Accounting
- Accumulating Foreign Currency Reserves
- Acid Base Introduction
- Acid Base Titration
- Acquisitions with Shares
- Actual CPI-U Basket of Goods
- Actual Option Quotes
- Acute Obtuse and Right Angles
- Acute Right and Obtuse Angles
- Ad Reinhardt, Abstract Painting
- Adding 1 vs. Adding 10
- Adding 10 or 100
- Adding 5 + 3 + 6
- Adding 7 + 6
- Adding 8 + 7
- Adding and Simplifying Radicals
- Adding and Subtracting Fractions
- Adding and Subtracting Fractions, Decimals and Percentages (1)
- Adding and Subtracting Fractions, Decimals and Percentages (2)
- Adding and Subtracting Multiple Fractions with Unlike Denominators
- Adding and Subtracting Negative Numbers
- Adding and Subtracting Pieces of Fruit
- Adding and Subtracting Polynomials 1
- Adding and Subtracting Polynomials 2
- Adding and Subtracting Polynomials 3
- Adding and Subtracting Rational Expressions
- Adding and Subtracting Rational Expressions 1
- Adding and Subtracting Rational Expressions 2
- Adding and Subtracting Rational Expressions 3
- Adding and Subtracting Real Numbers
- Adding and Subtracting Real Numbers Application
- Adding by Getting to a Group of 10 First
- Adding Complex Numbers
- Adding Decimals
- Adding Decimals (Example 1)
- Adding Decimals (Example 2)
- Adding Decimals (Old)
- Adding Decimals Word Problem
- Adding Demand Curves
- Adding Different Units for Weight
- Adding Different Units of Length
- Adding Fractions (ex 1)
- Adding Fractions With Different Signs
- Adding Fractions With Like Denominators
- Adding Fractions With Unlike Denominators
- Adding Fractions with Unlike Denominators
- Adding Fractions with Unlike Denominators Word Problem
- Adding Hundreds, Tens and Ones
- Adding Integers With Different Signs
- Adding Mixed Numbers
- Adding Mixed Numbers Introduction
- Adding Mixed Numbers with Regrouping
- Adding Mixed Numbers With Unlike Denominators
- Adding Mixed Numbers Word Problem
- Adding Negative Numbers
- Adding Negative Numbers on a Number Line
- Adding Polynomials
- Adding Rational Expressions
- Adding Real Numbers Application
- Adding Real Numbers With Different Signs
- Adding Subtracting Mixed Numbers 0.5 (ex 1)
- Adding Subtracting Mixed Numbers 0.5 (ex 2)
- Adding Subtracting Mixed Numbers 1 (ex 1)
- Adding Subtracting Mixed Numbers 1 (ex 2)
- Adding Tenths and Hundredths as Fractions
- Adding Three-Digit Numbers
- Adding Three-Digit Numbers with Regrouping
- Adding Three-Digit Numbers Without Regrouping
- Adding to 10
- Adding Two-Digit Numbers Without Regrouping (Example 1)
- Adding Two-Digit Numbers Without Regrouping (Example 2)
- Adding Whole Numbers and Applications 1
- Adding Whole Numbers and Applications 2
- Adding Whole Numbers and Applications 3
- Adding Whole Numbers and Applications 4
- Adding/Subtracting Negative Numbers
- Adding: Why Carrying Works
- Addition 2
- Addition 3
- Addition 4
- Addition and Subtraction with Significant Figures
- Addition and Subtraction Within 10
- Addition and Subtraction Word Problems: Basketball Game
- Addition and Subtraction Word Problems: Exercising Gorillas and Cookies
- Addition and Subtraction Word Problems: Fence Posts for Horses
- Addition and Subtraction Word Problems: Losing Tennis Balls
- Addition and Subtraction Word Problems: Sea Monsters and Superheroes
- Addition and Subtraction Word Problems: Snow on Friday
- Addition and Subtraction Word Problems: Spinning Wheel
- Addition and Subtraction Word Problems: Spots on a Die
- Addition and Subtraction Word Problems: Starfish
- Addition and Subtraction Word Problems: Using Crayons
- Addition Elimination Method 1
- Addition Elimination Method 2
- Addition Elimination Method 3
- Addition Elimination Method 4
- Addition Rule for Probability
- Addition Using Groups of 10 and 100
- Addition with Regrouping
- Addition Word Problems Within 10
- Adequacy of the Lateral Cervical Spine X-Ray
- Advanced JS: Games & Visualizations: 3D Shapes
- Advanced JS: Games & Visualizations: Buttons
- Advanced JS: Games & Visualizations: Introduction to Games & Visualizations
- Advanced JS: Games & Visualizations: Making a Memory Game
- Advanced JS: Games & Visualizations: Making a Side Scroller: Hoppy Beaver
- Advanced JS: Games & Visualizations: Scene Management
- Advanced JS: Games & Visualizations: Transformations
- Advanced JS: Natural Simulations: Angular Movement
- Advanced JS: Natural Simulations: Forces
- Advanced JS: Natural Simulations: Introduction to Natural Simulations
- Advanced JS: Natural Simulations: Noise
- Advanced JS: Natural Simulations: Oscillations
- Advanced JS: Natural Simulations: Particle Systems
- Advanced JS: Natural Simulations: Randomness
- Advanced JS: Natural Simulations: Vectors
- Advanced ratio problems
- Age word problems 1
- Age word problems 2
- Age word problems 3
- Aggregate Demand
- Airbus A380 Take-off Distance
- Airbus A380 Take-off Time
- Alberto Giacometti, The Palace at 4 a.m.
- Albrecht Altdorfer, The Battle of Issus
- Albrecht Durer, Self-Portrait
- Albrecht Durer, The Four Apostles
- Albrecht Durer, The Large Piece of Turf
- Alexander Sarcophagus, The
- Alexej von Jawlensky, Young Girl in a Flowered Hat
- Algebra: Equation of a line
- Algebra: graphing lines 1
- Algebra: Linear Equations 4
- Algebra: Slope
- Algebra: Slope 2
- Algebra: Slope 3
- Algebra: Slope and Y-intercept intuition
- Algebra: Solving Inequalities
- Algebraic Expression Least Common Multiple
- Algebraic Expressions Word Problem (1)
- Algebraic Expressions Word Problem (2)
- Algebraic Long Division
- Algebraic Midpoint of a Segment
- Algebraic Word Problem
- Algorithms: Asymptotic Notation
- Algorithms: Binary Search
- Algorithms: Breadth-First Search
- Algorithms: Further Learning
- Algorithms: Graph Representation
- Algorithms: Insertion Sort
- Algorithms: Introduction to Algorithms
- Algorithms: Merge Sort
- Algorithms: Quick Sort
- Algorithms: Recursive Algorithms
- Algorithms: Selection Sort
- Algorithms: Towers of Hanoi
- Allende and Pinochet in Chile
- Allocative Efficiency and Marginal Benefit
- Altar of Augustan Peace
- Alternate Mental Subtraction Method
- Alternate Proof to Induction for Integer Sum
- Alternate Solution to Ratio Problem (HD Version)
- Alternative Minimum Tax
- Ambrogio Lorenzetti, The Allegory of Good and Bad Government
- American Call Options
- American Put Options
- American-Chinese Debt Loop
- Amortization
- Amortization and Depreciation
- Amplitude, Period, Frequency and Wavelength of Periodic Waves
- AMT Overview
- An IPO
- Analyzing a Dot Plot: Redistributing Trail Mix
- Analyzing Clusters, Gaps, Peaks and Outliers for Distributions
- Anatomy of a Muscle Cell
- Anatomy of a Neuron
- Ancient Greek Temples at Paestum
- Andrea Pozzo, Glorification of Saint Ignatius
- Andy Warhol, Cambell’s Soup Cans: Why is this Art?
- Andy Warhol, Gold Marilyn Monroe
- Angle Basics
- Angle Bisector Theorem Examples
- Angle Bisector Theorem Proof
- Angle Game (part 2)
- Angle Measure Word Problem: Apple Pie
- Angle Measurement and Circle Arcs
- Angle Word Problem: Stove Dial
- Angles (part 2)
- Angles (part 3)
- Angles at the intersection of two lines
- Angles formed between transversals and parallel lines
- Angles Formed by Parallel Lines and Transversals
- Angles of parallel lines 2
- Annibale Carracci, Crucifixion and Lamentation
- Annual Interest Varying with Debt Maturity
- Annual Percentage Rate (APR) and Effective APR
- Another Isosceles Example Problem
- Another Mass Composition Problem
- Another Percent Word Problem
- Another Quantitative Easing Video
- Another Stoichiometry Example in a Solution
- Another Take on the Rate Problem
- Anthony Van Dyck, Charles I at the Hunt
- Antoni Gaudi, Church of the Sagrada Familia
- Ape Clarification
- Appealing a Financial Aid Package
- Application of Addition of Real Numbers
- Application of Similar Triangles
- Application of the Pythagorean Theorem in a Three-Dimensional Shape
- Application Problem With Graph
- Application Problem With Quadratic Formula
- Application Problems Involving Units of Weight
- Application Problems With Equation in One Variable
- Applications Problem Factoring Quadratics
- Applying for Financial Aid when Facing Immigration Challenges
- Applying Logarithms
- Applying Logarithms 2
- Applying Quadratic Functions 1
- Applying Quadratic Functions 2
- Applying Quadratic Functions 3
- Applying Radical Equations 1
- Applying Radical Equations 2
- Applying Radical Equations 3
- Applying Rational Equations 1
- Applying Rational Equations 2
- Applying Rational Equations 3
- Applying the Quadratic Formula
- Applying to the Right Number of Colleges
- Appomattox Court House and Lincoln’s Assassination
- Approximating Square Roots
- Approximating with Powers of 10
- Apsidal Precession (Perihelion Precession) and Milankovitch Cycles
- Arbitrage Basics
- Arbitraging Futures Contract
- Arbitraging Futures Contracts II
- Arch of Constantine
- Are Hedge Funds Bad?
- Are Southern Hemisphere Seasons More Severe?
- Area and Perimeter
- Area and Perimeter of Composite Figures
- Area and Perimeter Word Problem: Comparing Areas of Rectangles
- Area and Perimeter Word Problem: Table Dimensions
- Area and Perimeter Word Problem: Width of a Dog Pen
- Area Models to Visualize Division Using Place Value
- Area of a Circle
- Area of a circle
- Area of a Kite
- Area of a Parallelogram
- Area of a Parallelogram
- Area of a Parallelogram on the Coordinate Plane
- Area of a Regular Hexagon
- Area of a Shaded Region
- Area of a Trapezoid
- Area of a Trapezoid
- Area of a Triangle
- Area of an Equilateral Triangle
- Area of Diagonal Generated Triangles of Rectangle are Equal
- Area of Inscribed Equilateral Triangle (some basic trig used)
- Area of Koch Snowflake (part 1) - Advanced
- Area of Koch Snowflake (part 2) - Advanced
- Area of Rectangles and the Distributive Property
- Arithmetic Properties with Negative Numbers
- Art & Context
- Art Historical Analysis: A Basic Introduction Using Goya’s Third of May, 1808
- Artemisia Gentileschi, Judith and Holofernes (Judith Slaying Holofernes)
- Artemision Zeus or Poseidon
- Assessing Alignment of the Lateral Cervical (neck) X-Ray
- Associative Law of Addition
- Associative Law of Multiplication
- Associative Property for Multiplication
- Athenian Agora and the Experiment in Democracy, The
- ATP: Adenosine Triphosphate
- Auguste Rodin, The Gates of Hell
- Average Velocity for Constant Acceleration
- Averages
- Avoiding Common Admissions Essay Mistakes
- Axis of Symmetry
- Aztec Feathered Headdress
- Aztec Sun Stone (Calendar Stone)
- B Lymphocytes (B Cells)
- Back of Envelope Office Space Conundrum
- Backwardation
- Backwardation Bullish or Bearish
- Bacteria
- Bacterial Meningitis
- Bailout 1: Liquidity vs. Solvency
- Bailout 10: Moral Hazard
- Bailout 11: Why These CDOs Could be Worth Nothing
- Bailout 12: Lone Star Transaction
- Bailout 13: Does the Bailout Have a Chance of Working?
- Bailout 14: Possible Solution
- Bailout 15: More on the Solution
- Bailout 2: Book Value
- Bailout 3: Book Value vs. Market Value
- Bailout 4: Mark-to-Model vs. Mark-to-Market
- Bailout 5: Paying Off the Debt
- Bailout 6: Getting an Equity Infusion
- Bailout 7: Bank Goes Into Bankruptcy
- Bailout 8: Systemic Risk
- Bailout 9: Paulson’s Plan
- Balance of Payments - Capital Account
- Balance of Payments - Current Account
- Balance Sheet and Income Statement Relationship
- Balancing Chemical Equations
- Banking 1
- Banking 10: Introduction to Leverage
- Banking 11: A Reserve Bank
- Banking 12: Treasuries: Government Debt
- Banking 13: Open Market Operations
- Banking 14: Fed Funds Rate
- Banking 15: More on the Fed Funds Rate
- Banking 16: Why Target Rates vs. Money Supply
- Banking 17: What Happened to the Gold?
- Banking 18: Big Picture Discussion
- Banking 2: A Bank’s Income Statement
- Banking 3: Fractional Reserve Banking
- Banking 4: Multiplier Effect and the Money Supply
- Banking 5: Introduction to Bank Notes
- Banking 6: Bank Notes and Checks
- Banking 7: Giving Out Loans Without Giving Out Gold
- Banking 8: Reserve Ratios
- Banking 9: More on Reserve Ratios
- Barnett Newman, Onement I
- Barnett Newman, Vir Heroicus Sublimis
- Base Ten Numbers and Place Value
- Basic Addition
- Basic Capital Structure Differences
- Basic Cash Flow Statement
- Basic Complex Analysis
- Basic Leveraged Buyout (LBO)
- Basic Linear Function
- Basic Multiplication
- Basic Probability
- Basic Rate Problem
- Basic Shapes
- Basic Shorting
- Basic Subtraction
- Basic Trigonometry
- Basic Trigonometry II
- Basics of US Income Tax Return Schedule
- Basilica of Constantine, Rome
- Basilica of San Vitale, Ravenna
- Bay of Pigs Invasion
- Becoming a Red Giant
- Beginnings of Life
- Benefits and Drawbacks of College Loans
- Benford’s Law Explanation (Sequel to Mysteries of Benford’s Law)
- Benvenuto Cellini, Perseus with the Head of Medusa
- Berthe Morisot, The Mother and Sister of the Artist
- Big Bang Introduction
- Binary Numbers
- Binary, Decimals, and Hexadecimal Number Systems
- Binomial Distribution 1
- Binomial Distribution 2
- Binomial Distribution 3
- Binomial Distribution 4
- Binomial Theorem (part 1)
- Binomial Theorem (part 2)
- Binomial Theorem (part 3)
- Biodiversity Flourishes in Phanerozoic Eon
- Birth of Stars
- Birthday Probability Problem
- Black Holes
- Blood Sugar Levels
- Blue Cross and Blue Shield
- Boiling Point Elevation and Freezing Point Supression
- Bonaventura Berlinghieri, Saint Francis Altarpiece
- Bonds vs. Stocks
- Box-and-Whisker Plots
- Breakdown of Gas Prices
- Breaking Apart Three-Digit Addition Problems
- Breaking Apart Two-Digit Addition Problems
- Brief History of the Representation of the Body in Western Painting, A
- Brief History of the Representation of the Body in Western Sculpture, A
- Bronze Casting
- Bronzino & the Mannerist Portrait
- Buddha of Medicine Bhaishajyaguru (Yaoshi Fo)
- Budget Line
- Buffers and Henderson-Hasselbalch
- C-4 Photosynthesis
- Calculating Average Velocity or Speed
- Calculating Dot and Cross Products with Unit Vector Notation
- Calculating i Raised to Arbitrary Exponents
- Calculating Real Return in Last Year Dollars
- Calculating the Square Footage of a House
- Calculator for Logarithms
- Calculator for Natural Logarithms
- Calculator for Powers of 10
- Calculator for Powers of e
- Calculus Proof of Centripetal Acceleration Formula
- Call Option as Leverage
- Call Payoff Diagram
- Call Writer Payoff Diagrams
- CAM Plants
- Canceling Zeros when Dividing
- Cancer
- Cancerous Colon Tissue
- Capacitance
- Carbon 14 Dating 2
- Carbon 14 Dating
- Carnot Cycle and Carnot Engine
- Carnot Efficiency 2: Reversing the Cycle
- Carnot Efficiency 3: Proving that it is the Most Efficient
- Carry Trade Basics
- Caryatid & Ionic Column, Erechtheion
- Cash Accounting
- Caspar David Friedrich, Abbey Among Oak Trees
- Caspar David Friedrich, Monk by the Sea
- Categorize Triangles by Angle Size
- Categorize Triangles by Side Length or by Angle Size
- Categorizing Triangles Exercises (1)
- Categorizing Triangles Exercises (2)
- Cathedral of Notre Dame de Chartres (Part 1)
- Cathedral of Notre Dame de Chartres (Part 2)
- Cathedral of Notre Dame de Chartres (Part 3)
- Celebrity & Art: Leonardo da Vinci’s Mona Lisa
- Center of Mass
- Centripetal Force and Acceleration Intuition
- Cepheid Variables 1
- Cervical Spine Protection in Airway Management
- Challenging Perimeter Problem
- Challenging Similarity Problem
- Challenging Triangle Angle Problem
- Change of State Example
- Changes in Income, Population or Preferences
- Changes in Market Equilibrium
- Changing an Improper Fraction to a Mixed Number
- Chapter 11: Bankruptcy Restructuring
- Chapter 7: Bankruptcy Liquidation
- Charlemagne, Part 1: An Introduction
- Charlemagne, Part 2: The Carolingian Revival
- Charles Barry and A.W.N. Pugin, Palace of Westminster (Houses of Parliament)
- Charles Garnier, Paris Opera House
- Charles Willson Peale, Staircase Group (Portrait of Raphaelle Peale and Titian Ramsay Peale)
- Childhood Growth
- Chilling Water Problem
- China Buys US Bonds
- China Keeps Peg But Diversifies Holdings
- China Pegs to Dollar Keep Trade Imbalance
- Chinese Central Bank Buying Treasuries
- Chinese Inflation
- Choose Pounds or Ounces to Measure Weight
- Chromosomes, Chromatids, Chromatin, etc.
- Chronometric Revolution
- Cimabue, Santa Trinita Madonna, and Giotto, Ognissanti Madonna
- Circles: Radius, Diameter and Circumference
- Circuits (Part 1)
- Circuits (Part 2)
- Circuits (Part 3)
- Circuits (Part 4)
- Circular Flow of Income and Expenditures
- Circulatory System and the Heart
- Circumcenter of a Right Triangle
- Circumcenter of a Triangle
- Circumference of a Circle
- Circumference of a Circle
- Classical Orders, The
- Classifying Shapes by Lines and Angles
- Claude Monet, Cliff Walk at Pourville
- Claude Monet, Gare St. Lazare
- Claude Monet, Poplars
- Claude Monet, Rouen Cathedral Series
- Claude Monet, The Argenteuil Bridge
- Claude Monet, The Water Lilies
- Closed-End Mutual Funds
- Coatlicue
- Coin Flipping Example
- Collateralized Debt Obligation (CDO)
- Collateralized Debt Obligation Overview
- Collective Learning
- College Experience, The
- Colon Dysplasia
- Colosseum, The
- Colossus of Constantine
- Combinations
- Combining Like Terms with Distribution
- Common Denominators: 1/4 and 5/6
- Common Denominators: 3/5 and 7/2
- Common Divisibility Examples
- Common Fractions to Decimals: Halves
- Common Orthocenter and Centroid
- Communism
- Commutative Law of Addition
- Commutative Law of Multiplication
- Commutative Property for Addition
- Comparative Advantage and Absolute Advantage
- Comparative Advantage Specialization and Gains from Trade
- Comparing Absolute Values
- Comparing Absolute Values of Variables on the Number Line
- Comparing Accrual and Cash Accounting
- Comparing Areas and Perimeters of Rectangles
- Comparing Areas of Plots of Land
- Comparing Celsius and Fahrenheit Temperature Scales
- Comparing Colleges Based on Campus Activities
- Comparing Colleges Based on Diversity
- Comparing Colleges Based on Financial Aid Policies
- Comparing Colleges Based on Location, Size and Housing
- Comparing Colleges Based on Majors Offered
- Comparing Colleges Based on Special Focus or Affiliation
- Comparing Decimals
- Comparing Decimals (Example 1)
- Comparing Decimals (Example 2)
- Comparing Decimals 4
- Comparing Decimals Visually
- Comparing Decimals: Difference in Largest Place Value
- Comparing Decimals: Ordering from Least to Greatest
- Comparing Decimals: Ordering from Smallest to Biggest
- Comparing Distributions with Dot Plots
- Comparing Dot Plots, Histograms and Box Plots
- Comparing Fractions
- Comparing Fractions 2
- Comparing Fractions of Different Wholes (Part 1)
- Comparing Fractions of Different Wholes (Part 2)
- Comparing Fractions on a Number Line
- Comparing Fractions Visually and on a Number Line
- Comparing Fractions Visually with Bars
- Comparing Fractions Visually with Pies
- Comparing Fractions with Greater Than and Less Than Symbols
- Comparing Fractions with the Same Denominator
- Comparing Fractions with the Same Numerator
- Comparing Irrational Numbers Involving Radicals
- Comparing Lengths
- Comparing Linear Functions (Example 1)
- Comparing Linear Functions (Example 2)
- Comparing Linear Functions (Example 3)
- Comparing Linear Functions Word Problem: Walking to School
- Comparing Linear Functions Word Problem: Walking to Work
- Comparing Linear Functions Word Problem: Wall Race
- Comparing Multi-Digit Numbers
- Comparing Negatives with Variables
- Comparing Nonprofit vs. For Profit Colleges
- Comparing Numbers of Objects
- Comparing Numbers Represented in Different Ways
- Comparing Place Values (Example 1)
- Comparing Place Values (Example 2)
- Comparing Public vs. Private Colleges
- Comparing Rates
- Comparing Rational Numbers
- Comparing Side Lengths After Dilation
- Comparing Small Numbers on the Number Line
- Comparing Theoretical to Experimental Probabilities
- Comparing Universities vs. Liberal Arts Colleges
- Comparing Values with a Calculator
- Comparing Vocational vs. 2-Year vs. 4-Year Colleges
- Comparing Whole Numbers
- Comparing Whole Numbers 2
- Comparing Whole Numbers 3
- Comparing with Multiplication: Basic Exercises
- Comparison Word Problems
- Comparison Word Problems: Ages and Heights
- Comparison Word Problems: Money and Distance
- Comparison Word Problems: Ron and Hermione Strength
- Complementary and Supplementary Angles
- Completing Perfect Square Trinomials
- Completing the square
- Completing the Square 1
- Completing the Square 2
- Completing the Square 3
- Completing the Square 4
- Completing the Square to Solve Quadratic Equations
- Complex Conjugates
- Complex Conjugates Example
- Complex Determinant Example
- Complex Numbers
- Complex Numbers (part 1)
- Complex Numbers (part 2)
- Complex Roots From the Quadratic Formula
- Complicated Rational Expressions
- Components of GDP
- Composing Shapes
- Compositional and Mechanical Layers of the Earth
- Compound Inequalities
- Compound Inequalities 2
- Compound Inequalities 3
- Compound Inequalities 4
- Compound Interest and e (Part 2)
- Compound Interest and e (Part 3)
- Compound Interest and e (Part 4)
- Compound Probability of Independent Events
- Compound Sample Spaces
- Computer Programming: A Shorter Shortcut
- Computer Programming: Adding an Event Listener
- Computer Programming: Altering Tables After Creation
- Computer Programming: Animating DOM with SetInterval
- Computer Programming: Animating Styles with CSS Animations
- Computer Programming: Animating Styles with RAF
- Computer Programming: Arrays of Objects
- Computer Programming: Booleans
- Computer Programming: Changing Attributes
- Computer Programming: Changing CSS Classes
- Computer Programming: Changing Rows with UPDATE and DELETE
- Computer Programming: Clarifying with Comments
- Computer Programming: Combining Multiple Joins
- Computer Programming: Creating Elements from Scratch
- Computer Programming: CSS : More Text Properties
- Computer Programming: CSS in the Wild: Google Maps
- Computer Programming: CSS: Basics
- Computer Programming: CSS: Box Model
- Computer Programming: CSS: Combining Class and Element Selectors
- Computer Programming: CSS: Descendant Selectors
- Computer Programming: CSS: Dynamic Pseudo Classes
- Computer Programming: CSS: Floating Elements
- Computer Programming: CSS: Font Family
- Computer Programming: CSS: Font Size
- Computer Programming: CSS: Font Styles
- Computer Programming: CSS: Grouping Elements
- Computer Programming: CSS: Grouping Selectors
- Computer Programming: CSS: Inheritance
- Computer Programming: CSS: Positioning
- Computer Programming: CSS: Selecting by Class
- Computer Programming: CSS: Specificity
- Computer Programming: CSS: Using Multiple Classes
- Computer Programming: CSS: Width Height Overflow
- Computer Programming: Debugging Web Pages with the Browser Console
- Computer Programming: Debugging with Println()
- Computer Programming: Drawing Triangles with Blocks
- Computer Programming: Finding Elements by CSS Selector
- Computer Programming: Finding Elements by ID
- Computer Programming: Finding Multiple Elements by Tag Name or Class Name
- Computer Programming: For Loops
- Computer Programming: Function Parameters
- Computer Programming: Function Return Values
- Computer Programming: Functions
- Computer Programming: HTML: Basics
- Computer Programming: HTML: Comments
- Computer Programming: HTML: Images
- Computer Programming: HTML: Internal Links
- Computer Programming: HTML: Links
- Computer Programming: HTML: Lists
- Computer Programming: HTML: Tables
- Computer Programming: HTML: Text Emphasis
- Computer Programming: HTML: Validation
- Computer Programming: If Statements
- Computer Programming: If/Else (Part 1)
- Computer Programming: If/Else (Part 2)
- Computer Programming: Incrementing Shortcuts
- Computer Programming: Introduction to Animation
- Computer Programming: Introduction to Arrays
- Computer Programming: Introduction to Coloring
- Computer Programming: Introduction to Drawing
- Computer Programming: Introduction to Games and Visualizations
- Computer Programming: Introduction to Objects
- Computer Programming: Introduction to Programming
- Computer Programming: Introduction to Variables
- Computer Programming: Introduction to While Loops
- Computer Programming: Joining Related Tables
- Computer Programming: Joining Related Tables with LEFT OUTER JOIN
- Computer Programming: Joining Tables
- Computer Programming: Joining Tables to Themselves with Self Joins
- Computer Programming: Local and Global Variables
- Computer Programming: Logical Operators
- Computer Programming: Looping Through Arrays
- Computer Programming: Modifying Arrays
- Computer Programming: Modifying Objects
- Computer Programming: More Complex Queries with AND OR
- Computer Programming: More Drawing
- Computer Programming: More Mouse Interaction
- Computer Programming: More Variables
- Computer Programming: More While Loops
- Computer Programming: Nested For Loops
- Computer Programming: Object Inheritance
- Computer Programming: Object Types
- Computer Programming: Preventing Default Behavior of Events
- Computer Programming: Processing Forms with Events
- Computer Programming: Pseudocode
- Computer Programming: Putting JavaScript in a Web Page
- Computer Programming: Querying IN Subqueries
- Computer Programming: Readable Code
- Computer Programming: Resizing Shapes with Variable Expressions
- Computer Programming: Restricting Grouped Results with HAVING
- Computer Programming: Setting InnerHTML and TextContent
- Computer Programming: Special Processing JavaScript Functions
- Computer Programming: SQL or SEQUEL?
- Computer Programming: SQL: Aggregating Data
- Computer Programming: SQL: Creating a Table and Inserting Data
- Computer Programming: SQL: Querying the Table
- Computer Programming: Terrific Text (Part 1)
- Computer Programming: Terrific Text (Part 2)
- Computer Programming: The Document Object Model (DOM)
- Computer Programming: The Power of the Docs
- Computer Programming: The Window Object
- Computer Programming: Using a JavaScript Library: Slideshow Library
- Computer Programming: Using Math Expressions
- Computer Programming: Using the Event Properties
- Computer Programming: Variable Expressions
- Computer Programming: Welcome to Making Web Pages Interactive
- Computer Programming: Welcome to Natural Simulations
- Computer Programming: Welcome to SQL
- Computer Programming: What Is an Algorithm and Why Should You Care?
- Computer Programming: What Is Programming?
- Computing and Comparing Rates
- Concave Lenses
- Conceptual Understanding of Multiplying Fractions and Whole Numbers (Example 1)
- Conceptual Understanding of Multiplying Fractions and Whole Numbers (Example 2)
- Conditional Probability and Combinations
- Congruent and Similar Triangles
- Congruent legs and base angles of Isosceles Triangles
- Congruent Triangle Example 2
- Congruent Triangle Proof Example
- Congruent Triangles and SSS
- Conic Identification 3
- Conic Sections: Hyperbolas 2
- Conic Sections: Hyperbolas 3
- Conic Sections: Intro to Circles
- Conic Sections: Intro to Ellipses
- Conic Sections: Intro to Hyperbolas
- Conjugate Acids and Bases
- Connecting the Keynesian Cross to the IS-Curve
- Connection between even and odd numbers and functions
- Conservation of Angular Momentum
- Conservation of Energy
- Consistent and Inconsistent Systems
- Consistent System of Independent Equations t2
- Constant Unit Elasticity
- Constantin Brancusi, Bird in Space
- Construct a Right Isosceles Triangle
- Construct a Triangle with Constraints
- Constructing a Box-and-Whisker Plot (Example 1)
- Constructing a Box-and-Whisker Plot (Example 2)
- Constructing a Box-and-Whisker Plot (Example 3)
- Constructing a Probability Model from Observations
- Constructing a Scatter Plot
- Constructing Angles
- Constructing Numerical Expressions
- Consumer Surplus Introduction
- Consumption Function Basics
- Consumption Function with Income Dependent Taxes
- Contango
- Contango and Backwardation Review
- Contango from Trader Perspective
- Conversation about Drug Pricing
- Conversion Between Metric Units
- Converting a Fraction to a Repeating Decimal
- Converting Decimals to Fractions (Example 1)
- Converting Decimals to Fractions (Example 2)
- Converting Decimals to Fractions (Example 3)
- Converting Farenheit to Celsius
- Converting Fractions to Decimals
- Converting Fractions to Decimals Example
- Converting Gallons to Quarts Pints and Cups
- Converting Mixed Numbers and Improper Fractions (ex 1)
- Converting Mixed Numbers and Improper Fractions (ex 2)
- Converting Mixed Numbers to Improper Fractions
- Converting Pounds to Ounces
- Converting Repeating Decimals to Fractions 1
- Converting Repeating Decimals to Fractions 2
- Converting to slope-intercept form
- Converting Units of Length
- Converting Within the Metric System
- Convex Lens Examples
- Convex Lenses
- Convex Parabolic Mirrors
- Coordinate Plane Word Problem
- Coordinate Plane: Graphing Points
- Coordinate Plane: Graphing Points and Naming Quadrants
- Coordinate Plane: Graphing Points Word Problem
- Coordinate Plane: Have All the Points Been Graphed?
- Coordinate Plane: Reflecting Points
- Coordinates of a Rectangle
- Corporate Debt versus Traditional Mortgages
- Corporations and Limited Liability
- Correction to Calendar Notation
- Correction to Force of Friction Keeping the Block Stationary
- Correction to Sodium Potassium Pump video
- Correction to Total Final Velocity for Projectile
- Cosmic Background Radiation
- Cosmic Background Radiation 2
- Cosmological Time Scale 1
- Cosmological Time Scale 2
- Cost Push Inflation
- Count by Category
- Counting American Coins
- Counting by Tens
- Counting Dogs, Mice and Cookies
- Counting Dollars
- Counting in Order
- Counting in Pictures
- Counting Outcomes Using a Chart
- Counting Outcomes Using a Tree Diagram
- Counting to Find Missing Numbers Between 100 and 120
- Counting Whales, Sheep and Flowers
- Counting with a Number Grid
- Counting with Small Numbers
- Covalent Networks, Metallic, and Ionic Crystals
- CPI Index
- Creating a Bar Chart
- Creating a Fraction Through Division of Whole Numbers
- Creating Picture and Bar Graphs
- Creating Rectangles with a Given Area (Example 1)
- Creating Rectangles with a Given Area (Example 2)
- Creating the Largest Possible Number
- Credit Default Swaps
- Credit Default Swaps (CDS) Intro
- Credit Default Swaps 2
- Cross Elasticity of Demand
- Cross Product 1
- Cross Product 2
- Cross Product and Torque
- CSS PROFILE Walkthrough Part 1: Registration
- CSS PROFILE Walkthrough Part 2: Parent Demographics
- CSS PROFILE Walkthrough Part 3: Parent Financial Information
- CSS PROFILE Walkthrough Part 4: Parent Assets and Expenses
- CSS PROFILE Walkthrough Part 5: Student Demographics and Financial Information
- CSS PROFILE Walkthrough Part 6: Family List, Special Circumstances and Supplemental Questions
- Cuban Missile Crisis
- Cupcake Economics 2
- Cupcake Economics 3
- Currency Effect on Trade
- Currency Effect on Trade Review
- Currency Exchange Introduction
- Cylinder Volume and Surface Area
- Cytotoxic T Cells
- Damascus Room
- Damien Hirst’s Shark: Interpreting Contemporary Art
- Data on Chinese US Balance of Payments
- Data on Chinese Foreign Assets Increase in 2010
- Data on Chinese M1 Increase in 2010
- Debt Loops Rationale and Effects
- Deciding When to Apply: Early vs. Regular Decision
- Deciding Whether to Retake the ACT
- Deciding Whether to Retake the SAT
- Decimal Intuition with Grids
- Decimal Place Value
- Decimal Place Value 2
- Decimals and Fractions
- Decimals as Words
- Decimals on a Number Line
- Decimals: Choosing a Number to Represent Place Value
- Decimals: Comparing Place Values
- Decimals: Expanding Out Place Value
- Decimals: Writing It Out as a Number
- Decimals: Writing It Out in Words
- Decomposing a Fraction Visually
- Decomposing a Mixed Number
- Decomposing Angles
- Decomposing Hundredths on a Number Line
- Decomposing Shapes to Find Area: Addition
- Decomposing Shapes to Find Area: Grids
- Decomposing Shapes to Find Area: Subtraction
- Deductive Reasoning 1
- Deductive Reasoning 2
- Deductive Reasoning 3
- Deficit and Debt Ceiling
- Deflation
- Deflation Despite Increases in Money Supply
- Deflationary Spiral
- Demand Curve as Marginal Benefit Curve
- Demand-Pull Inflation under Johnson
- Dependent and Independent Variables: Expressing the Graph as an Equation
- Dependent and Independent Variables: Graphing the Equation
- Dependent and Independent Variables: The Basics
- Dependent Probability Example 1
- Dependent Probability Example 2
- Depreciating the Truck
- Depreciation
- Depreciation in Cash Flow
- Depriciation and Opportunity Cost of Capital
- Deriving Demand Curve from Tweaking Marginal Utility per Dollar
- Deriving Displacement as a Function of Time, Acceleration and Initial Velocity
- Deriving Max Projectile Displacement Given Time
- Descartes and Cartesian Coordinates
- Describing and Meaning of Percent
- Describing and Meaning of Percent 2
- Describing Scatter Plots
- Details on Shifting Aggregate Planned Expenditures
- Detectable Civilizations in our Galaxy 1
- Detectable Civilizations in our Galaxy 2
- Detectable Civilizations in our Galaxy 3
- Detectable Civilizations in our Galaxy 4
- Detectable Civilizations in our Galaxy 5
- Determining Probability
- Determining Rates with Fractions
- Determining the equation of a trigonometric function
- Development of Agriculture and Writing
- Die Rolling Probability
- Diego Velazquez, Las Meninas
- Diego Velazquez, The Drunks (Los Borrachos)
- Diego Velazquez, Vulcan’s Forge
- Difference of Cubes Factoring
- Difference of Functions
- Difference of Logarithms with Same Base
- Different Ways to Determine Time in Air
- Different Ways to Represent 1 as a Fraction
- Diffusion and Osmosis
- Digging Through Time
- Dimensions of a Cube from Its Volume
- Dimensions of Rectangle from Coordinates
- Direct and Inverse Variation
- Direct Inverse and Joint Variation
- Direct Variation 1
- Direct Variation Application
- Discriminant for Types of Solutions for a Quadratic
- Displacement from Time and Velocity Examples
- Distance Conversions (Metric)
- Distance Conversions (U.S. Customary)
- Distributive Property 2, The
- Distributive Property 3
- Distributive Property, The
- Dividing a Decimal by a Power of 10
- Dividing and Simplifying Rational Expressions
- Dividing by a Two-Digit Number (Example 1)
- Dividing by a Two-Digit Number (Example 2)
- Dividing Completely to Get a Decimal Answer
- Dividing Complex Numbers
- Dividing Decimals
- Dividing Decimals
- Dividing Decimals 2.1
- Dividing Decimals Completely
- Dividing Fractions
- Dividing Fractions
- Dividing Fractions Example
- Dividing Fractions Word Problem
- Dividing Mixed Numbers
- Dividing Mixed Numbers and Fractions
- Dividing Monomials
- Dividing Multivariable Polynomial With Monomial
- Dividing Negative Fractions
- Dividing Numbers: Introduction to Long Division
- Dividing Numbers: Introduction to Remainders
- Dividing Numbers: Long Division
- Dividing Numbers: Long Division with a Remainder
- Dividing Polynomials 1
- Dividing Polynomials With Remainders
- Dividing Real Numbers With Different Signs
- Dividing Whole Numbers and Applications 1
- Dividing Whole Numbers and Applications 2
- Dividing Whole Numbers and Applications 3
- Dividing Whole Numbers and Applications 4
- Dividing Whole Numbers and Applications 5
- Dividing Whole Numbers and Applications 6
- Dividing Whole Numbers and Fractions Word Problem: Potpourri
- Dividing Whole Numbers and Fractions Word Problem: Studying
- Dividing Whole Numbers by 10
- Division 1
- Division 2
- Division 3: More Long Division and Remainders Examples
- Division Using Understanding of Place Value
- Division Word Problem: Field Goals
- DNA
- Does a Vertical Line Represent a Function?
- Doing the Example with Accounts Payable Growing
- Domain and Range 1
- Domain and Range 2
- Domain and Range of Function Given a Formula
- Domain and Range of a Relation
- Domain of a function
- Domain of a Radical Function
- Domain of a Rational Expression 1
- Donald Judd, Untitled
- Donatello, David
- Donatello, Mary Magdalene
- Doppler Effect Formula for Observed Frequency
- Doppler Effect Formula When Source is Moving Away
- Dot vs. Cross Product
- Drawing a Quadrilateral on the Coordinate Plane
- Drawing a Trapezoid on the Coordinate Plane
- Drawing Acute, Right and Obtuse Angles
- Drawing Line Segments
- Early Train Word Problem
- Earnings and EPS
- Earth Formation
- EBITDA
- Economic Growth through Investment
- Economic Profit vs. Accounting Profit
- Economics of a Cupcake Factory
- Ed Kienholz and Nancy Reddin Kienholz, Useful Art #5: The Western Hotel
- Edgar Degas, At the Races in the Countryside
- Edgar Degas, The Bellelli Family
- Edgar Degas, The Dance Class
- Edgar Degas, Visit to a Museum
- Edgar Degas, Woman Bathing in a Shallow Tub
- Edouard Manet, A Bar at the Folies-Bergere
- Edouard Manet, Corner of a Cafe-Concert
- Edouard Manet, Emile Zola
- Edouard Manet, In the Conservatory
- Edouard Manet, The Balcony
- Edouard Manet, The Railway
- Edvard Munch, The Storm
- Edward Hopper, Nighthawks
- Efficiency of a Carnot Engine
- El Greco, Adoration of the Shepherds
- Elasticity and Strange Percent Changes
- Elasticity of Supply
- Electoral College
- Electric Potential Energy
- Electric Potential Energy (Part 2 - involves Calculus)
- Electron Configurations
- Electron Configurations 2
- Electron Transport Chain
- Electrostatics (Part 1) Introduction to Charge and Coulumb’s Law
- Electrostatics (Part 2)
- Electrotonic and Action Potentials
- Elements and Atoms
- Elements of a Strong Recommendation Letter
- Embryonic Stem Cells
- Empirical and Molecular Formulas from Stoichiometry
- Energy Inputs for Tilling a Hectare of Land
- Engaging in Extracurricular Activities
- Enterprise Value
- Enthalpy
- Entropy Intuition
- Equal Parts of Circles and Rectangles
- Equal Sign
- Equalizing Marginal Utility per Dollar Spent
- Equation fo a Line Hairier Example
- Equation of a Line 1
- Equation of a Line 2
- Equation of a line 2
- Equation of a Line 3
- Equation Special Cases
- Equations 2
- Equations 3
- Equations of Proportional Relationships
- Equations of Sequence Patterns
- Equestrian Sculpture of Marcus Aurelius
- Equilateral and Isosceles Example Problems
- Equilateral Triangle Sides and Angles Congruent
- Equity vs. Debt
- Equivalent Expressions with Distribution and Negative Numbers
- Equivalent Expressions with Negative Numbers
- Equivalent Fraction Models
- Equivalent Fractions
- Equivalent Fractions and Different Wholes
- Equivalent Fractions Example
- Equivalent Fractions Visually and on a Number Line
- Equivalent Fractions with Visuals
- Erechtheion, The
- Ernst Ludwig Kirchner, Street, Dresden
- Estate Tax Basics
- Estate Tax Introduction
- Estimating Lengths
- Estimating the Line of Best Fit
- Estimation With Decimals
- Euclid as the Father of Geometry
- Eugene Delacroix, Liberty Leading the People
- Eugene Delacroix, Scene of the Massacre at Chios
- Eugene Delacroix, The Death of Sardanapalus
- Euler Line
- Euler’s Line Proof
- Eva Hesse, Untitled (1966)
- Eva Hesse, Untitled (1970)
- Evaluate a Formula Using Substitution
- Evaluating a Polynomial at a Given Value
- Evaluating an Algebraic Expression in a Word Problem
- Evaluating an Expression With Multiple Variables
- Evaluating Exponential Expressions
- Evaluating Exponential Expressions 2
- Evaluating Expressions With Two Variables
- Evaluating Functions
- Evaluating Functions Given Their Formula
- Evaluating Functions Given Their Graph
- Evaluating Numeric Expressions with Fractions
- Evaluating Numerical Expressions with and Without Parentheses
- Events and Outcomes 1
- Events and Outcomes 2
- Events and Outcomes 3
- Evolution Clarification
- Exactly Three Heads in Five Flips
- Example Calculating Real GDP with a Deflator
- Example involving an isosceles triangle and parallel lines
- Example of Finding Reactant Empirical Formula
- Example of Solving for a Variable
- Examples of Accounting for GDP
- Exchange Traded Funds (ETFs)
- Expected Value of Binomial Distribution
- Expected Value: E(X)
- Expensing a Truck Leads to Inconsistent Performance
- Experimental Probability
- Exploring linear relationships
- Exploring Medial Triangles
- Exploring nonlinear relationships
- Exponent Properties 1
- Exponent Properties 2
- Exponent Properties 3
- Exponent Properties 4
- Exponent Properties 5
- Exponent Properties 6
- Exponent Properties 7
- Exponent Rules 1
- Exponent Rules 2
- Exponent Rules 3
- Exponential Application
- Exponential form to find complex roots
- Exponential Growth
- Exponents and Powers of Zero Patterns
- Exponents Rules Part 1
- Exponents Rules Part 2
- Exponents with Negative Bases
- Extraneous Solutions for Radical Equations
- Extraneous Solutions to Rational equations
- Facing the Standardized Tests
- Factor Expressions by Grouping
- Factoring a Linear Binomial by Taking a Common Factor
- Factoring Algebraic Expressions Using the Distributive Property
- Factoring and the Distributive Property
- Factoring and the Distributive Property 2
- Factoring and the Distributive Property 3
- Factoring Difference of Squares
- Factoring Perfect Square Trinomials
- Factoring Special Products 1
- Factoring Special Products 2
- Factoring Special Products 3
- Factoring Sum of Cubes
- Factoring Trinomials by Grouping 1
- Factoring Trinomials by Grouping 2
- Factoring Trinomials by Grouping 3
- Factoring Trinomials by Grouping 4
- Factoring Trinomials by Grouping 5
- Factoring Trinomials by Grouping 6
- Factoring Trinomials With a Common Factor
- Factoring Trinomials With a Leading 1 Coefficient
- Factoring Trinomials With a Non-1 Leading Coefficient by Grouping
- Factors Affecting Supply
- FAFSA Walkthrough Part 1: Account Setup
- FAFSA Walkthrough Part 2: Student Demographics
- FAFSA Walkthrough Part 3: School Selection
- FAFSA Walkthrough Part 4: Dependency Status
- FAFSA Walkthrough Part 5: Parent Demographics
- FAFSA Walkthrough Part 6: Parent Financial Information
- FAFSA Walkthrough Part 7: Student Financial Information
- FAFSA Walkthrough Part 8: Sign and Submit
- Fair Value Accounting
- Fed Open Market Operations
- Federal Reserve Balance Sheet
- Ferris Wheel Trig Problem
- Ferris Wheel Trig Problem (part 2)
- FICA Tax
- Figuring out all the angles for congruent triangles example
- Filippo Brunelleschi, Dome of the Cathedral of Florence
- Filling Rectangles with Squares
- Financial Aid Package Comparison (Part 3)
- Financial Aid Package Components (Part 1)
- Financial Aid Package Example (Part 2)
- Financial Crisis in Thailand Caused by Speculative Attack
- Financial Weapons of Mass Destruction
- Find an Unknown in a Proportion
- Find an Unknown in a Proportion 2
- Find Measure of Complementary Angles
- Find Measure of Supplementary Angles
- Find the Measure of Vertical Angles
- Find the Volume of a Ring
- Find the Volume of Rectangular Crates Inside Rectangular Crates
- Finding a Missing Side when Given Perimeter
- Finding a Missing Side when Given the Area
- Finding a Percentage
- Finding Area by Breaking Up the Shape
- Finding Area by Rearranging Parts
- Finding Area Using Similarity and Congruence
- Finding Common Denominators
- Finding Congruent Triangles
- Finding Cube Roots
- Finding Factors and Multiples
- Finding Factors of a Number
- Finding Intercepts from a Table
- Finding Missing Angles
- Finding more angles
- Finding Patterns in Numbers
- Finding Surface Area of a Triangular Prism Using a Net
- Finding the 100th Term in a Sequence
- Finding the Coordinates of the Missing Vertex
- Finding the Equation of a Line in Slope-Intercept Form from a Table
- Finding the Perimeter when a Side Length Is Missing
- Finding the Reasonable Unit of Measurement
- Finding the Right Scatter Plot to Describe Data
- Finding the X-Intercept of a Line
- Finding Unit Prices
- Finding Unit Rates
- Firestick Farming
- First Degree Price Discrimination
- First Law of Thermodynamics/ Internal Energy
- First Living Things on Land Clarification
- Fixed, Variable and Marginal Cost
- Floating Exchange Effect on China
- Floating Exchange Effect on US
- Floating Exchange Resolving Trade Imbalance
- Fluids (Part 1)
- Fluids (Part 10)
- Fluids (Part 11)
- Fluids (Part 12)
- Fluids (Part 2)
- Fluids (Part 3)
- Fluids (Part 4)
- Fluids (Part 5)
- Fluids (Part 6)
- Fluids (Part 7)
- Fluids (Part 8)
- Fluids (Part 9)
- Foci of a Hyperbola
- Foci of an Ellipse
- Focus and Directrix of a Parabola 2
- Force of Friction Keeping the Block Stationary
- Force of Friction Keeping Velocity Constant
- Formula From Mass Composition
- Forward Contract Introduction
- Four Fundamental Forces
- Fra Angelico, The Annunciation
- Fra Filippo Lippi, Madonna and Child with Two Angels
- Fraction Basics
- Fraction Word Problem: Lizard Length
- Fraction Word Problem: Piano Practice
- Fraction Word Problem: Pieces of Pizza
- Fraction Word Problem: Spider Eyes
- Fraction Word Problems 1 (ex 1)
- Fraction Word Problems 1 (ex 2)
- Fraction Word Problems 1 (ex 3)
- Fraction Word Problems 1 (ex 4)
- Fraction-Decimal Intuition Problems
- Fractional Exponent Expressions 1
- Fractional Exponent Expressions 2
- Fractional Exponent Expressions 3
- Fractional Reserve Banking Commentary 1
- Fractions as Division by Power of 10
- Fractions in Lowest Terms
- Fractions on a Number Line (Example 1)
- Fractions on a Number Line (Example 2)
- Fractions on the Number Line 1 (ex 1)
- Fractions on the Number Line 1 (ex 2)
- Fractions on the Number Line 2 (ex 1)
- Fractions on the Number Line 3 (ex 1)
- Fractions on the Number Line 3 (ex 2)
- Fractions: More than One Equal Section
- Francisco Goya, The Family of Charles IV
- Francois Boucher, Madame de Pompadour
- Frank Lloyd Wright, Solomon R. Guggenheim Museum, New York City
- FRB Commentary 2: Deposit Insurance
- FRB Commentary 3: Big Picture
- French Invasion of Russia
- French Revolution (Part 1)
- French Revolution (Part 2)
- French Revolution (Part 3)- Reign of Terror
- French Revolution (Part 4)- The Rise of Napoleon Bonaparte
- Frequency Probability and Unfair Coins
- Frequency Stability
- Frequency Tables and Dot Plots
- Frida Kahlo, Frieda and Diego Rivera
- Full Reserve Banking
- Fun Trig Problem
- Function Inverse Example 1
- Function Inverses Example 2
- Function Inverses Example 3
- Function Notation in Context
- Functional Relationships 1
- Functions (part 4)
- Functions (Part III)
- Functions Part 2
- Futures and Forward Curves
- Futures Curves II
- Futures Fair Value in the Pre-Market
- Futures Introduction
- Futures Margin Mechanics
- Futurism
- Galactic Collisions
- Galvanic Cells
- Game Theory of Cheating Firms
- GCF to Factor a Polynomial
- GDP Deflator
- Geithner 5: A Better Solution
- Geithner Plan 2.5
- Geithner Plan I
- Geithner Plan II
- Geithner Plan III
- Geithner Plan IV
- Generalized Linear Consumption Function
- Generalizing with Binomial Coefficients (bit advanced)
- Generating Equivalent Fractions
- Geometric series sum to figure out mortgage payments
- George Bellows, Pennsylvania Station
- Georges Braque, The Viaduct at L’Estaque
- Georges Seurat, A Sunday Afternoon on La Grande Jatte
- Georges Seurat, Bathers at Asnieres
- Georges Seurat, Young Woman Powdering Herself
- Georgia O’Keeffe, The Lawrence Tree
- Gerhard Richter, Betty
- Getting a Seed Round from a VC
- Getting At Least One Heads
- Getting Exactly Two Heads (Combinatorics)
- Getting to 10 by Filling Boxes
- Gibbs Free Energy and Spontaneity
- Gibbs Free Energy Example
- Giorgione, The Tempest
- Giotto, Scrovegni Chapel, Padua, (Part 1)
- Giotto, Scrovegni Chapel, Padua, (Part 2)
- Giotto, Scrovegni Chapel, Padua, (Part 3)
- Giotto, Scrovegni Chapel, Padua, (Part 4)
- Giovanni Bellini & Titian, Feast of the Gods
- Giovanni Bernini, Bust of Medusa
- Giovanni Bernini, David
- Giovanni Bernini, Ecstasy of St. Teresa
- Giovanni Bernini, Sant’Andrea al Quirinale
- Glucose Concentration Conversion
- Glucose, Insulin and Diabetes
- Glycolysis
- Going Back to the Till: Series B
- Golden Stool (Sika Dwa Kofi)
- Government Spending and the IS-LM Model
- Government’s Financial Condition
- Grant Wood, American Gothic
- Graph of the sine function
- Graphical Relations and Functions
- Graphical Slope of a Line
- Graphical System of Inequalities
- Graphical Systems Application Problem
- Graphing a Basic Function
- Graphing a line in slope intercept form
- Graphing a Quadratic Function
- Graphing Exponential Functions
- Graphing Hundredths on a Number Line
- Graphing Inequalities 1
- Graphing Inequalities 2
- Graphing linear inequalities in two variables 2
- Graphing linear inequalities in two variables 3
- Graphing Linear Inequalities in Two Variables Example 2
- Graphing Logarithmic Functions
- Graphing Natural Logarithm Function
- Graphing Proportional Relationships (Example 1)
- Graphing Proportional Relationships (Example 2)
- Graphing Proportional Relationships (Example 3)
- Graphing Radical Functions
- Graphing Systems of Equations
- Graphing Systems of Inequalities
- Graphing systems of inequalities
- Graphing systems of inequalities 2
- Graphing systems of inequalities 3
- Graphing trig functions
- Graphing Using X and Y Intercepts
- Graphs of trig functions
- Gravitation (Part 2)
- Gravity for Astronauts in Orbit
- Greater Than and Less Than Symbols
- Greatest Common Divisor
- Greatest Common Factor
- Greek Debt Recession and Austerity (Part 1)
- Greek Financial Crisis (Part 2)
- Groups of the Periodic Table
- Growing by a percentage
- Gustav Klimt, Beethoven Frieze
- Gustav Klimt, Death and Life
- Gustav Klimt, The Kiss
- Hagia Sophia as a Mosque
- Hagia Sophia, Istanbul
- Hairier Slope of Line
- Haitian Revolution (Part 1)
- Haitian Revolution (Part 2)
- Half-Life
- Halves and Fourths of Shapes
- Hannah Hoch, Cut with the Kitchen Knife
- Hans Holbein the Younger, Portrait of Henry VIII
- Hans Holbein the Younger, The Ambassadors
- Hardy-Weinberg Principle
- Harmonic Motion Part 2 (Calculus)
- Harmonic Motion Part 3 (No Calculus)
- Hawaiian Islands Formation
- Head of Augustus
- Health Care Costs in US vs Europe
- Healthcare System Overview
- Heart Disease and Heart Attacks
- Heat of Formation
- Hector Guimard, City Entrance, Paris Metropolitain
- Hedge Fund Intro
- Hedge Fund Strategies - Long Short 1
- Hedge Fund Strategies - Long Short 2
- Hedge Fund Strategies - Merger Arbitrage 1
- Hedge Fund Structure and Fees
- Hedge Funds, Venture Capital, and Private Equity
- Helper T Cells
- Hemoglobin
- Henri Cartier-Bresson, Behind the Gare Saint-Lazare, Paris
- Henri de Toulouse-Lautrec, At the Moulin Rouge
- Henri Matisse, Luxe, Calme et Volupte
- Henri Matisse, The Piano Lesson
- Henri Matisse, The Red Studio
- Heron’s Formula
- Hess’s Law and Reaction Enthalpy Change
- Hess’s Law Example
- Heterogeneous Equilibrium
- Highly Selective vs. Selective vs. Nonselective Colleges
- Home Equity Loans
- House Altar Depicting Akhenaten, Nefertiti and Three Daughters
- Housing Price Conundrum (Part 2)
- Housing Price Conundrum (Part 3)
- Housing Conundrum (Part 4)
- How and Why Greece Would Leave the Euro (Part 3)
- How Earth’s Tilt Causes Seasons
- How Many People to Hire Given the MPR Curve
- How One-Point Linear Perspective Works
- How to Approximate Square Roots
- How to Calculate Interquartile Range (IQR)
- How to Classify Numbers
- How to Create a Histogram
- How to Describe Real-World Situations with Inequalities
- How to Evaluate Expressions with Two Variables (Example 1)
- How to Evaluate Expressions with Two Variables (Example 2)
- How to Find a Missing Value Given the Mean
- How to Find Equivalent Expressions by Combining Like Terms and Using the Distributive Property
- How to Find Mistakes in One-Step Equations
- How to Find the Area of a Strange Quadrilateral on a Grid
- How to Find the Area of a Triangle on a Grid
- How to Interpret a Histogram
- How to Make a Scale Drawing
- How to Measure Volume
- How to Plot Inequalities on a Number Line
- How to Read a Line Plot that Uses Fractions
- How to Solve One-Step Equations with Fractions and Decimals
- How to Solve One-Step Multiplication and Division Equations with Fractions and Decimals
- How to Solve Two-Step Linear Equations with Decimals and Fractions
- How to Test Solutions to Equations Using Substitution
- How to Test Solutions to Inequalities
- How to Use the Distributive Property to Factor Out the Greatest Common Factor
- How to Use the Distributive Property with Variables
- How to Visually Identify Proportional Relationships Using Graphs
- How to Write Basic Expressions with Variables
- How to Write One-Step Equations for Word Problems
- How We Know About the Earth’s Core
- HTML/JS: Making Webpages Interactive with jQuery: DOM Access with jQuery
- HTML/JS: Making Webpages Interactive with jQuery: DOM Animation & Effects with jQuery
- HTML/JS: Making Webpages Interactive with jQuery: DOM Events with jQuery
- HTML/JS: Making Webpages Interactive with jQuery: DOM Modification with jQuery
- HTML/JS: Making Webpages Interactive with jQuery: Form Processing with jQuery
- HTML/JS: Making Webpages Interactive with jQuery: Further Learning
- HTML/JS: Making Webpages Interactive with jQuery: jQuery Techniques
- HTML/JS: Making Webpages Interactive with jQuery: Welcome to jQuery
- HTML/JS: Making Webpages Interactive: DOM Access Methods
- HTML/JS: Making Webpages Interactive: DOM Animation
- HTML/JS: Making Webpages Interactive: DOM Events
- HTML/JS: Making Webpages Interactive: DOM Modification
- HTML/JS: Making Webpages Interactive: Further Learning
- HTML/JS: Making Webpages Interactive: Get Ready to Make Your Webpages Interactive
- HTML/JS: Making Webpages Interactive: JS and the DOM
- HTML/JS: Making Webpages Interactive: Using JS Libraries in your Webpage
- Hubble Image of Galaxies
- Hubble’s Law
- Human Capital
- Human Evolution Overview
- Hundred Days and Waterloo
- Hydrogen Peroxide Correction
- Hyperinflation
- Hyperplasia in Colon Tissue
- i as the Principal Root of -1 (a little technical)
- Ice Accelerating Down an Incline
- Idea of Division, The
- Ideal Gas Equation: Example 1
- Ideal Gas Equation: Example 2
- Ideal Gas Equation: Example 3
- Ideal Gas Equation: PV=nRT
- Ideal Gas Example 4
- Identify the Angle
- Identifying a Proportional Relationship from a Table
- Identifying Complementary and Supplementary Angles
- Identifying Conics 1
- Identifying Conics 2
- Identifying Fraction Parts
- Identifying Geometric Solids
- Identifying Hundredths on a Number Line
- Identifying Parallel and Perpendicular Lines
- Identifying Percent Amount and Base
- Identifying Rational Numbers
- Identifying Rays
- Identifying Symmetrical Figures
- Identifying Tenths on a Number Line
- Identifying Unit Fractions Word Problem
- Identity Property of 0
- Identity Property of 1
- Identity Property of 1 (Second Example)
- IIT JEE Trigonometric Constraints
- IIT JEE Trigonometric Maximum
- IIT JEE Trigonometry Problem 1
- Images and Power: Francisco Goya’s Third of May, 1808
- Imaginary Roots of Negative Numbers
- Impact of a Radius Change on the Area of a Circle
- Impact on Median and Mean when Increasing Highest Value
- Impact on Median and Mean when Removing Lowest Value
- Impact Veolocity From Given Height
- Incenter and incircles of a triangle
- Inclined Plane Force Components
- Income and Expenditure Views of GDP
- Increasing Opportunity Cost
- Independent and Dependent Systems
- Independent Events 1
- Independent Events 2
- Independent Events 3
- Inductive Patterns
- Inductive Reasoning 1
- Inductive Reasoning 2
- Inductive Reasoning 3
- Inequalities
- Inequalities on a Number Line
- Inferior Goods Clarification
- Inflammation
- Inflammatory Response
- Inflation & Deflation3: Obama Stimulus Plan
- Inflation Data
- Inflation Overview
- Inflation, Deflation & Capacity Utilization
- Inflation, Deflation & Capacity Utilization 2
- Inradius Perimeter and Area
- Inscribed and Central Angles
- Institutional Critique: Hans Haacke’s Seurat’s Les Poseuses (Small Version), 1884-1975
- Institutional Roles in Issuing and Processing Credit Cards
- Integer Equations to Describe a Diagram
- Integer sums
- Intelligent Design and Evolution
- Interactive Module: Finding Factors
- Interest (Part 2)
- Interest as Rent for Money
- Interest Rate Swap 1
- Interest Rate Swap 2
- Interesting Perimeter and Area Problems
- Interesting Polynomial Coefficient Problem
- Intergalactic Scale
- Internet 101: How the Internet Works
- Interpreting a Linear Graph Word Problem
- Interpreting a Linear Table Word Problem
- Interpreting a Scale Drawing
- Interpreting a Trend Line
- Interpreting Absolute Value as Distance
- Interpreting Absolute Value in Real World Problems
- Interpreting Bar Graphs: Alligators
- Interpreting Bar Graphs: Colors
- Interpreting Box Plots
- Interpreting Futures Fair Value in the Premarket
- Interpreting Graphs of Proportional Relationships
- Interpreting Inequalities
- Interpreting Integer Expressions on a Number Line
- Interpreting Linear Expressions (Example 1)
- Interpreting Linear Expressions (Example 2)
- Interpreting Linear Graphs
- Interpreting Multiplication and Division of Negative Numbers
- Interpreting Negative Number Statements
- Interpreting Picture Graphs: Notebook
- Interpreting Picture Graphs: Paint
- Interpreting the Graph of a Function
- Interpreting Two-Way Relative Frequency Tables
- Intro to 30-60-90 Triangles
- Intro to Springs and Hooke’s Law
- Intro to the Endocrine System
- Introduction to Addition
- Introduction to Addition Using Groups of 10
- Introduction to angles (old)
- Introduction to Area and Unit Squares
- Introduction to Balance Sheets
- Introduction to Bonds
- Introduction to Cellular Respiration
- Introduction to Comparing Fractions with Different Denominators
- Introduction to Compound Interest
- Introduction to Compound Interest and e
- Introduction to Conic Sections
- Introduction to Cube Roots
- Introduction to Decimals
- Introduction to Equivalent Fractions
- Introduction to Even and Odd Numbers
- Introduction to Evolution and Natural Selection
- Introduction to Exponential Decay
- Introduction to Exponents
- Introduction to Function Inverses
- Introduction to functions
- Introduction to Gravity
- Introduction to Harmonic Motion
- Introduction to Heredity
- Introduction to HTML/CSS: Making Webpages: CSS Layout
- Introduction to HTML/CSS: Making Webpages: CSS Text Properties
- Introduction to HTML/CSS: Making Webpages: Further Learning
- Introduction to HTML/CSS: Making Webpages: Introduction to CSS
- Introduction to HTML/CSS: Making Webpages: Introduction to HTML
- Introduction to HTML/CSS: Making Webpages: More CSS Selectors
- Introduction to HTML/CSS: Making Webpages: More HTML Tags
- Introduction to HTML/CSS: Making Webpages: Other Ways to Embed CSS
- Introduction to HTML/CSS: Making Webpages: Web Development Tools
- Introduction to i and Imaginary Numbers
- Introduction to Inflation
- Introduction to Interest
- Introduction to JS: Drawing & Animation: Animation Basics
- Introduction to JS: Drawing & Animation: Arrays
- Introduction to JS: Drawing & Animation: Becoming a Better Programmer
- Introduction to JS: Drawing & Animation: Coloring
- Introduction to JS: Drawing & Animation: Debugging Programs
- Introduction to JS: Drawing & Animation: Drawing Basics
- Introduction to JS: Drawing & Animation: Functions
- Introduction to JS: Drawing & Animation: Interactive Programs
- Introduction to JS: Drawing & Animation: Introduction to Programming
- Introduction to JS: Drawing & Animation: Logic and If Statements
- Introduction to JS: Drawing & Animation: Looping
- Introduction to JS: Drawing & Animation: Object-Oriented Design
- Introduction to JS: Drawing & Animation: Objects
- Introduction to JS: Drawing & Animation: Resizing with Variables
- Introduction to JS: Drawing & Animation: Texts and Strings
- Introduction to JS: Drawing & Animation: Variables
- Introduction to JS: Drawing & Animation: Writing Clean Code
- Introduction to Kinetics
- Introduction to Light
- Introduction to Limits
- Introduction to Limits (HD)
- Introduction to Line Plots
- Introduction to Logarithm Properties
- Introduction to Logarithm Properties (Part 2)
- Introduction to Logarithms
- Introduction to Magnetism
- Introduction to Mechanical Advantage
- Introduction to Medieval Scripts, An
- Introduction to Momentum
- Introduction to Mortgage Loans
- Introduction to Multiplication
- Introduction to Multiplying Decimals
- Introduction to Negative Exponents (Part 1)
- Introduction to Negative Exponents (Part 2)
- Introduction to Newton’s Law of Gravitation
- Introduction to Order of Operations
- Introduction to Oxidation States
- Introduction to Perimeter
- Introduction to pH, pOH, and pKw
- Introduction to Place Value
- Introduction to Present Value
- Introduction to Proportional Relationships
- Introduction to Random Variables
- Introduction to Rates
- Introduction to Rational and Irrational Numbers
- Introduction to Ratios
- Introduction to Ratios (Apples and Oranges)
- Introduction to Ratios (New HD Version)
- Introduction to SQL: Querying and Managing Data: Further Learning in SQL
- Introduction to SQL: Querying and Managing Data: Modifying Databases with SQL
- Introduction to SQL: Querying and Managing Data: More Advanced SQL Queries
- Introduction to SQL: Querying and Managing Data: Relational Queries in SQL
- Introduction to SQL: Querying and Managing Data: SQL Basics
- Introduction to Square Roots
- Introduction to Subtraction
- Introduction to Tension
- Introduction to the Atom
- Introduction to the Doppler Effect
- Introduction to the Income Statement
- Introduction to the Price-to-Earnings Ratio
- Introduction to the Protestant Reformation, Part 1: Setting the Stage
- Introduction to the Protestant Reformation, Part 2: Martin Luther
- Introduction to the Protestant Reformation, Part 3: Varieties of Protestantism
- Introduction to the Protestant Reformation, Part 4: The Counter-Reformation
- Introduction to the quadratic equation
- Introduction to the Yield Curve
- Introduction to Torque
- Introduction to Transformations on the Coordinate Plane
- Introduction to Types of Quadrilaterals
- Introduction to Vectors and Scalars
- Introduction to Waves
- Introduction to Work and Energy
- Intuition on Static and Kinetic Friction Comparisons
- Inverse Property of Addition
- Inverse Property of Multiplication
- Inverse Trig Functions: Arccos
- Inverse Trig Functions: Arcsin
- Inverse Trig Functions: Arctan
- Inverse Variation Application
- Investment and Consumption
- Investment and Real Interest Rates
- Investment vs. Consumption 1
- Investment vs. Consumption 2
- Ionic, Covalent, and Metallic Bonds
- Is Limited Liability or Double Taxation Fair
- Is Short Selling Bad?
- Jackie Winsor, #1 Rope
- Jackson Pollock, One: Number 31, 1950
- Jacob Lawrence, The Migration Series
- Jacopo Tintoretto, The Last Supper
- Jacques-Louis David, The Death of Marat
- Jacques-Louis David, The Emperor Napoleon in His Study at the Tuileries
- Jacques-Louis David, The Lictors Returning to Brutus the Bodies of His Sons
- Jacques-Louis David, The Oath of the Horatii
- Jan van Eyck, Ghent Altarpiece
- Jan van Eyck, Portrait of Giovanni Arnolfini and His Wife
- Jan van Eyck, The Madonna in the Church
- Jasper Johns, Flag
- Jean (Hans) Arp, Untitled
- Jean Courbet, A Burial at Ornans
- Jean Courbet, The Artist’s Studio
- Jean-Francois Millet, The Gleaners
- Jean-Honore Fragonard, The Progress of Love: The Meeting
- Jean-Honore Fragonard, The Swing
- Johannes Vermeer, Girl with a Pearl Earring
- Johannes Vermeer, The Art of Painting
- Johannes Vermeer, Young Woman with a Water Pitcher
- John Baldessari, I Will Not Make Any More Boring Art
- John Constable, The Hay Wain
- John Everett Millais, Christ in the House of His Parents
- John Everett Millais, Ophelia
- John Singer Sargent, Carnation, Lily, Lily, Rose
- John Singleton Copley, A Boy with a Flying Squirrel (Henry Pelham)
- Joint Variation Application
- Jose Maria Velasco, The Valley of Mexico from the Santa Isabel Mountain Range
- Joseph Turner, Rain, Steam and Speed: The Great Western Railway
- Joseph Turner, Slave Ship (Slavers Throwing Overboard the Dead and Dying, Typhoon Coming On)
- Joshua Reynolds, Lady Cockburn and Her Three Eldest Sons
- Journey into Cryptography: Ancient Cryptography
- Journey into Cryptography: Ciphers
- Journey into Cryptography: Cryptography Challenge 101
- Journey into Cryptography: Modern Cryptography
- Journey into Cryptography: Modular Arithmetic
- Journey into Cryptography: Primality Test
- Journey into Cryptography: Randomized Algorithms
- Journey into Information Theory: Ancient Information Theory
- Journey into Information Theory: Modern Information Theory
- Judgement in the Presence of Osiris, Book of the Dead
- Judith Leyster, Self-Portrait
- Justification for |a - b| = |b - a|
- K-Ar Dating Calculation
- Kayapo Headdress
- Keq Derivation Intuition
- Keq Intuition
- Keynesian Cross
- Keynesian Cross and the Multiplier
- Keynesian Economics
- Koch Snowflake Fractal
- Korean War Overview
- Krebs / Citric Acid Cycle
- Kunz Axe
- Kurt Schwitters, Merzbild 32A, The Cherry Picture
- Land Productivity Limiting Human Population
- Language and Notation of Basic Geometry
- Language and Notation of the Circle
- Language of Representation, The: Pablo Picasso’s Guitar
- Laszlo Moholy-Nagy, Climbing the Mast
- Laszlo Moholy-Nagy, Composition A.XX
- Lattice Multiplication
- Launching and Landing on Different Elevations
- Law Code Stele of King Hammurabi
- Law of cosines
- Law of Demand
- Law of Large Numbers
- Law of Supply
- Le Chatelier’s Principle
- Least Common Multiple (Example 1)
- Least Common Multiple (Example 2)
- Least Common Multiple (LCM)
- Least Common Multiple and Greatest Common Factor Word Problems
- LeBron Asks About Comparing Earth’s History to a Basketball Game
- LeBron asks about free throws versus three pointers
- LeBron Asks About Newton’s 3rd Law
- LeBron asks about the chances of making 10 free throws
- LeBron Asks: What Muscles Do We Use When Shooting a Basket?
- LeBron Asks: Why Does Humidity Make it Feel Hotter?
- LeBron Asks: Why Does Sweating Cool You Down?
- Length of a Line Segment Using Linear Equations
- Length Word Problems
- Leonardo da Vinci’s Letter to the Duke of Milan
- Leonardo da Vinci, Adoration of the Magi
- Leonardo da Vinci, The Last Supper
- Leonardo da Vinci, The Virgin of the Rocks
- Level 1 Exponents
- Level 1 multiplying expressions
- Level 2 Addition
- Level 2 Exponents
- Level 3 Exponents
- Level 4 Division
- Level 4 Subtraction
- LIBOR
- Life Cycle of Massive Stars
- Limit Examples (part 1)
- Limit Examples (part 2)
- Limit Examples (part3)
- Limit Examples w/ brain malfunction on first prob (part 4)
- Limiting Reactant Example Problem 1
- Linear and Nonlinear Functions (Example 1)
- Linear and Nonlinear Functions (Example 2)
- Linear and Nonlinear Functions (Example 3)
- Linear Equation Word Problem: Computer Store
- Linear Equation Word Problem: Orange Trees
- Linear Perspective: Filippo Brunelleschi’s Experiement
- Lines, Line Segments, and Rays
- Liquid Volume (Capacity) Problems
- LM Part of the IS-LM Model
- Loanable Funds Interpretation of IS Curve
- Locate Integers on a Number Line
- Logarithm of a Power
- Logarithmic Equations
- Logarithmic Equations 2
- Logarithmic Scale
- Long Division with Decimals
- Long Straddle
- Long Term Supply Curve and Economic Profit
- Long-Run Aggregate Supply
- Loop De Loop Answer (Part 1)
- Loop De Loop Answer (Part 2)
- Loop De Loop Question
- Lower Bound on Forward Settlement Price
- Lyonel Feininger, Cathedral for Program of the State Bauhaus in Weimar
- Mach Numbers
- Macrostates and Microstates
- Magentism 5
- Magnetism 10: Electic Motors
- Magnetism 11: Electric Motors
- Magnetism 12: Induced Current in a Wire
- Magnetism 2
- Magnetism 3
- Magnetism 4
- Magnetism 6: Magnetic Field Due to Current
- Magnetism 7
- Magnetism 8
- Magnetism 9: Electric Motors
- Making 5
- Making Picture Graphs and Line Plots
- Making Predictions with Probability
- Making Sense of Complex Fractions
- Making the College Transition
- Making the Most of High School Classes
- Managing Your Debt Level
- Marcel Duchamp’s Shovel: Art as Concept
- Marcel Duchamp, Fountain
- Marcel Duchamp, The Red Box (Boite-en-Valise), Series F
- Marginal Cost and Average Total Cost
- Marginal Revenue and Marginal Cost
- Marginal Revenue Below Average Total Cost
- Marginal Utility
- Mark Rothko, No. 3/No. 13
- Market Capitalization
- Market Equilibrium
- Market Value of Assets
- Marking Data on Line Plots
- Mary Cassatt, In the Loge
- Mary Cassatt, The Child’s Bath
- Mary Cassatt, The Loge
- Mary Cassatt, Woman with a Pearl Necklace in a Loge
- Masaccio, Holy Trinity
- Mask of Agamemnon, Mycenae
- Mass and Weight Clarification
- Mass Problems
- Math Mechanics of Thai Banking Crisis
- Math Patterns (Example 1)
- Math Patterns (Example 2)
- Mathy Versions of MPC and Multiplier (Optional)
- Maxwell’s Demon
- Maya Lin, Vietnam Veterans Memorial
- Mean Absolute Deviation (Example 1)
- Mean Absolute Deviation (Example 2)
- Mean Median and Mode
- Measures of Center
- Measuring a Golden Statue
- Measuring Angles
- Measuring Angles in Degrees
- Measuring Angles with a Circular Protractor
- Measuring Area with Partial Unit Squares
- Measuring Lengths
- Measuring Lengths with Different Units
- Measuring the Same Rectangle with Different Unit Squares
- Measuring Volume as Area Times Length
- Measuring Volume in Unit Cubes by Decomposing a Shape
- Measuring Volume Through Decomposition
- Measuring Volume with Unit Cubes
- Mechanical Advantage (Part 2)
- Mechanical Advantage (Part 3)
- Median and Range Word Problem
- Median Centroid Right Triangle Example
- Medians divide into smaller triangles of equal area
- Medicare Overview
- Medicare Sustainability
- Medieval Textbook, A
- Meet the Professional
- Mega Millions Jackpot Probability
- Mental Technique for Subtraction Without Regrouping
- Message to Parents on Paying for College, A
- Metric System: Units of Distance
- Metric System: Units of Volume
- Metric System: Units of Weight
- Michelangelo Caravaggio, Calling of St. Matthew
- Michelangelo Caravaggio, Contarelli Chapel, San Luigi dei Francesi, Rome
- Michelangelo Caravaggio, The Supper at Emmaus
- Michelangelo’s Early Work
- Michelangelo, David
- Michelangelo, Last Judgment
- Michelangelo, Laurentian Library
- Michelangelo, Pieta
- Michelangelo, Sistine Chapel Ceiling
- Mies van der Rohe, Seagram Building, New York City
- Milankovitch Cycles Precession and Obliquity
- Mini-Video on Ion Size
- Minimum Wage and Price Floors
- Misleading Line Graphs
- Missing Measurements for Similar Triangles
- Missing Number for Addition and Subtraction Within 1,000
- Missing Numbers in Addition and Subtraction Within 100
- Missing Value Addition and Subtraction Problems with Negative Numbers (Example 1)
- Missing Value Addition and Subtraction Problems with Negative Numbers (Example 2)
- Mistakes in Solving Equations
- Mitosis, Meiosis, and Sexual Reproduction
- Mixed Numbers and Improper Fractions
- Mixed Numbers on a Number Line
- Mixture problems 1
- Mixture problems 2
- Mixture problems 3
- Moderate Inflation in a Good Economy
- Molecular and Empirical Formulas
- Molecular and Empirical Formulas from Percent Composition
- Moments
- Moments (Part 2)
- Momentum: Ice Skater Throws a Ball
- Monetary and Fiscal Policy
- Money Supply - M0 M1 and M2
- Money Supply and Demand Impacting Interest Rates
- Money Word Problem: Currency Conversion
- Money Word Problem: Making Change
- Monomial Greatest Common Factor
- Monopolist Optimizing Price (Part 1) - Total Revenue
- Monopolist Optimizing Price (Part 2) - Marginal Revenue
- Monopolist Optimizing Price (Part 3) - Dead Weight Loss
- Monopolistic Competition and Economic Profit
- Monopoly Basics
- More advanced ratio problem--with Algebra (HD version)
- More Comparison Word Problems
- More Complicated Order of Operations Example
- More Exponential Decay Examples
- More Involved Multi-Step Equation
- More Limits
- More Multiplying Polynomials
- More on Balance Sheets and Equity
- More on Elasticity of Demand
- More on Entropy
- More on Equivalent Fractions
- More on Final and Intermediate GDP Contributions
- More on Internal Energy
- More on IPOs
- More on Nash Equilibrium
- More on Orbitals and Eletron Configuration
- More on Oxidation States
- More on Quantitative Easing (and Credit Easing)
- More on Significant Figures
- More on the Concept of Multiplication
- More on Total Revenue and Elasticity
- More on why SSA is not a postulate
- More percent problems
- More Rational Exponents and Exponent Laws
- More Rigorous Gibbs Free Example / Spontaneity Relationship
- More trig graphs
- More Ways to Think About Multiplying
- Mortgage Back Security Overview
- Mortgage Interest Rates
- Mortgage-Backed Securities I
- Mortgage-Backed Securities II
- Mortgage-Backed Securities III
- Mortuary Temple of Hatshepsut and Large Kneeling Statue, New Kingdom, Egypt
- Motivation for the Futures Exchange
- MPC and Multiplier
- Multi-Step Equations 1
- Multi-Step Equations 2
- Multi-Step Inequalities
- Multi-Step Inequalities 2
- Multiplication 2: The Multiplication Tables
- Multiplication 3: 10, 11,12 Times Tables
- Multiplication 5: 2-Digit times a 2-Digit Number
- Multiplication 6: Multiple Digit Numbers
- Multiplication 7: Old Video Giving More Examples
- Multiplication 8: Multiplying Decimals (Old Video)
- Multiplication and Division Word Problems: Blueberries for Friends
- Multiplication and Division Word Problems: Building Height
- Multiplication and Division Word Problems: How Much Soda?
- Multiplication and Division Word Problems: Marbles for Friends
- Multiplication and Division Word Problems: Parking Lot
- Multiplication and Division Word Problems: Party Guests
- Multiplication and Division Word Problems: Running Distance
- Multiplication and Division Word Problems: Theater Seats
- Multiplication as Groups of Objects
- Multiplication Word Problems: Pieces of Pizza
- Multiply and Simplify a Radical Expression 1
- Multiply and Simplify a Radical Expression 2
- Multiplying 1-Digit Numbers by 10, 100 and 1,000
- Multiplying 1-Digit Numbers by Multiples of 10, 100 and 1,000
- Multiplying a Decimal by a Power of 10
- Multiplying and Dividing Even and Odd Numbers of Negative Factors
- Multiplying and Dividing in Scientific Notation
- Multiplying and Dividing Monomials 1
- Multiplying and Dividing Monomials 2
- Multiplying and Dividing Monomials 3
- Multiplying and Dividing Rational Expressions 1
- Multiplying and Dividing Rational Expressions 2
- Multiplying and Dividing Rational Expressions 3
- Multiplying and Dividing with Significant Figures
- Multiplying and Simplifying Rational Expressions
- Multiplying Binomials
- Multiplying Binomials With Radicals
- Multiplying by Multiples of 10
- Multiplying by Tens Word Problem
- Multiplying Challenging Decimals
- Multiplying Complex Numbers
- Multiplying Decimals
- Multiplying Decimals 3
- Multiplying Decimals: Place Value and Reordering
- Multiplying Fractions
- Multiplying Fractions (Old)
- Multiplying Fractions and Mixed Numbers
- Multiplying Fractions and Whole Numbers: Two Approaches
- Multiplying Fractions by Whole Numbers on the Number Line
- Multiplying Fractions Word Problem
- Multiplying Fractions Word Problem: Bike Ride
- Multiplying Fractions Word Problem: Drinking Milk
- Multiplying Fractions Word Problem: Laundry Detergent
- Multiplying Fractions Word Problem: Movie Marathon
- Multiplying Fractions Word Problem: Science Project
- Multiplying Fractions Word Problems ( ex 1)
- Multiplying in Scientific Notation
- Multiplying Mixed Numbers
- Multiplying Mixed Numbers 1 (ex1)
- Multiplying Monomials
- Multiplying Monomials by Polynomials
- Multiplying Multiples of 10
- Multiplying Multiples of Powers of 10
- Multiplying Negative and Positive Fractions
- Multiplying Negative Real Numbers
- Multiplying Polynomials
- Multiplying Polynomials 2
- Multiplying Polynomials 3
- Multiplying Polynomials1
- Multiplying Real Number Application
- Multiplying Two Fractions
- Multiplying Two Fractions Using a Number Line
- Multiplying Unit Fractions and Whole Numbers
- Multiplying Whole Numbers and Applications 1
- Multiplying Whole Numbers and Applications 2
- Multiplying Whole Numbers and Applications 3
- Multiplying Whole Numbers and Applications 4
- Multiplying Whole Numbers and Applications 5
- Multiplying Whole Numbers and Applications 6
- Multiplying Whole Numbers by 10
- Multiplying: 2-Digit Number x 1-Digit Number
- Multiplying: 2-Digit Number x 1-Digit Number (with Carrying)
- Multiplying: 2-Digit Numbers
- Multiplying: 2-Digit Numbers (Using the Distributive Property)
- Multiplying: 3-Digit Number x 1-Digit Number
- Multiplying: 3-Digit Number x 1-Digit Number (with Carrying)
- Multiplying: 4-Digit Number x 1 Digit Number (Using a Grid)
- Multiplying: 4-Digit Number x 1-Digit Number (with Carrying)
- Multiplying: Using an Area Model (Example 1)
- Multiplying: Using an Area Model (Example 2)
- Myosin and Actin
- Myron of Eleutherae, Discobolus (Discus Thrower)
- Naming Angles
- Napoleon and the War of the Fourth Coalition
- Napoleon and the War of the Third Coalition
- Napoleon and the Wars of the First and Second Coalitions
- Napoleon Forced to Abdicate
- Napoleon’s Peninsular Campaigns
- Natural Logarithm With a Calculator
- Natural Selection and the Owl Butterfly
- Navigation Word Problem
- Negative and Positive Exponents
- Negative Exponent Intuition
- Negative Externalities
- Negative Numbers Introduction
- Negative Numbers on the Number Line
- Negative Signs in Numerators and Denominators
- Negative Symbol as Opposite
- Nets of Polyhedra
- Neuronal Synapses (Chemical)
- New Operator Definitions
- Newton’s First Law of Motion
- Newton’s Second Law of Motion
- Newton’s Third Law of Motion
- Nicolas Poussin, Landscape with St. John and Rape of the Sabines
- Nike Adjusting Her Sandal
- Non-Linear Systems of Equations 1
- Non-Linear Systems of Equations 2
- Non-Linear Systems of Equations 3
- Normal and Inferior Goods
- Normal Colon Tissue
- Normal Force and Contact Force
- Normal Force in an Elevator
- Number Base Conversion Practice
- Number Line Addition and Subtraction
- Number Lines for Addition and Subtraction
- Number of Solutions to a Linear Equation (Example 1)
- Number of Solutions to a Linear Equation (Example 2)
- Number of Solutions to a Linear Equation (Example 3)
- Number Opposites
- Number Patterns: Interpreting and Graphing Relationships
- Number Patterns: Interpreting Relationships
- Number Patterns: Seeing Relationships
- Number Patterns: Visualizing Sequence Relationships
- Number Sets
- Number Sets 1
- Number Sets 2
- Number Sets 3
- Numerator and Denominator of a Fraction
- Object Image and Focal Distance Relationship (Proof of Formula)
- Object Image Height and Distance Relationship
- Officer on Horseback
- Oil Paint in Venice
- Oligopolies and Monopolistic Competition
- Oligopolies, Duopolies, Collusion and Cartels
- One-Step Equation Involving Fractions
- One-Step Inequalities
- One-Step Inequalities 2
- Open Market Operations and Quantitative Easing Overview
- Open-End Mutual Fund Redemptions
- Open-Ended Mutual Fund (Part 1)
- Open-Ended Mutual Funds
- Opportunity Cost
- Opposite of a Given Number
- Opposite of a Number
- Opposite of a Polynomial
- Optimal Angle for Projectile Part 1
- Optimal Angle for Projectile Part 2- Hangtime
- Optimal Angle for Projectile Part 3- Horizontal Distance as a Function of Angle (and Speed)
- Optimal Angle for Projectile Part 4- Finding the Optimal Angle and Distance with a bit of Calculus
- Optimal Point on Budget Line
- Option Expiration and Price
- Optional Calculus Proof to Show that MR has Twice Slopes of Demand
- Orbitals
- Order of Operations
- Order of Operations 1
- Order of Operations 2
- Order of Operations 2 (Old)
- Order of Operations with Exponents
- Ordered Pair Solutions of Equations
- Ordering Difference of Variables on a Number Line
- Ordering Fractions
- Ordering Fractions
- Ordering Lines by Length
- Ordering Negative Numbers
- Ordering Numeric Expressions
- Ordering Positive and Negative Rational Numbers
- Ordering Triangle Sides and Angles
- Origins of Algebra
- Other Periodic Table Trends
- Other Triangle Congruence Postulates
- Otto Dix, Portrait of Sylvia von Harden
- Overtaking Word Problem
- Overview of FAFSA and CSS PROFILE
- Overview of Fractional Reserve Banking
- Overview of the ACT
- Overview of the SAT
- Overview: Applying to College
- Overview: Exploring College Options
- Overview: Making High School Count
- Overview: Paying for College
- Oxidation and Reduction in Cellular Respiration
- Oxidation and Reduction Review from Biological Point of View
- Oxidative Phosphorylation and Chemiosmosis
- Ozone Layer and Eukaryotes Show Up in the Proterozoic Eon
- P/E Conundrum
- P/E Discussion
- Pablo Picasso, Les Demoiselles d’Avignon
- Pablo Picasso, Still-Life with Chair Caning
- Palace and Grave, Mycenae
- Pangaea
- Pantheon, The
- Parabola Focus and Directrix 1
- Parabolic Mirrors 2
- Parabolic Mirrors and Real Images
- Parallax in Observing Stars
- Parallel Line Equation
- Parallel Lines
- Parallel Lines 2
- Parallel lines 3
- Parallelogram on the Coordinate Plane
- Parametric Equations 1
- Parametric Equations 2
- Parametric Equations 3
- Parametric Equations 4
- Parsec Definition
- Parsing Gross Domestic Product
- Part 1 of Proof of Heron’s Formula
- Part 2 of the Proof of Heron’s Formula
- Partial Fraction Expansion 1
- Partial Fraction Expansion 2
- Partial Fraction Expansion 3
- Partial Pressure
- Partial Quotient Division
- Partial Quotient Method of Division 2
- Parts of a Cell
- Parts of a Circle
- Passed Bike Word Problem
- Passing Trains
- Pattern of US Cold War Interventions
- Patterns in Multiplication Tables
- Patterns in Raising 1 and -1 to Different Powers
- Patterns in Sequences 1
- Patterns in Sequences 2
- Paul Cezanne, Bathers (Les Grandes Baigneuses)
- Paul Cezanne, Still Life with Apples
- Paul Cezanne, The Large Bathers
- Paul Cezanne, The Red Rock
- Paul Gauguin, The Red Cow
- Paul Gauguin, Vision After the Sermon, or Jacob Wrestling with the Angel
- Paul Klee, Twittering Machine
- Paul Troost, House of (German) Art
- Payday Loans
- Paying Back Your Loans
- Paying Doctors
- Pegging the Yuan
- Percent and Decimals
- Percent Word Problem: Penguins at the Zoo
- Percent Word Problem: Recycled Cans
- Percentage of a Whole Number
- Percentage Tax on Hamburgers
- Perfect Competition
- Perfect Inelasticity and Perfect Elasticity of Demand
- Performing Arithmetic Calculations on Units of Volume
- Perimeter and Area Basics
- Perimeter and Area of a Non-Standard Polygon
- Perimeter and Unit Conversion
- Perimeter of a Polygon
- Perimeter of a Shape
- Perimeter Word Problem: Skating Rink
- Perimeter Word Problem: Tables
- Periodic Table Trends: Ionization Energy
- Permutations
- Permutations and Combinations 1
- Permutations and Combinations 2
- Permutations and Combinations 3
- Permutations and Combinations 4
- Perpendicular Line Slope
- Perpendicular Lines
- Perpendicular lines 2
- Perpendicular Radius Bisects Chord
- Personal Bankruptcy: Chapters 7 and 13
- Peter Paul Rubens, Arrival (or Disembarkation) of Marie de Medici at Marseilles
- Peter Paul Rubens, Elevation of the Cross
- Peter Paul Rubens, The Consequences of War
- Peter Paul Rubens, The Presentation of the Portrait of Marie de Medici
- pH of a Weak Acid
- pH of a Weak Base
- pH, pOH of Strong Acids and Bases
- Phase Diagrams
- Phases of Meiosis
- Phases of Mitosis
- Phillips Curve
- Photorespiration
- Photosynthesis
- Photosynthesis: Calvin Cycle
- Photosynthesis: Light Reactions 1
- Photosynthesis: Light Reactions and Photophosphorylation
- Picture Graphs
- Pierre-Auguste Renoir, La Loge
- Pierre-Auguste Renoir, Moulin de la Galette
- Pierre-Auguste Renoir, The Great Boulevards
- Pierre-Auguste Renoir, The Large Bathers
- Piet Mondrian, Composition No. II, with Red and Blue
- Pieter Bruegel the Elder, Hunters in the Snow (Winter)
- Pieter Bruegel the Elder, Peasant Wedding
- Pieter Bruegel the Elder, The Tower of Babel
- Pietro Cavallini, The Last Judgement
- pKa and pKb Relationship
- Place Value 1
- Place Value 2
- Place Value 3
- Place Value Blocks
- Place Value Example with 25
- Place Value Example with 42
- Place Value for Decimals Greater than One
- Place Value when Multiplying and Dividing by 10
- Place Value: Monkeys for a Party
- Placing Positive and Negative Decimals on a Number Line
- Plate Tectonics- Difference Between Crust and Lithosphere
- Plate Tectonics- Evidence of Plate Movement
- Plate Tectonics- Geological Features of Convergent Plate Boundaries
- Plates Moving Due to Convection in Mantle
- Plot Ordered Pairs
- Plotting (x, y) Relationships
- Plotting Decimals on a Number Line
- Plotting Projectile Displacement, Acceleration, and Velocity
- Point Line Distance and Angle Bisectors
- Point-slope and standard form
- Points on a Number Line
- Poisson Process 1
- Poisson Process 2
- Polar Coordinates 1
- Polar Coordinates 2
- Polar Coordinates 3
- Polyalphabetic Cipher
- Polynomial Divided by Monomial
- Polynomials 2
- Polynomials1
- Ponzi Schemes
- Positive Externalities
- Potassium-Argon (K-Ar) Dating
- Potential Energy Stored in a Spring
- Powers of 10: Patterns
- Powers of Fractions
- Powers of Zero
- Precession Causing Perihelion to Happen Later
- Precocious Puberty
- Present Value 2
- Present Value 3
- Present Value 4 (and Discounted Cash Flow)
- Price and Market Capitalization
- Price Behavior After Announced Acquisition
- Price Elasticity of Demand
- Price of Related Products and Demand
- Primaries and Caucuses
- Prime Factorization
- Prime Numbers
- Prisoners’ Dilemma and Nash Equilibrium
- Probability (part 2)
- Probability (part 3)
- Probability (part 4)
- Probability (part 5)
- Probability (part 6)
- Probability (part 7)
- Probability (part 8)
- Probability 1 Module Examples
- Probability and Combinations (part 2)
- Probability Density Functions
- Probability from Compound Sample Space
- Probability of Dependent Events
- Probability of Dependent Events 2
- Probability of More Complex outcome
- Probability using Combinations
- Probability with Playing Cards and Venn Diagrams
- Problem involving angle derived from square and circle
- Producer Surplus
- Product of Functions
- Production Possibilities Frontier
- Products and Exponents Raised to an Exponent Properties
- Professional Antigen Presenting Cells (APC) and MHC II complexes
- Projectile at an Angle
- Projectile Height Given Time
- Projectile Motion with Ordered Set Notation
- Projectile on an Incline
- Proof (Advanced) Field from Infinite Plate (Part 1)
- Proof (Advanced) Field from Infinite Plate (Part 2)
- Proof - Corresponding Angle Equivalence Implies Parallel Lines
- Proof - Diagonals of a Parallelogram Bisect Each Other
- Proof - Opposite Angles of Parallelogram Congruent
- Proof - Opposite Sides of Parallelogram Congruent
- Proof - Rhombus Area Half Product of Diagonal Length
- Proof - Rhombus Diagonals are Perpendicular Bisectors
- Proof - Sum of Measures of Angles in a Triangle are 180
- Proof - Triangle Altitudes are Concurrent (Orthocenter)
- Proof by Induction
- Proof-Vertical Angles are Equal
- Proof: A(log B) = log (B^A), log A - log B = log (A/B)
- Proof: cos(a+b) = (cos a)(cos b)-(sin a)(sin b)
- Proof: Hyperbola Foci
- Proof: Law of Sines
- Proof: lim (sin x)/x
- Proof: log a + log b = log ab
- Proof: S (or Entropy) is a Valid State Variable
- Proof: sin(a+b) = (cos a)(sin b) + (sin a)(cos b)
- Proof: U=(3/2)PV or U=(3/2)nRT
- Proof: Volume Ratios in a Carnot Cycle
- Proper and Improper Fractions
- Properties and Patterns for Multiplication
- Properties of Multiplication
- Properties of Whole Numbers
- Proportionality Between Side Length and Perimeter
- Proportionality Constant for Direct Variation
- Proportionality Word Problem: Bananas
- Proportionality Word Problem: Hot Dogs
- Proportionality Word Problem: Movie Ticket and Popcorn
- Proving that the Centroid is 2-3rds along the Median
- Punnett Square Fun
- Pure Numbers and Significant Digits
- Put as Insurance
- Put Payoff Diagram
- Put vs. Short and Leverage
- Put Writer Payoff Diagrams
- Put-Call Parity
- Put-Call Parity Arbitrage I
- Put-Call Parity Arbitrage II
- Put-Call Parity Clarification
- PV-diagrams and Expansion Work
- Pythagorean Theorem 1
- Pythagorean Theorem 2
- Pythagorean Theorem 3
- Pythagorean Theorem Application
- Pythagorean Theorem II
- Pythagorean Theorem Proof Using Similarity
- Quadrants of Coordinate Plane
- Quadratic Equation part 2
- Quadratic Equations in Standard Form
- Quadratic Formula (proof)
- Quadratic Formula 1
- Quadratic Formula 2
- Quadratic Formula 3
- Quadratic Functions 1
- Quadratic Functions 2
- Quadratic Functions 3
- Quadratic Inequalities
- Quadratic Inequalities (Visual Explanation)
- Quadrilateral Overview
- Quadrilateral Properties
- Quadrilaterals: Classifying Shapes
- Quadrilaterals: Find the Type
- Quadrilaterals: Kites as a Geometric Shape
- Quantitative Easing
- Quarrying and Carving Marble
- Quasar Correction
- Quasars
- Quasistatic and Reversible Processes
- Quotient of Functions
- Race Cars with Constant Speed Around Curve
- Rachel Ruysch, Fruit and Insects
- Radians and Degrees
- Radical Equation Application Problem
- Radical Equivalent to Rational Exponents
- Radical Equivalent to Rational Exponents 2
- Radius of Observable Universe
- Radius of Observable Universe (Correction)
- Raising a Number to the 0 and 1st Power
- Raising Money for a Startup
- Ramesses II, Egypt
- Random Predictions for 2060
- Range and Mid-Range
- Raphael, Alba Madonna
- Raphael, Galatea
- Raphael, Portrait of Pope Julius II
- Raphael, The School of Athens and the Disputa
- Rate Problem Involving Rational Equations
- Rate Problem Using Fractions
- Ratio problem with basic algebra (new HD)
- Ratio Word Problem: Boys to Girls
- Ratio Word Problem: Centimeters to Kilometers
- Rational Equations
- Rational Exponents and Exponent Laws
- Rational Inequalities
- Rational Inequalities 2
- Rational Number Word Problem with a Fraction and Percent
- Rational Number Word Problem with Proportions
- Rational Number Word Problem with Ratios
- Rational Number Word Problem: Decimals
- Rational Number Word Problem: Fractions and Units of Time
- Rational Number Word Problem: Money
- Rationalizing Denominators of Expressions
- Rationalizing Denominators With Conjugates
- Ratios as Fractions
- Ratios as Fractions in Simplest Form
- Raymond Duchamp-Villon, Horse
- Reactions in Equilibrium
- Reading a Bar Graph
- Reading Bar Charts
- Reading Bar Graphs
- Reading Box-and-Whisker Plots
- Reading line Graphs
- Reading Pictographs
- Reading Pie Graphs (Circle Graphs)
- Real and Nominal Return
- Real GDP and Nominal GDP
- Real GDP Driving Price
- Rearrange Formulas to Isolate Specific Variables
- Reasonable Samples
- Receiving an Admissions Decision: Admit, Deny or Waitlist
- Reciprocal of a Mixed Number
- Recognizing Angles
- Recognizing Direct and Inverse Variation
- Recognizing Divisibility
- Recognizing Fractions Greater than 1
- Recognizing Functions (Example 1)
- Recognizing Functions (Example 2)
- Recognizing Functions (Example 3)
- Recognizing Functions (Example 4)
- Recognizing Linear Functions
- Recognizing Odd and Even Functions
- Recognizing Prime Numbers
- Recognizing Rational and Irrational Numbers
- Recognizing Shapes
- Recognizing the Greater Number
- Reconciling Thermodynamic and State Definitions of Entropy
- Rectangle Area as Product of Dimensions
- Red Blood Cells
- Red Shift
- Redox Reactions
- Reflection on the Coordinate Plane
- Refraction and Snell’s Law
- Refraction in Water
- Refraction of Seismic Waves
- Regrouping Numbers into Various Place Values
- Regrouping When Adding a Two-Digit and a One-Digit Number
- Regrouping When Subtracting a One-Digit Number from a Two-Digit Number
- Regrouping Whole Number Place Values
- Regrouping Whole Numbers (Example 1)
- Regrouping Whole Numbers (Example 2)
- Regrouping Whole Numbers (Example 3)
- Relating Addition and Subtraction
- Relating Multiplication to Division
- Relation Between Nominal and Real Returns and Inflation
- Relations and Functions
- Relationship Between Angular Velocity and Speed
- Relationship Between Bond Prices and Interest Rates
- Relief from the Arch of Titus
- Rembrandt, Self-Portraits
- Rembrandt, The Anatomy Lesson of Dr. Tulp
- Rembrandt, The Night Watch
- Rene Magritte, The Treachery of Images (Ceci N’est Pas une Pipe)
- Rent Control and Deadweight Loss
- Renting vs. Buying (Detailed Analysis)
- Renting vs. Buying a Home
- Renting vs. Buying a Home (Part 2)
- Repeated Addition Word Problem
- Representation & Abstraction: Looking at Millais and Newman
- Representing a Number as a Decimal, Percent, and Fraction
- Representing a Number as a Decimal, Percent, and Fraction 2
- Representing and Comparing Rates
- Representing Functions as Graphs
- Repurchase Agreements (Repo Transactions)
- Requesting Letters of Recommendation
- Rethinking Three-Digit Addition for Mental Calculation
- Return on Capital
- Review of B cells, CD4 + T cells and CD8+ T cells
- Review of China US Currency Situation
- Review of Revenue and Cost Graphs for a Monopoly
- Review of Triangle Properties
- Rewriting a Fraction as a Decimal (Example 1)
- Rewriting a Fraction as a Decimal (Example 2)
- Rewriting a Fraction as a Decimal to the Hundredths Place
- Rewriting Fractions as Decimals
- Rhombus Diagonals
- Richard Redgrave, The Sempstress
- Right Triangles Inscribed in Circles (Proof)
- Risk and Reward Introduction
- Risks of Keynesian Thinking
- Ritual of the Bedside Exam
- ROA Discussion 1
- ROA Discussion 2
- Robert Motherwell, Elegy to the Spanish Republic No. 57
- Robert Rauschenberg, Bed
- Robert Smithson, Spiral Jetty
- Rogier van der Weyden, The Last Judgment
- Role of Phagocytes in Innate or Nonspecific Immunity
- Role of the Sarcoplasmic Reticulum in Muscle Cells
- Rosa Bonheur, Plowing in the Nivernais
- Rosa Bonheur, Sheep in the Highlands
- Rosetta Stone
- Rotation on the Coordinate Plane
- Roth IRAs
- Rounding Decimals
- Rounding to Estimate Differences
- Rounding to Estimate Sums
- Rounding to Estimate Sums 2
- Rounding to the Nearest 10
- Rounding to the Nearest 10 and 100
- Rounding to the Nearest 100
- Rounding Whole Numbers 1
- Rounding Whole Numbers 2
- Rounding Whole Numbers 3
- Rounding Whole Numbers: Missing Digit
- Roy Lichtenstein, Rouen Cathedral Set V
- Saint Mark’s Basilica, Venice
- Saint Peter’s Basilica, Vatican City
- Sal Khan’s Story: Applying to College
- Sal Khan’s Story: College Admissions
- Sal Khan’s Story: Exploring College Options
- Sal Khan’s Story: Making High School Count
- Sal Khan’s Story: Paying for College
- Sal Khan’s Story: Wrapping Up
- Salvador Dali, Metamorphosis of Narcissus
- Salvador Dali, The Persistence of Memory
- Sample Essay 1 with Admissions Feedback
- Sample Essay 2 with Admissions Feedback
- Sandro Botticelli, La Primavera (Allegory of Spring)
- Sandro Botticelli, The Birth of Venus
- SAT Math: Angles, Arc Lengths and Trig Functions (Basic Example)
- SAT Math: Angles, Arc Lengths and Trig Functions (Harder Example)
- SAT Math: Center, Spread and Shape of Distributions
- SAT Math: Circle Equations (Basic Example)
- SAT Math: Circle Equations (Harder Example)
- SAT Math: Circle Theorems (Basic Example)
- SAT Math: Circle Theorems (Harder Example)
- SAT Math: Complex Numbers (Basic Example)
- SAT Math: Complex Numbers (Harder Example)
- SAT Math: Congruence and Similarity (Basic Example)
- SAT Math: Congruence and Similarity (Harder Example)
- SAT Math: Data Collection and Conclusions (Basic Example)
- SAT Math: Data Collection and Conclusions (Harder Example)
- SAT Math: Data Inferences (Basic Example)
- SAT Math: Data Inferences (Harder Example)
- SAT Math: Function Notation (Basic Example)
- SAT Math: Function Notation (Harder Example)
- SAT Math: Graphing Linear Equations (Basic Example)
- SAT Math: Graphing Linear Equations (Harder Example)
- SAT Math: Interpreting Linear Functions (Basic Example)
- SAT Math: Interpreting Linear Functions (Harder Example)
- SAT Math: Interpreting Nonlinear Expressions (Basic Example)
- SAT Math: Interpreting Nonlinear Expressions (Harder Example)
- SAT Math: Isolating Quantities (Basic Example)
- SAT Math: Isolating Quantities (Harder Example)
- SAT Math: Key Features of Graphs (Basic Example)
- SAT Math: Key Features of Graphs (Harder Example)
- SAT Math: Linear and Exponential Growth (Basic Example)
- SAT Math: Linear and Exponential Growth (Harder Example)
- SAT Math: Linear and Quadratic Systems (Basic Example)
- SAT Math: Linear and Quadratic Systems (Harder Example)
- SAT Math: Linear Equation Word Problems
- SAT Math: Linear Function Word Problems (Basic Example)
- SAT Math: Linear Function Word Problems (Harder Example)
- SAT Math: Linear Inequality Word Problems (Basic Example)
- SAT Math: Linear Inequality Word Problems (Harder Example)
- SAT Math: Manipulating Quadratic and Exponential Expressions (Basic Example)
- SAT Math: Manipulating Quadratic and Exponential Expressions (Harder Example)
- SAT Math: Nonlinear Equation Graphs (Basic Example)
- SAT Math: Nonlinear Equation Graphs (Harder Example)
- SAT Math: Operations with Polynomials (Basic Example)
- SAT Math: Operations with Polynomials (Harder Example)
- SAT Math: Operations with Rational Expressions
- SAT Math: Percents (Basic Example)
- SAT Math: Percents (Harder Example)
- SAT Math: Polynomial Factors and Graphs (Basic Example)
- SAT Math: Polynomial Factors and Graphs (Harder Example)
- SAT Math: Quadratic and Exponential Word Problems (Basic Example)
- SAT Math: Quadratic and Exponential Word Problems (Harder Example)
- SAT Math: Radical and Rational Equations (Basic Example)
- SAT Math: Radical and Rational Equations (Harder Example)
- SAT Math: Radicals and Rational Exponents (Basic Example)
- SAT Math: Radicals and Rational Exponents (Harder Example)
- SAT Math: Ratios, Rates and Proportions (Basic Example)
- SAT Math: Ratios, Rates and Proportions (Harder Example)
- SAT Math: Right Triangle Geometry (Basic Example)
- SAT Math: Right Triangle Geometry (Harder Example)
- SAT Math: Right Triangle Word Problems (Basic Example)
- SAT Math: Right Triangle Word Problems (Harder Example)
- SAT Math: Scatter Plots (Basic Example)
- SAT Math: Scatter Plots (Harder Example)
- SAT Math: Solving Linear Equations and Linear Inequalities (Basic Example)
- SAT Math: Solving Linear Equations and Linear Inequalities (Harder Example)
- SAT Math: Solving Quadratic Equations (Basic Example)
- SAT Math: Solving Quadratic Equations (Harder Example)
- SAT Math: Solving Systems of Linear Equations (Basic Example)
- SAT Math: Solving Systems of Linear Equations (Harder Example)
- SAT Math: Structure in Expressions (Basic Example)
- SAT Math: Structure in Expressions (Harder Example)
- SAT Math: Systems of Linear Equations Word Problems
- SAT Math: Systems of Linear Inequalities Word Problems (Basic Example)
- SAT Math: Systems of Linear Inequalities Word Problems (Harder Example)
- SAT Math: Table Data (Basic Example)
- SAT Math: Table Data (Harder Example)
- SAT Math: Units (Basic Example)
- SAT Math: Units (Harder Example)
- SAT Math: Volume Word Problems (Basic Example)
- SAT Math: Volume Word Problems (Harder Example)
- SAT Reading: History and Social Studies - How-To Part 1
- SAT Reading: History and Social Studies - How-To Part 2
- SAT Reading: Literature - How-To Part 1
- SAT Reading: Literature - How-To Part 2
- SAT Reading: Science - How-To Part 1
- SAT Reading: Science - How-To Part 2
- SAT Reading: Social Science - How-To Part 1
- SAT Reading: Social Science - How-To Part 2
- SAT Writing: Argumentative - How-To Example
- SAT Writing: Informative - How-To Example
- SAT Writing: Narrative - How-To Example
- Scale Drawing Word Problem: Blueprint
- Scale of Distance to Closest Stars
- Scale of Earth and Sun
- Scale of Solar System
- Scale of the Galaxy
- Scale of the Large
- Scale of the Small
- Scaling Down a Triangle by Half
- Scatter Plot Word Problem: American Smoking Trends
- Scientific Notation (Old)
- Scientific notation 1
- Scientific notation 2
- Scientific notation 3
- Scientific Notation 3 (New)
- Scientific Notation Example 2
- Scientific Notation Examples
- Scientific Notation I
- Scientific Notation Word Problem: Red Blood Cells
- Searching for Scholarships
- Seasons Aren’t Dictated By Closeness to Sun
- Secondary Active Transport in the Nephron
- Seeing Multiplication as Scaling with Fractions
- Seismic Waves
- Selecting Your College
- Sequences and Series (part 1)
- Sequences and series (part 2)
- Series Sum Example
- Severe Contango Generally Bearish
- Sex-Linked Traits
- Shifts In Aggregate Demand
- Short Run Aggregate Supply
- Short-Run Oil Prices
- Shorting Stock
- Shorting Stock 2
- Sienese Art: Duccio, Simone Martini and Ambrogio Lorenzetti
- Significant Figures
- Similar Triangle Basics
- Similar Triangle Example Problems
- Similar triangles
- Similar triangles (part 2)
- Similar Triangles Corresponding Sides and Angles
- Similarity Example Problems
- Similarity example where same side plays different roles
- Similarity Postulates
- Simple Analysis of Cost per Job Saved from Stimulus
- Simple Equations
- Simple Fractional Reserve Accounting (Part 2)
- Simple Merger Arb with Share Acquisition
- Simple Probability
- Simple Quadratic Equation
- Simplifying a Complicated Expression into Scientific Notation
- Simplifying an Expression With Multiple Variables
- Simplifying Cube Roots
- Simplifying Expressions Involving Rational Numbers
- Simplifying Expressions with Exponents
- Simplifying Expressions with Exponents 2
- Simplifying Expressions with Exponents 3
- Simplifying First for Subtracting Rational Expressions
- Simplifying Multivariable Polynomial
- Simplifying Radical Expressions 1
- Simplifying Radical Expressions 2
- Simplifying Radical Expressions 3
- Simplifying Radicals
- Simplifying Rates and Ratios
- Simplifying Rational Expressions 1
- Simplifying Rational Expressions 2
- Simplifying Rational Expressions 3
- Simplifying Rational Expressions Example 2
- Simplifying Square Roots
- Simplifying Square Roots Comment Response
- Simply a Polynomial
- Skill of Describing, The
- Skip Counting by 100
- Skip Counting by 5
- Slice a Rectangular Pyramid
- Slope and Y-intercept Intuition
- Slope Example
- Slope of a line
- Slope of a Line 2
- Slope of a Line 3
- Snell’s Law Examples 1
- Snell’s Law Examples 2
- Social Security Intro
- Sodium Potassium Pump
- Solid Geometry Volume
- Solubility
- Solving a Consecutive Integer Problem Algebraically
- Solving a quadratic by factoring
- Solving Addition and Subtraction Word Problems Using a Number Line
- Solving and graphing linear inequalities in two variables 1
- Solving Application Problems Involving Units of Volume
- Solving Equations 1
- Solving Equations 2
- Solving Equations with the Distributive Property
- Solving Equations with the Distributive Property 2
- Solving Exponential Equations
- Solving Factored Equations
- Solving for a Variable
- Solving for a Variable 2
- Solving for an Angle
- Solving for the Missing Fraction
- Solving for Time
- Solving Inequalities
- Solving Logarithmic Equations
- Solving Logarithmic Equations
- Solving One-Step Equations
- Solving One-Step Equations 2
- Solving Percent Problems 2
- Solving Percent Problems 3
- Solving Problems with Bar Graphs
- Solving Problems with Bar Graphs
- Solving Problems with Pictographs
- Solving Quadratic Equations by Factoring
- Solving Quadratic Equations by Factoring 2
- Solving Quadratic Equations by Factoring 3
- Solving Quadratics by Factoring
- Solving Radical Equations
- Solving Radical Equations 1
- Solving Radical Equations 2
- Solving Radical Equations 3
- Solving Rational Equations 1
- Solving Rational Equations 2
- Solving Rational Equations 3
- Solving systems by elimination
- Solving systems by elimination 2
- Solving systems by elimination 3
- Solving systems by graphing
- Solving Systems by Graphing
- Solving systems by graphing 2
- Solving systems by graphing 3
- Solving systems by substitution 1
- Solving systems by substitution 2
- Solving systems by substitution 3
- Solving the Troll Riddle Visually
- SOPA and PIPA
- Sorting Absolute Values on the Number Line
- Soultions to Three Variable System
- Space Station Speed in Orbit
- Special Polynomials Products 1
- Special Products of Polynomials 1
- Special Products of Polynomials 2
- Special Products of Polynomials 3
- Species
- Specific Heat, Heat of Fusion and Vaporization
- Spectrophotometry Example
- Spectrophotometry Introduction
- Specular and Diffuse Reflection
- Specular and Diffuse Reflection 2
- Speed Translation
- Spring Potential Energy Example (Mistake in Math)
- Square a Binomial
- Square Root of a Decimal
- Squeeze Theorem
- SSS to Show a Radius is Perpendicular to a Chord that it Bisects
- Stagflation
- Standard of Ur
- Star Field and Nebula Images
- States of Matter
- States of Matter Follow-Up
- Static and Kinetic Friction Example
- Statistical Questions
- Steam-and-Leaf Plots
- Stellar Distance Using Parallax
- Stellar Parallax
- Stellar Parallax Clarification
- Stenosis, Ischemia and Heart Failure
- Stock Dilution
- Stoichiometry
- Stoichiometry Example Problem 1
- Stoichiometry Example Problem 2
- Stoichiometry of a Reaction in Solution
- Stoichiometry: Limiting Reagent
- Strokes
- Strong Acid Titration
- Structure of the Earth
- Student Story: Admissions Essay About a Formative Experience
- Student Story: Admissions Essay About a Meaningful Poem
- Student Story: Admissions Essay About a Past Mistake
- Student Story: Admissions Essay About Community Impact
- Student Story: Admissions Essay About Personal Identity
- Student Story: Admissions Interview
- Student Story: Applying for Scholarships
- Student Story: College Brings New Friends, Learning and Freedom
- Student Story: College Expands Opportunities
- Student Story: College Increases Confidence
- Student Story: College Offers Exposure to Diversity
- Student Story: Extracurriculars that Are a Passion
- Student Story: Extracurriculars that Are Leadership Opportunities
- Student Story: Extracurriculars that Are Nontraditional
- Student Story: Extracurriculars that Are Self Created
- Student Story: Extracurriculars that Carry Over from High School to College
- Student Story: High School Classes
- Student Story: Overcoming Anxiety About Not Fitting In as an Obstacle to College
- Student Story: Overcoming Cultural Obstacles to College
- Student Story: Overcoming Family Obstacles to College
- Student Story: Overcoming Financial Obstacles to College
- Student Story: Overcoming Immigration Obstacles to College
- Student Story: Overcoming Lack of High School Support as an Obstacle to College
- Student Story: Overcoming Social Obstacles to College
- Student Story: Overcoming the Financial Aid Process as an Obstacle to College
- Student Story: Prioritizing Financial Aid in the College Search
- Student Story: Prioritizing Financial Aid, Major and Location in the College Search
- Student Story: Prioritizing Location in the College Search
- Student Story: Prioritizing Size, Campus, Major and Selectivity in the College Search
- Student Story: Prioritizing Size, Selectivity, Diversity and Financial Aid in the College Search
- Student Story: Relying on Scholarships when Facing Immigration Challenges
- Student Story: Searching for Scholarships
- Student Story: Standardized Tests
- Student Story: Work Study as a Study Hall
- Student Story: Work Study as an Opportunity to Learn
- Substitution Method
- Substitution Method 2
- Substitution Method 3
- Substitution with Negative Numbers
- Subtracting 1 vs. Subtracting 10
- Subtracting 10 or 100
- Subtracting 14 - 6
- Subtracting and Simplifying Radicals
- Subtracting Complex Numbers
- Subtracting Decimals
- Subtracting Decimals (Example 1)
- Subtracting Decimals (Example 2)
- Subtracting Decimals (Old)
- Subtracting Decimals Word Problem
- Subtracting Fractions
- Subtracting Fractions (ex 1)
- Subtracting Fractions with Common Denominators (ex 1)
- Subtracting Fractions with Unlike Denominators
- Subtracting Fractions with Unlike Denominators Word Problem
- Subtracting Hundreds, Tens and Ones
- Subtracting in Scientific Notation
- Subtracting Mixed Numbers
- Subtracting Mixed Numbers 2
- Subtracting Mixed Numbers Introduction
- Subtracting Mixed Numbers with Regrouping
- Subtracting Mixed Numbers Word Problem
- Subtracting Polynomials
- Subtracting Polynomials With Multiple Variables
- Subtracting Rational Expressions
- Subtracting Real Numbers
- Subtracting Three-Digit Numbers Without Regrouping
- Subtracting Two-Digit Numbers Without Regrouping (Example 1)
- Subtracting Two-Digit Numbers Without Regrouping (Example 2)
- Subtracting Whole Numbers
- Subtracting with Regrouping
- Subtracting: Regrouping from Zero
- Subtracting: Regrouping Twice
- Subtracting: Three-Digit Numbers and Basic Regrouping
- Subtracting: Three-Digit Numbers and Regrouping
- Subtraction 2
- Subtraction 3: Introduction to Borrowing or Regrouping
- Subtraction With Borrowing or Regrouping
- Subtraction Word Problem
- Subtraction Word Problem Within 10
- Succeeding at the College Admissions Interview
- Sum of Consecutive Odd Integers
- Sum of Functions
- Sum of Interior Angles of a Polygon
- Sum of Logarithms With Same Base
- Sum of the exterior angles of convex polygon
- Supermassive Black Holes
- Supernova (Supernovae)
- Supernova Clarification
- Surface Area of a Box
- Surface Area of a Box Using a Net
- Suspensions, Colloids, and Solutions
- Sutton Hoo Ship Burial
- System of Inequalities Application
- Systemic Thinking About Cancer
- Systems and rate problems
- Systems and rate problems 2
- Systems and rate problems 3
- systems of equations
- Systems of Three Variables
- Systems of Three Variables 2
- Taking percentages
- Tau versus Pi
- Tax Deductions Introduction
- Tax Lever of Fiscal Policy
- Taxation and Dead Weight Loss
- Taxes and Perfectly Elastic Demand
- Taxes and Perfectly Inelastic Demand
- Taxes for Factoring in Negative Externalities
- Taxonomy and the Tree of Life
- Teens as Sums with 10
- Telling Time (Example 1)
- Telling Time (Example 2)
- Telling Time Problems with Number Lines
- Telling Time to the Nearest Minute (Unlabeled Clock)
- Tempera Paint
- Temperature Change Word Problem
- Temple of Portunus, Rome
- Tension (Part 2)
- Tension in an Accelerating System and Pie in the Face
- Term and Whole Life
- Term and Whole Life Insurance Policies
- Term Life Insurance and Death Probability
- Terms Coefficients and Exponents in a Polynomial
- Testing a Solution for a System of Equations
- Testing Congruence Through Transformations (Example 1)
- Testing Congruence Through Transformations (Example 2)
- Testing if a relationship is a function
- Testing Similarity Through Transformations
- Testing Solutions for a System of Inequalities
- Testing Solutions to Linear Equations
- Testing Whether Area Is Proportional to Side Length
- The Angle Game
- The Beauty of Algebra
- The Business Cycle
- The Discount Rate
- The Dot Product
- The Golden Ratio
- The Housing Price Conundrum
- The Kidney and Nephron
- The Lungs and Pulmonary System
- The Mohorovicic Seismic Discontinuity
- The Mole and Avogadro’s Number
- The Pythagorean Theorem
- The Rule of 72 for Compound Interest
- The unit circle definition of trigonometric function
- The Yield Curve
- The Zeroth Power
- Theodore Gericault, Raft of the Medusa
- Thermodynamic Entropy Definition Clarification
- Thermodynamics (Part 1)
- Thermodynamics (Part 2)
- Thermodynamics (Part 3)
- Thermodynamics (Part 4)
- Thermodynamics (Part 5)
- Thiago Asks: How Much Time Does a Goalkeeper Have to React to a Penalty Kick?
- Thinking About Probability
- Thinking About Shapes of Distributions
- Thinking About the Changing Values of Variables and Expressions
- Thinking About the Sign of Expressions
- Thomas Cole, The Oxbow
- Thomas Couture, Romans of the Decadence
- Thomas Malthus and Population Growth
- Three Equation Application Problem
- Three Points Defining a Circle
- Thrombo-emboli and Thromboembolisms
- Thutmose, Bust of Nefertiti
- Time Conversions
- Time Differences (Elapsed Time)
- Time Differences 1
- Time Differences in Different Time Zones
- Time Value of Money
- Time Word Problem: Puzzle
- Time Word Problem: Susan’s Break
- Time Word Problem: When to Leave to Get Home on Time
- Tintoretto, The Finding of the Body of Saint Mark
- Tintoretto, The Miracle of the Slave
- Titian, Bacchus and Ariadne
- Titian, Madonna of the Pesaro Family
- Titian, Pieta
- Titration Roundup
- Total Consumer Surplus as Area
- Total Displacement for Projectile
- Total Final Velocity for Projectile
- Total Internal Reflection
- Total Revenue and Elasticity
- Tour of Hadrian’s Villa, A
- Tour Through Ancient Rome in 320 C.E., A
- Traditional IRAs
- Tragedy of the Commons
- Trajan’s Forum
- Transitioning from Counting to Multiplying to Find Area
- Translating Numerical Expressions with Parentheses
- Translation on the Coordinate Plane
- Treasury Bond Prices and Yields
- Triangle Angle Example 1
- Triangle Angle Example 2
- Triangle Angle Example 3
- Triangle Area Proofs
- Triangle Medians and Centroids
- Triangle Medians and Centroids (2D Proof)
- Trig identities part 2
- Trig identities part 3
- Trigonometric Identities
- Trigonometric System Example
- Trigonometry Identity Review/Fun
- Trigonometry word problems (part 1)
- Trigonometry word problems (part 2)
- Troll, Tolls and Systems of Equations
- Tropomyosin and Troponin and their Role in Regulating Muscle Contraction
- Two column proof showing segments are perpendicular
- Two Passing Bicycles Word Problem
- Two-Way Frequency Tables and Venn Diagrams
- Two-Way Relative Frequency Tables
- Types of College Loans
- Types of Decay
- Types of Grants and Scholarships
- Types of Immune Responses: Innate and Adaptive. Humoral vs. Cell-Mediated
- Types of Indifference Curves
- U.S. Customary and Metric Units
- U.S. Customary Units: Distance
- U.S. Customary Units: Fluid Volume
- U.S. Customary Units: Weight
- Umbo (Otto Umbehr), The Roving Reporter
- Understanding Calendar Notation
- Understanding Division of Fractions
- Understanding Exponents
- Understanding Exponents 2
- Understanding Fractions as Division
- Understanding Liquid Volume (Capacity)
- Understanding Logical Statements 1
- Understanding Logical Statements 2
- Understanding Logical Statements 3
- Understanding Logical Statements 4
- Understanding Logical Statements Commentary
- Understanding Mass
- Understanding Place Value when Adding Ones
- Understanding Place Value when Adding Tens
- Understanding Place Value when Subtracting Ones
- Understanding Place Value when Subtracting Tens
- Understanding Proportions
- Understanding Slope
- Understanding Square Roots
- Unemployment
- Unemployment Rate Primer
- Unemployment Rate Primer (v2)
- Unicorn in Captivity, The
- Unit Circle Definition of Trig Functions
- Unit Conversion
- Unit Conversion Example: Drug Dosage
- Unit Conversion With Fractions
- Unit Conversion: Centimeters to Meters
- Unit Conversion: Minutes to Hours
- Unit Conversion: Ordering Metric Distances
- Unit Measurement Word Problem: Distance (U.S. Customary)
- Unit Vector Notation
- Unit Vector Notation (Part 2)
- Unit Vectors and Engineering Notation
- Units of Measurement Word Problem: Volume (Metric)
- Unknowns with Multiplication and Division
- Upper Bound on Forward Settlement Price
- US and Japanese Quantitative Easing
- US History Overiew 2: Reconstruction to the Great Depression
- US History Overview 1: Jamestown to the Civil War
- US History Overview 3: WWII to Vietnam
- Usain Bolt’s Average Speed
- Use Cases for Credit Default Swaps
- Using a Protractor
- Using Algebra to Find Measures of Angles Formed by a Transversal
- Using Factors and Multiples to Figure Out Days of the Week
- Using Fractions as Division to Create Mixed Numbers
- Using Multiple Logarithm Properties to Simplify
- Using Multiples of 10 to Calculate Quotients
- Using Reserves to Stabilize Currency
- Using Similar Triangles to Prove that Slope Is Constant for a Line
- Using the Pythagorean Theorem
- Using Trig Functions
- Using Trig Functions Part II
- Valance Electrons
- Van Der Waals Forces
- Vapor Pressure
- Vapor Pressure Example
- Variables and Expressions 1
- Variables Expressions and Equations
- Variation in a Species
- Vasily Kandinsky, Improvisation 28 (Second Version)
- Velocity of Money Rather Than Quantity Driving Prices
- Verifying Hedge with Futures Margin Mechanics
- Vi and Sal Explore How We Think About Scale
- Vi and Sal Talk About the Mysteries of Benford’s Law
- Vietnam War
- Viewing g as the Value of Earth’s Gravitational Field Near the Surface
- Vincent van Gogh, Portrait of Joseph Roulin
- Vincent van Gogh, Self-Portrait Dedicated to Paul Gauguin
- Vincent van Gogh, The Bedroom
- Virtual Image
- Viruses
- Visiting Campus
- Visual Understanding of Centripetal Acceleration Formula
- Visualizing Average Costs and Marginal Costs as Slope
- Visualizing Equivalent Fractions
- Visualizing Fraction Multiplication
- Visualizing Vectors in 2 Dimensions
- Visually Adding Fractions with Unlike Denominators
- Visually Converting from Tenths to Hundredths
- Visually Subtracting Fractions with Unlike Denominators
- Vitamin C and the Limeys
- Voltage
- Volume Conversions (U.S. Customary)
- Volume of a Composite Shape
- Volume of a Cone
- Volume of a Rectangular Prism or Box
- Volume of a Rectangular Prism: Fractional Cubes
- Volume of a Rectangular Prism: Fractional Dimensions
- Volume of a Rectangular Prism: Word Problem
- Volume of a Sphere
- Volume Word Problem: Water Tank
- Wassily Kandinsky, Composition VII
- Ways to Add Two-Digit Numbers
- Ways to Represent Data
- Weak Acid Titration
- Weaknesses of Fractional Reserve Lending
- Wealth Destruction 1
- Wealth Destruction 2
- Weight Conversions (U.S. Customary & Metric)
- What Are Terms, Factors and Coefficients in Algebraic Expressions?
- What Causes Precession and Other Orbital Changes
- What Is a Function?
- What is Inflation
- What It Means to Buy a Company’s Stock
- When Capitalism is Great and Not-so-great
- When the Source and the Wave Move at the Same Velocity
- White and Black Dwarfs
- Who Can Succeed in College?
- Whole Numbers as Fractions
- Why Borrowing Works
- Why Cepheids Pulsate
- Why Current and Capital Accounts Net Out
- Why Distance is Area under Velocity-Time Line
- Why Europe is Worried About Greece
- Why Gravity Gets So Strong Near Dense Objects
- Why Is that Important?: Looking at Jackson Pollock
- Why Lattice Multiplication Works
- Why Look at Art?
- Why Parties to Cartels Cheat
- Why S-Waves Only Travel in Solids
- William Dyce, Pegwell Bay, Kent
- William Hogarth, Marriage A-la-Mode
- William Holman Hunt, Our English Coasts (Strayed Sheep)
- William Holman Hunt, The Awakening Conscience
- Winslow Homer, The Fog Warning (Halibut Fishing)
- Winslow Homer, The Life Line
- Woodcuts and Etchings
- Work and Energy (Part 2)
- Work Done by Isothermic Process
- Work from Expansion
- Work/Energy Problem with Friction
- Working During College
- Would a Brick or a Feather Fall Faster
- Writing a Strong College Admissions Essay
- Writing an Equation for a Proportional Relationship
- Writing and using inequalities
- Writing and using inequalities 2
- Writing and using inequalities 3
- Writing Proportions
- X and Y intercepts
- X and Y intercepts 2
- Animation: Introduction to Animation
- Animation: Introduction to Animation: Bezier Curves
- Animation: Introduction to Animation: Getting to Know Rob Jensen
- Animation: Introduction to Animation: Linear Interpolation
- Animation: Introduction to Animation: Math Meets Artistry
- Animation: Introduction to Animation: Squash and Stretch
- Animation: Introduction to Animation: Straight-Ahead Animation
- Animation: Mathematics of Animation Curves
- Animation: Mathematics of Animation Curves: De Casteljau’s Algorithm
- Animation: Mathematics of Animation Curves: Mathematics of Linear Interpolation
- Animation: Mathematics of Animation Curves: Repeated Linear Interpolation
- Animation: Mathematics of Animation Curves: What Degree Are These Curves?
- Art of Storytelling, The: Character
- Art of Storytelling, The: Character: Advice to Storytellers
- Art of Storytelling, The: Character: Character Arc
- Art of Storytelling, The: Character: Character Development
- Art of Storytelling, The: Character: Internal vs. External Features
- Art of Storytelling, The: Character: Obstacles
- Art of Storytelling, The: Character: Stakes
- Art of Storytelling, The: Character: Wants vs. Needs
- Art of Storytelling, The: Film Grammar
- Art of Storytelling, The: Film Grammar: Advice for Storytellers
- Art of Storytelling, The: Film Grammar: Basic Shot Types
- Art of Storytelling, The: Film Grammar: Dynamic Shots
- Art of Storytelling, The: Film Grammar: Major & Minor Beats
- Art of Storytelling, The: Film Grammar: Storyboarding
- Art of Storytelling, The: Story Structure
- Art of Storytelling, The: Story Structure: Act 1
- Art of Storytelling, The: Story Structure: Act 2
- Art of Storytelling, The: Story Structure: Act 3
- Art of Storytelling, The: Story Structure: Advice to Storytellers
- Art of Storytelling, The: Story Structure: Introduction to Structure
- Art of Storytelling, The: Story Structure: Story Spine
- Art of Storytelling, The: Story Structure: Theme
- Art of Storytelling, The: Visual Language
- Art of Storytelling, The: Visual Language: Advice for Storytellers
- Art of Storytelling, The: Visual Language: Color
- Art of Storytelling, The: Visual Language: Introduction to Visual Language
- Art of Storytelling, The: Visual Language: Line
- Art of Storytelling, The: Visual Language: Motion
- Art of Storytelling, The: Visual Language: Shape
- Art of Storytelling, The: Visual Language: Space
- Art of Storytelling, The: Visual Language: Tone
- Art of Storytelling, The: We Are All Storytellers
- Art of Storytelling, The: We Are All Storytellers: Advice for Storytellers
- Art of Storytelling, The: We Are All Storytellers: Introduction to Storytelling
- Art of Storytelling, The: We Are All Storytellers: What If?
- Art of Storytelling, The: We Are All Storytellers: World & Character
- Art of Storytelling, The: We Are All Storytellers: Your Favorite Stories
- Art of Storytelling, The: We Are All Storytellers: Your Unique Perspective
- Character Modeling: Mathematics of Subdivision
- Character Modeling: Mathematics of Subdivision: Fun with Weights
- Character Modeling: Mathematics of Subdivision: Weighted Average of Three Points
- Character Modeling: Mathematics of Subdivision: Weighted Subdivision
- Character Modeling: Modeling with Subdivision Surfaces
- Character Modeling: Modeling with Subdivision Surfaces: Getting to Know Alonso Martinez
- Character Modeling: Modeling with Subdivision Surfaces: Split vs. Average
- Character Modeling: Modeling with Subdivision Surfaces: Subdivide Operation
- Character Modeling: Modeling with Subdivision Surfaces: Subdividing Your Own Designs
- Character Modeling: Modeling with Subdivision Surfaces: Subdivision in 3D
- Character Modeling: Modeling with Subdivision Surfaces: What Is Character Modeling?
- Color Science: Color Spaces
- Color Science: Color Spaces: CIE Chromaticity Diagram
- Color Science: Color Spaces: Color Grading
- Color Science: Color Spaces: HSL Color Space
- Color Science: Color Spaces: Introduction to Color Space
- Color Science: Color Spaces: Introduction to Gamuts
- Color Science: Introduction to Color
- Color Science: Introduction to Color: Color Contrast
- Color Science: Introduction to Color: Color Correction
- Color Science: Introduction to Color: Getting to Know Dominic Glynn
- Color Science: Introduction to Color: HSL Color Model
- Color Science: Introduction to Color: RGB Color Model
- Color Science: Introduction to Color: Spectrum of Light
- Color Science: Introduction to Color: What Is Color?
- Crowds: Building Crowds
- Crowds: Building Crowds: Casting Challenge
- Crowds: Building Crowds: Counting with Tables
- Crowds: Building Crowds: Counting with Trees
- Crowds: Building Crowds: Getting to Know Fran Kalal
- Crowds: Building Crowds: Introduction to Combinatorics
- Crowds: Building Crowds: Robot Combinations
- Crowds: Building Crowds: Tree Challenge
- Crowds: Counting Crowds
- Crowds: Counting Crowds: Binomial Coefficient
- Crowds: Counting Crowds: Calculating Factorials
- Crowds: Counting Crowds: Casting Problem
- Crowds: Counting Crowds: Does Order Matter?
- Crowds: Counting Crowds: Snake Bots
- Crowds: Counting Crowds: Two-Headed Robots
- Effects: Introduction to Particle Systems
- Effects: Introduction to Particle Systems: Create Water Surface Using Particles
- Effects: Introduction to Particle Systems: Effects Overview
- Effects: Introduction to Particle Systems: Getting to Know Matt Wong
- Effects: Introduction to Particle Systems: Simulating Water
- Effects: Introduction to Particle Systems: Smooth Collisions
- Effects: Introduction to Particle Systems: Understanding Particle Systems
- Effects: Introduction to Particle Systems: What Else Can You Make with Particle Systems?
- Effects: The Physics of Particle Systems
- Effects: The Physics of Particle Systems: Animating Particles
- Effects: The Physics of Particle Systems: Force and Acceleration
- Effects: The Physics of Particle Systems: Graphing Motion over Time
- Effects: The Physics of Particle Systems: Particle Collisions
- Effects: The Physics of Particle Systems: Understanding Net Forces
- Effects: The Physics of Particle Systems: Vector Addition
- Environment Modeling: Calculating Parabolas
- Environment Modeling: Calculating Parabolas: Completing the Proof
- Environment Modeling: Calculating Parabolas: Compute the Touching Point
- Environment Modeling: Calculating Parabolas: How Can We Prove This?
- Environment Modeling: Calculating Parabolas: Weighted Average of Two Points
- Environment Modeling: Calculating Parabolas: Where Is the Touching Point?
- Environment Modeling: Modeling Grass with Parabolas
- Environment Modeling: Modeling Grass with Parabolas: Animating Grass
- Environment Modeling: Modeling Grass with Parabolas: Getting to Know Tony DeRose
- Environment Modeling: Modeling Grass with Parabolas: Introduction to Subdivision Surfaces
- Environment Modeling: Modeling Grass with Parabolas: Midpoint Formula
- Environment Modeling: Modeling Grass with Parabolas: Modeling Grass
- Environment Modeling: Modeling Grass with Parabolas: Parabolic Arcs
- Environment Modeling: Modeling Grass with Parabolas: String Art
- Overview of Pixar in a Box
- Patterns: Geometry of Dinosaur Skin
- Patterns: Geometry of Dinosaur Skin: Distributing Sites Randomly
- Patterns: Geometry of Dinosaur Skin: Getting to Know Ana
- Patterns: Geometry of Dinosaur Skin: Getting to Know Beth
- Patterns: Geometry of Dinosaur Skin: Introduction to Patterns
- Patterns: Geometry of Dinosaur Skin: Modeling Dino Skin
- Patterns: Geometry of Dinosaur Skin: Voronoi Partition
- Patterns: Geometry of Dinosaur Skin: What Are Shading Packets?
- Patterns: Painting with Randomness
- Patterns: Painting with Randomness: Looking at Different Resolutions
- Patterns: Painting with Randomness: One-Dimensional Noise
- Patterns: Painting with Randomness: Painting Your Dino Skin
- Patterns: Painting with Randomness: Perlin Noise (1D)
- Patterns: Painting with Randomness: Perlin Noise (2D)
- Rendering: Mathematics of Rendering
- Rendering: Mathematics of Rendering: 3D Ray Tracing (Part 1)
- Rendering: Mathematics of Rendering: 3D Ray Tracing (Part 2)
- Rendering: Mathematics of Rendering: Calculate Intersection Point
- Rendering: Mathematics of Rendering: Parametric Form of a Ray
- Rendering: Mathematics of Rendering: Ray Tracing Intuition
- Rendering: Mathematics of Rendering: Using the Line Equation
- Rendering: Rendering 101
- Rendering: Rendering 101: Getting to Know Susan Fong
- Rendering: Rendering 101: Introduction to Rendering
- Rendering: Rendering 101: Light Rays
- Rendering: Rendering 101: Light Reflection
- Rendering: Rendering 101: Rendering Mike Wazowski
- Rendering: Rendering 101: What Is Ray Tracing?
- Rigging: Code a Character
- Rigging: Code a Character: Creating Objects
- Rigging: Code a Character: Functions
- Rigging: Code a Character: Putting Shapes Together
- Rigging: Introduction to Rigging
- Rigging: Introduction to Rigging: Getting to Know Brian Green
- Rigging: Introduction to Rigging: Make a Face
- Rigging: Introduction to Rigging: Putting Everything Together
- Rigging: Introduction to Rigging: Rotation Deformers
- Rigging: Introduction to Rigging: Scale Deformers
- Rigging: Introduction to Rigging: Translation Deformers
- Rigging: Introduction to Rigging: Welcome to Rigging
- Sets & Staging: Geometric Transformations
- Sets & Staging: Geometric Transformations : Introduction to Geometric Transformations
- Sets & Staging: Geometric Transformations: Commutativity
- Sets & Staging: Geometric Transformations: Composite Transformations
- Sets & Staging: Geometric Transformations: Coordinate Plane
- Sets & Staging: Geometric Transformations: Rotation
- Sets & Staging: Geometric Transformations: Scaling
- Sets & Staging: Geometric Transformations: Translation
- Sets & Staging: Mathematics of Rotation
- Sets & Staging: Mathematics of Rotation: Completing the Proof
- Sets & Staging: Mathematics of Rotation: Geometry of Rotation
- Sets & Staging: Mathematics of Rotation: How Do We Rotate Points?
- Simulation: Code Your Own Hair Simulation
- Simulation: Code Your Own Hair Simulation: 1D Spring-Mass System
- Simulation: Code Your Own Hair Simulation: 2D Spring-Mass System
- Simulation: Code Your Own Hair Simulation: Damping
- Simulation: Code Your Own Hair Simulation: Multiple Spring-Mass System
- Simulation: Code Your Own Hair Simulation: Starting with Particles
- Simulation: Hair Simulation 101
- Simulation: Hair Simulation 101: Adding Spring Stiffness and Damping
- Simulation: Hair Simulation 101: Case Study - The Good Dinosaur
- Simulation: Hair Simulation 101: Getting to Know Hayley Iben
- Simulation: Hair Simulation 101: Modeling Hair
- Simulation: Hair Simulation 101: Overview
- Simulation: Hair Simulation 101: Support Springs
- Simulation: Hair Simulation 101: Using a Spring-Mass System to Represent Hair
- Virtual Cameras: How Virtual Cameras Work
- Virtual Cameras: How Virtual Cameras Work: Camera Lenses
- Virtual Cameras: How Virtual Cameras Work: Depth of Field
- Virtual Cameras: How Virtual Cameras Work: Focal Distance
- Virtual Cameras: How Virtual Cameras Work: Getting to Know Eben Ostby
- Virtual Cameras: How Virtual Cameras Work: Introduction to Virtual Cameras
- Virtual Cameras: How Virtual Cameras Work: Storytelling with the Camera
- Virtual Cameras: How Virtual Cameras Work: What Is a Pinhole Camera?
- Virtual Cameras: Mathematics of Depth of Field
- Virtual Cameras: Mathematics of Depth of Field: Algebra of Focus
- Virtual Cameras: Mathematics of Depth of Field: Mathematics of Pinhole Cameras
- Virtual Cameras: Mathematics of Depth of Field: Out of Focus Objects
- Virtual Cameras: Mathematics of Depth of Field: Simple Lens Law
- Virtual Cameras: Mathematics of Depth of Field: Thin Lens Approximation
MENU