Never fall behind in math class again! Our short, 5-minute video lessons explain tough math concepts in a way that's simple for you to understand. Transcripts and captions are also available for your convenience. Each lesson is followed by a quiz, which ensures you've got the math all figured out.

Never fall behind in math class again!

Try it risk-freeHow to Solve Equations on a Calculator

3K

Radians & Degrees on a Calculator

2.9K

Trigonometry Functions & Exponentials on a Calculator

3.8K

Misleading Graphs: Definition & Examples

12K

Reading & Interpreting Pictographs

4.9K

Converting Numbers to Scientific Notation

16K

How to Use the Fundamental Counting Principle

20K

Tree Diagrams in Math: Definition & Examples

25K

Overview of Three-dimensional Shapes in Geometry

17K

Solving Word Problems: Steps & Examples

77K

How to Read and Interpret Scale Drawings

21K

Using the Number Line to Compare Decimals, Fractions, and Whole Numbers

47K

Organizing and Understanding Data with Tables & Schedules

13K

How to Perform Division: Steps & Examples

20K

How to Perform Multiplication: Steps & Examples

22K

How to Perform Subtraction: Steps & Examples

18K

How to Perform Addition: Steps & Examples

34K

Practice Problems for Calculating Ratios and Proportions

27K

Frequency & Relative Frequency Tables: Definition & Examples

327K

Linear Momentum: Definition, Equation, and Examples

255K

Applying Systems of Linear Equations to Market Equilibrium: Steps & Example

16K

Write the Standard Form of an Equation by Completing the Square

17K

Graphing & Solving Quadratic Inequalities: Examples & Process

29K

Graphing a System of Quadratic Inequalities: Examples & Process

9.2K

Analyzing the Graph of a Rational Function: Asymptotes, Domain, and Range

47K

Graphing Rational Functions That Have Linear Polynomials: Steps & Examples

4.3K

Graphing Rational Functions That Have Polynomials of Various Degrees: Steps & Examples

3.9K

Domain & Range of Composite Functions: Definition & Examples

59K

One-to-One Functions: Definitions and Examples

75K

What is a Power Function? - Definition, Equations, Graphs & Examples

143K

What is a Radical Function? - Definition, Equations & Graphs

36K

Fundamental Theorem of Algebra: Explanation and Example

23K

Factoring Polynomials Using Quadratic Form: Steps, Rules & Examples

18K

Using Rational & Complex Zeros to Write Polynomial Equations

192K

Remainder Theorem & Factor Theorem: Definition & Examples

179K

Finding Rational Zeros Using the Rational Zeros Theorem & Synthetic Division

35K

Writing the Inverse of Logarithmic Functions

30K

Basic Graphs & Shifted Graphs of Logarithmic Functions: Definition & Examples

21K

Using the Change-of-Base Formula for Logarithms: Definition & Example

19K

Transformation of Exponential Functions: Examples & Summary

95K

Using the Natural Base e: Definition & Overview

14K

Identifying the Line of Symmetry: Definition & Examples

55K

Experiments vs Observational Studies: Definition, Differences & Examples

234K

Applying Systems of Linear Equations to Breakeven Point: Steps & Example

52K

Using Quadratic Models to Find Minimum & Maximum Values: Definition, Steps & Example

307K

Graphing Sine and Cosine Transformations

22K

Even & Odd Functions: Definition & Examples

33K

Law of Cosines: Definition and Application

15K

The Double Angle Formula

9.1K

Using Unit Circles to Relate Right Triangles to Sine & Cosine

16K

Law of Sines: Definition and Application

17K

Graphing Sine and Cosine

13K

Special Right Triangles: Types and Properties

19K

Writing & Evaluating Algebraic Expressions for Two-Dimensional Geometric Figures

13K

How to Graph Reflections Across Axes, the Origin, and Line y=x

283K

How to Graph Logarithms: Transformations and Effects on Domain/Range

43K

Solving Rational Equations and Finding the Least Common Denominator

8.9K

Properties of Shapes: Triangles

14K

Properties of Shapes: Circles

16K

Scales of Measurement: Nominal, Ordinal, Interval & Ratio

387K

Using the Raw Score Method to Compute the Correlation Coefficient

12K

Correlational Research: Definition, Purpose & Examples

546K

Interpreting the Correlation Coefficient

19K

The Relationship Between Variables: Correlation Coefficient & Scatterplots

17K

Limitations of Correlational Research

41K

Solving Quadratic Inequalities Using Two Binomials

8.4K

Solving Linear Inequalities: Practice Problems

18K

How to Find and Apply The Slope of a Line

36K

Comparing and Ordering Decimals

40K

What is a Histogram in Math? - Definition & Examples

43K

Make Estimates and Predictions from Categorical Data

5.8K

Reading and Interpreting Line Graphs

47K

Summarizing Categorical Data using Tables

7.2K

Making Estimates and Predictions using Quantitative Data

6.8K

What is Quantitative Data? - Definition & Examples

89K

What is a Variable in Algebra?

56K

Practice Simplifying Algebraic Expressions

33K

Expressing Relationships as Algebraic Expressions

55K

Evaluating Simple Algebraic Expressions

49K

Calculations with Ratios and Proportions

51K

Comparing and Ordering Fractions

36K

What Is The Order of Operations in Math? - Definition & Examples

169K

Area of Complex Figures

21K

Properties of Congruent and Similar Shapes

43K

Properties of Shapes: Quadrilaterals, Parallelograms, Trapezoids, Polygons

167K

Contingency Table: Statistics, Probability & Examples

57K

Circles: Area and Circumference

51K

Optimization Problems in Calculus: Examples & Explanation

84K

Graphing Circles: Identifying the Formula, Center and Radius

27K

What is a Function? - Applying the Vertical Line Test

7.5K

What are Piecewise Functions?

23K

How to Find the Domain of Piecewise Functions

71K

How to Graph Piecewise Functions

17K

Translating Piecewise Functions

6.9K

What is a Linear Function? - Definition & Examples

168K

How to Find the Prime Factorization of a Number

359K

How to Find the Greatest Common Factor

55K

How to Use The Midpoint Formula

34K

How to Find the Least Common Multiple

55K

How to Use The Distance Formula

33K

Interpreting Graphs and Charts of Scientific Data: Practice Problems

58K

Unit Circle: Memorizing the First Quadrant

17K

Converting Between Radians and Degrees

23K

Graphing the Tangent Function: Amplitude, Period, Phase Shift & Vertical Shift

58K

How to Solve Trigonometric Equations for X

13K

List of the Basic Trig Identities

18K

Manipulating Functions and Solving Equations for Different Variables

20K

How to Evaluate Composite Functions

19K

Logical Fallacies: Hasty Generalization, Circular Reasoning, False Cause & Limited Choice

22K

Logical Fallacies: Appeals to Ignorance, Emotion or Popularity

17K

The Pythagorean Theorem: Practice and Application

41K

Angles and Triangles: Practice Problems

23K

Perimeter of Triangles and Rectangles

38K

Applications of Similar Triangles

57K

Types of Angles: Vertical, Corresponding, Alternate Interior & Others

299K

Parallel, Perpendicular and Transverse Lines

38K

How to Identify Similar Triangles

43K

Area of Triangles and Rectangles

36K

Properties of Shapes: Rectangles, Squares and Rhombuses

120K

How to Calculate Mean, Median, Mode & Range

234K

How to Calculate a Permutation

41K

Math Combinations: Formula and Example Problems

85K

How to Calculate Simple Conditional Probabilities

23K

Probability of Independent and Dependent Events

79K

Understanding Bar Graphs and Pie Charts

74K

How to Calculate the Probability of Combinations

399K

Either/Or Probability: Overlapping and Non-Overlapping Events

57K

Probability of Independent Events: The 'At Least One' Rule

194K

Calculating the Standard Deviation

49K

How to Calculate the Probability of Permutations

44K

How to Calculate Percent Increase with Relative & Cumulative Frequency Tables

23K

Probability of Simple, Compound and Complementary Events

80K

Critical Thinking and Logic in Mathematics

57K

Logical Math Connectors: Conjunctions and Disjunctions

32K

Propositions, Truth Values and Truth Tables

51K

Conditional Statements in Math

37K

How to Change Categorical Propositions to Standard Form

6K

Cardinality & Types of Subsets (Infinite, Finite, Equal, Empty)

30K

Mathematical Sets: Elements, Intersections & Unions

89K

Categorical Propositions: Subject, Predicate, Equivalent & Infinite Sets

8.4K

Venn Diagrams: Subset, Disjoint, Overlap, Intersection & Union

75K

How to Find the Cartesian Product

14K

What is a Two-Way Table?

46K

How to Find the Arc Length of a Function

5.8K

Arithmetic and Geometric Series: Practice Problems

24K

What Are the Different Parts of a Graph?

82K

What are the Different Types of Numbers?

430K

How to Add, Subtract, Multiply and Divide Functions

41K

What Is Domain and Range in a Function?

71K

How to Compose Functions

32K

Applying Function Operations Practice Problems

30K

Transformations: How to Shift Graphs on a Plane

34K

Inverse Functions

44K

Functions: Identification, Notation & Practice Problems

77K

Summation Notation and Mathematical Series

22K

How to Calculate a Geometric Series

14K

Finding and Classifying Geometric Sequences

25K

How to Calculate an Arithmetic Series

31K

What is a Mathematical Sequence?

44K

How to Find and Classify an Arithmetic Sequence

32K

How to Solve Logarithmic Equations

22K

Exponential Growth vs. Decay

52K

Practice Problems for Logarithmic Properties

22K

What Is an Exponential Function?

102K

Logarithmic Properties

22K

How to Evaluate Logarithms

71K

What is a Logarithm?

28K

How to Solve Exponential Equations

34K

What Is a Factorial?

15K

Binomial Theorem Practice Problems

12K

What is the Binomial Theorem?

13K

Factorial Practice Problems

17K

Practice Adding and Subtracting Rational Expressions

25K

Rational Equations: Practice Problems

14K

How to Multiply and Divide Rational Expressions

41K

How to Add and Subtract Rational Expressions

34K

How to Solve a Rational Equation

68K

Multiplying and Dividing Rational Expressions: Practice Problems

31K

How to Add, Subtract and Multiply Polynomials

47K

How to Use Synthetic Division to Divide Polynomials

30K

Dividing Polynomials with Long and Synthetic Division: Practice Problems

52K

How to Divide Polynomials with Long Division

96K

Rational Exponents

38K

Simplifying Expressions with Rational Exponents

90K

How to Simplify Expressions with Exponents

59K

How to Graph Cubics, Quartics, Quintics and Beyond

25K

What Are the Five Main Exponent Properties?

59K

How to Define a Zero and Negative Exponent

62K

How to Graph a Complex Number on the Complex Plane

21K

How to Add, Subtract and Multiply Complex Numbers

34K

How to Divide Complex Numbers

24K

What is an Imaginary Number?

43K

How to Solve Quadratics with Complex Numbers as the Solution

31K

How to Solve a Quadratic Equation by Factoring

33K

How to Solve Quadratics That Are Not in Standard Form

33K

How to Use the Quadratic Formula to Solve a Quadratic Equation

35K

How to Complete the Square

28K

Multiplying Binomials Using FOIL & the Area Method: Practice Problems

21K

Multiplying Binomials Using FOIL and the Area Method

27K

How to Factor Quadratic Equations: FOIL in Reverse

86K

Completing the Square Practice Problems

24K

Factoring Quadratic Equations: Polynomial Problems with a Non-1 Leading Coefficient

55K

Parabolas in Standard, Intercept, and Vertex Form

185K

What is a Parabola?

56K

What is an Inequality?

57K

How to Graph 1- and 2-Variable Inequalities

41K

Set Notation, Compound Inequalities, and Systems of Inequalities

30K

Graphing Inequalities: Practice Problems

37K

How to Solve and Graph an Absolute Value Inequality

34K

Solving and Graphing Absolute Value Inequalities: Practice Problems

33K

How to Evaluate Absolute Value Expressions

38K

How to Solve an Absolute Value Equation

32K

Solving Absolute Value Practice Problems

22K

What is an Absolute Value?

37K

How to Graph an Absolute Value and Do Transformations

43K

Graphing Absolute Value Equations: Dilations & Reflections

47K

How to Take a Determinant of a Matrix

29K

What is a Matrix?

40K

How Do I Use a System of Equations?

38K

What is a System of Equations?

55K

Abstract Algebraic Examples and Going from a Graph to a Rule

41K

Graphing Undefined Slope, Zero Slope and More

125K

What is a Linear Equation?

155K

Linear Equations: Intercepts, Standard Form and Graphing

91K

How to Write a Linear Equation

71K

Separation of Variables to Solve System Differential Equations

6.7K

Calculating Integrals of Simple Shapes

6.8K

How to Calculate Volumes Using Single Integrals

5.4K

How to Find Volumes of Revolution With Integration

10K

How to Solve Improper Integrals

4.4K

Partial Fractions: How to Factorize Fractions with Quadratic Denominators

11K

Integration and Dynamic Motion

4.8K

Differential Notation in Physics

4.6K

How to Find Simple Areas With Root Finding and Integration

2.5K

Using Integration By Parts

9.3K

How to Integrate Functions With Partial Fractions

5.6K

Anti-Derivatives: Calculating Indefinite Integrals of Polynomials

5.7K

How to Calculate Integrals of Trigonometric Functions

16K

Calculating Rate and Exponential Growth: The Population Dynamics Problem

60K

Related Rates: The Distance Between Moving Points Problem

9.7K

How to Solve Integrals Using Substitution

5.3K

Related Rates: The Draining Tank Problem

35K

How to Find Area Between Functions With Integration

4.8K

How to Calculate Integrals of Exponential Functions

7.2K

Substitution Techniques for Difficult Integrals

4.1K

How to Use Trigonometric Substitution to Solve Integrals

4.2K

Understanding Trigonometric Substitution

6.5K

How to Find the Limits of Riemann Sums

5.1K

Calculating Derivatives of Exponential Equations

6K

Using Limits to Calculate the Derivative

12K

Using the Chain Rule to Differentiate Complex Functions

15K

Applying L'Hopital's Rule in Simple Cases

2.9K

Data Mining: Function Properties from Derivatives

2.5K

What is L'Hopital's Rule?

5.7K

Derivatives: Graphical Representations

7.4K

Linear Properties of Definite Integrals

4K

Calculating Higher Order Derivatives

6.9K

How to Find Derivatives of Implicit Functions

8.8K

Linearization of Functions

5.7K

Graphing the Derivative from Any Function

7.2K

What It Means To Be 'Differentiable'

7.2K

Calculating Derivatives of Polynomial Equations

5.7K

Calculating Derivatives of Trigonometric Functions

9.7K

When to Use the Quotient Rule for Differentiation

32K

Optimizing Simple Systems

4K

What is the Mean Value Theorem?

7.5K

Indefinite Integrals as Anti Derivatives

5.3K

How to Determine Maximum and Minimum Values of a Graph

132K

Understanding Concavity and Inflection Points with Differentiation

12K

The Fundamental Theorem of Calculus

6.5K

Concavity and Inflection Points on Graphs

5.2K

Derivatives: The Formal Definition

9.9K

Applying L'Hopital's Rule in Complex Cases

6.7K

How to Identify and Draw Left, Right and Middle Riemann Sums

9.2K

Slopes and Rate of Change

12K

The Linear Properties of a Derivative

5.1K

What is Newton's Method?

4.1K

Applying the Rules of Differentiation to Calculate Derivatives

24K

Data Mining: Identifying Functions From Derivative Graphs

7.9K

Optimization and Differentiation

9.7K

Optimizing Complex Systems

4.4K

How to Use Riemann Sums to Calculate Integrals

9.7K

Definite Integrals: Definition

6.1K

Rolle's Theorem: A Special Case of the Mean Value Theorem

8.1K

How to Calculate Derivatives of Inverse Trigonometric Functions

8K

Velocity and the Rate of Change

12K

How to Estimate Function Values Using Linearization

4.1K

Differentiating Factored Polynomials: Product Rule and Expansion

8.3K

What is the Trapezoid Rule?

9.3K

Average Value Theorem

3.5K

Using Differentiation to Find Maximum and Minimum Values

40K

Non Differentiable Graphs of Derivatives

4.5K

How to Use Riemann Sums for Functions and Graphs

5.5K

Understanding Higher Order Derivatives Using Graphs

4.7K

How to Use Newton's Method to Find Roots of Equations

29K

How to Solve Visualizing Geometry Problems

18K

Squeeze Theorem: Definition and Examples

11K

Continuity in a Function

14K

Radians & Degrees on the CLEP Scientific Calculator

9.8K

Discontinuities in Functions and Graphs

18K