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!

Start free trialHow to Solve Equations on a Calculator

2.1K

Radians & Degrees on a Calculator

2.5K

Trigonometry Functions & Exponentials on a Calculator

2.6K

Misleading Graphs: Definition & Examples

10K

Reading & Interpreting Pictographs

4.5K

Converting Numbers to Scientific Notation

13K

How to Use the Fundamental Counting Principle

18K

Tree Diagrams in Math: Definition & Examples

20K

Overview of Three-dimensional Shapes in Geometry

15K

Solving Word Problems: Steps & Examples

66K

How to Read and Interpret Scale Drawings

18K

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

43K

Organizing and Understanding Data with Tables & Schedules

12K

How to Perform Division: Steps & Examples

17K

How to Perform Multiplication: Steps & Examples

18K

How to Perform Subtraction: Steps & Examples

15K

How to Perform Addition: Steps & Examples

29K

Practice Problems for Calculating Ratios and Proportions

23K

Frequency & Relative Frequency Tables: Definition & Examples

308K

Linear Momentum: Definition, Equation, and Examples

220K

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

14K

Write the Standard Form of an Equation by Completing the Square

15K

Graphing & Solving Quadratic Inequalities: Examples & Process

25K

Graphing a System of Quadratic Inequalities: Examples & Process

8.4K

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

44K

Graphing Rational Functions That Have Linear Polynomials: Steps & Examples

3.8K

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

3.4K

Domain & Range of Composite Functions: Definition & Examples

55K

One-to-One Functions: Definitions and Examples

56K

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

125K

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

33K

Fundamental Theorem of Algebra: Explanation and Example

19K

Factoring Polynomials Using Quadratic Form: Steps, Rules & Examples

16K

Using Rational & Complex Zeros to Write Polynomial Equations

175K

Remainder Theorem & Factor Theorem: Definition & Examples

160K

Finding Rational Zeros Using the Rational Zeros Theorem & Synthetic Division

30K

Writing the Inverse of Logarithmic Functions

24K

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

19K

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

18K

Transformation of Exponential Functions: Examples & Summary

86K

Using the Natural Base e: Definition & Overview

12K

Identifying the Line of Symmetry: Definition & Examples

50K

Experiments vs Observational Studies: Definition, Differences & Examples

209K

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

49K

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

247K

Graphing Sine and Cosine Transformations

20K

Even & Odd Functions: Definition & Examples

31K

Law of Cosines: Definition and Application

13K

The Double Angle Formula

8.2K

Using Unit Circles to Relate Right Triangles to Sine & Cosine

15K

Law of Sines: Definition and Application

16K

Graphing Sine and Cosine

12K

Special Right Triangles: Types and Properties

15K

Writing & Evaluating Algebraic Expressions for Two-Dimensional Geometric Figures

12K

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

262K

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

42K

Solving Rational Equations and Finding the Least Common Denominator

8.3K

Properties of Shapes: Triangles

13K

Properties of Shapes: Circles

15K

Scales of Measurement: Nominal, Ordinal, Interval & Ratio

371K

Using the Raw Score Method to Compute the Correlation Coefficient

10K

Correlational Research: Definition, Purpose & Examples

514K

Interpreting the Correlation Coefficient

18K

The Relationship Between Variables: Correlation Coefficient & Scatterplots

16K

Limitations of Correlational Research

39K

Solving Quadratic Inequalities Using Two Binomials

7.3K

Solving Linear Inequalities: Practice Problems

14K

How to Find and Apply The Slope of a Line

30K

Comparing and Ordering Decimals

37K

What is a Histogram in Math? - Definition & Examples

39K

Make Estimates and Predictions from Categorical Data

5.2K

Reading and Interpreting Line Graphs

43K

Summarizing Categorical Data using Tables

6.6K

Making Estimates and Predictions using Quantitative Data

6.3K

What is Quantitative Data? - Definition & Examples

79K

What is a Variable in Algebra?

50K

Practice Simplifying Algebraic Expressions

26K

Expressing Relationships as Algebraic Expressions

47K

Evaluating Simple Algebraic Expressions

43K

Calculations with Ratios and Proportions

44K

Comparing and Ordering Fractions

31K

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

140K

Area of Complex Figures

18K

Properties of Congruent and Similar Shapes

39K

Properties of Shapes: Quadrilaterals, Parallelograms, Trapezoids, Polygons

160K

Contingency Table: Statistics, Probability & Examples

53K

Circles: Area and Circumference

47K

Optimization Problems in Calculus: Examples & Explanation

81K

Graphing Circles: Identifying the Formula, Center and Radius

26K

What is a Function? - Applying the Vertical Line Test

6.4K

What are Piecewise Functions?

20K

How to Find the Domain of Piecewise Functions

62K

How to Graph Piecewise Functions

14K

Translating Piecewise Functions

5.8K

What is a Linear Function? - Definition & Examples

156K

How to Find the Prime Factorization of a Number

292K

How to Find the Greatest Common Factor

49K

How to Use The Midpoint Formula

30K

How to Find the Least Common Multiple

49K

How to Use The Distance Formula

29K

Interpreting Graphs and Charts of Scientific Data: Practice Problems

53K

Unit Circle: Memorizing the First Quadrant

15K

Converting Between Radians and Degrees

20K

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

55K

How to Solve Trigonometric Equations for X

12K

List of the Basic Trig Identities

16K

Manipulating Functions and Solving Equations for Different Variables

17K

How to Evaluate Composite Functions

16K

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

20K

Logical Fallacies: Appeals to Ignorance, Emotion or Popularity

15K

The Pythagorean Theorem: Practice and Application

36K

Angles and Triangles: Practice Problems

19K

Perimeter of Triangles and Rectangles

34K

Applications of Similar Triangles

52K

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

265K

Parallel, Perpendicular and Transverse Lines

34K

How to Identify Similar Triangles

40K

Area of Triangles and Rectangles

32K

Properties of Shapes: Rectangles, Squares and Rhombuses

113K

How to Calculate Mean, Median, Mode & Range

198K

How to Calculate a Permutation

31K

Math Combinations: Formula and Example Problems

78K

How to Calculate Simple Conditional Probabilities

20K

Probability of Independent and Dependent Events

73K

Understanding Bar Graphs and Pie Charts

67K

How to Calculate the Probability of Combinations

332K

Either/Or Probability: Overlapping and Non-Overlapping Events

51K

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

178K

Calculating the Standard Deviation

45K

How to Calculate the Probability of Permutations

38K

How to Calculate Percent Increase with Relative & Cumulative Frequency Tables

21K

Probability of Simple, Compound and Complementary Events

73K

Critical Thinking and Logic in Mathematics

50K

Logical Math Connectors: Conjunctions and Disjunctions

27K

Propositions, Truth Values and Truth Tables

44K

Conditional Statements in Math

32K

How to Change Categorical Propositions to Standard Form

5.1K

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

28K

Mathematical Sets: Elements, Intersections & Unions

84K

Categorical Propositions: Subject, Predicate, Equivalent & Infinite Sets

7.6K

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

68K

How to Find the Cartesian Product

14K

What is a Two-Way Table?

42K

How to Find the Arc Length of a Function

5.2K

Arithmetic and Geometric Series: Practice Problems

22K

What Are the Different Parts of a Graph?

74K

What are the Different Types of Numbers?

396K

How to Add, Subtract, Multiply and Divide Functions

35K

What Is Domain and Range in a Function?

64K

How to Compose Functions

28K

Applying Function Operations Practice Problems

25K

Transformations: How to Shift Graphs on a Plane

30K

Inverse Functions

37K

Functions: Identification, Notation & Practice Problems

71K

Summation Notation and Mathematical Series

20K

How to Calculate a Geometric Series

12K

Finding and Classifying Geometric Sequences

23K

How to Calculate an Arithmetic Series

29K

What is a Mathematical Sequence?

40K

How to Find and Classify an Arithmetic Sequence

28K

How to Solve Logarithmic Equations

19K

Exponential Growth vs. Decay

47K

Practice Problems for Logarithmic Properties

19K

What Is an Exponential Function?

86K

Logarithmic Properties

20K

How to Evaluate Logarithms

66K

What is a Logarithm?

26K

How to Solve Exponential Equations

30K

What Is a Factorial?

13K

Binomial Theorem Practice Problems

11K

What is the Binomial Theorem?

11K

Factorial Practice Problems

15K

Practice Adding and Subtracting Rational Expressions

21K

Rational Equations: Practice Problems

12K

How to Multiply and Divide Rational Expressions

36K

How to Add and Subtract Rational Expressions

29K

How to Solve a Rational Equation

53K

Multiplying and Dividing Rational Expressions: Practice Problems

26K

How to Add, Subtract and Multiply Polynomials

42K

How to Use Synthetic Division to Divide Polynomials

26K

Dividing Polynomials with Long and Synthetic Division: Practice Problems

48K

How to Divide Polynomials with Long Division

87K

Rational Exponents

33K

Simplifying Expressions with Rational Exponents

80K

How to Simplify Expressions with Exponents

48K

How to Graph Cubics, Quartics, Quintics and Beyond

22K

What Are the Five Main Exponent Properties?

49K

How to Define a Zero and Negative Exponent

56K

How to Graph a Complex Number on the Complex Plane

19K

How to Add, Subtract and Multiply Complex Numbers

30K

How to Divide Complex Numbers

21K

What is an Imaginary Number?

38K

How to Solve Quadratics with Complex Numbers as the Solution

28K

How to Solve a Quadratic Equation by Factoring

29K

How to Solve Quadratics That Are Not in Standard Form

29K

How to Use the Quadratic Formula to Solve a Quadratic Equation

31K

How to Complete the Square

25K

Multiplying Binomials Using FOIL & the Area Method: Practice Problems

19K

Multiplying Binomials Using FOIL and the Area Method

24K

How to Factor Quadratic Equations: FOIL in Reverse

80K

Completing the Square Practice Problems

21K

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

52K

Parabolas in Standard, Intercept, and Vertex Form

170K

What is a Parabola?

52K

What is an Inequality?

50K

How to Graph 1- and 2-Variable Inequalities

36K

Set Notation, Compound Inequalities, and Systems of Inequalities

26K

Graphing Inequalities: Practice Problems

31K

How to Solve and Graph an Absolute Value Inequality

29K

Solving and Graphing Absolute Value Inequalities: Practice Problems

29K

How to Evaluate Absolute Value Expressions

33K

How to Solve an Absolute Value Equation

28K

Solving Absolute Value Practice Problems

18K

What is an Absolute Value?

33K

How to Graph an Absolute Value and Do Transformations

38K

Graphing Absolute Value Equations: Dilations & Reflections

43K

How to Take a Determinant of a Matrix

25K

What is a Matrix?

36K

How Do I Use a System of Equations?

33K

What is a System of Equations?

48K

Abstract Algebraic Examples and Going from a Graph to a Rule

37K

Graphing Undefined Slope, Zero Slope and More

113K

What is a Linear Equation?

140K

Linear Equations: Intercepts, Standard Form and Graphing

82K

How to Write a Linear Equation

63K

Separation of Variables to Solve System Differential Equations

6.1K

Calculating Integrals of Simple Shapes

6.1K

How to Calculate Volumes Using Single Integrals

5.1K

How to Find Volumes of Revolution With Integration

9.5K

How to Solve Improper Integrals

4K

Partial Fractions: How to Factorize Fractions with Quadratic Denominators

9.6K

Integration and Dynamic Motion

4.4K

Differential Notation in Physics

4.3K

How to Find Simple Areas With Root Finding and Integration

2.3K

Using Integration By Parts

8.6K

How to Integrate Functions With Partial Fractions

5.2K

Anti-Derivatives: Calculating Indefinite Integrals of Polynomials

5.2K

How to Calculate Integrals of Trigonometric Functions

16K

Calculating Rate and Exponential Growth: The Population Dynamics Problem

54K

Related Rates: The Distance Between Moving Points Problem

8.6K

How to Solve Integrals Using Substitution

4.8K

Related Rates: The Draining Tank Problem

33K

How to Find Area Between Functions With Integration

4.5K

How to Calculate Integrals of Exponential Functions

6.6K

Substitution Techniques for Difficult Integrals

3.6K

How to Use Trigonometric Substitution to Solve Integrals

3.8K

Understanding Trigonometric Substitution

6K

How to Find the Limits of Riemann Sums

4.5K

Calculating Derivatives of Exponential Equations

5.4K

Using Limits to Calculate the Derivative

10K

Using the Chain Rule to Differentiate Complex Functions

13K

Applying L'Hopital's Rule in Simple Cases

2.5K

Data Mining: Function Properties from Derivatives

2.3K

What is L'Hopital's Rule?

5.1K

Derivatives: Graphical Representations

6.7K

Linear Properties of Definite Integrals

3.6K

Calculating Higher Order Derivatives

6.1K

How to Find Derivatives of Implicit Functions

8.1K

Linearization of Functions

5.1K

Graphing the Derivative from Any Function

6.4K

What It Means To Be 'Differentiable'

6.4K

Calculating Derivatives of Polynomial Equations

5.1K

Calculating Derivatives of Trigonometric Functions

8.8K

When to Use the Quotient Rule for Differentiation

26K

Optimizing Simple Systems

3.5K

What is the Mean Value Theorem?

6.5K

Indefinite Integrals as Anti Derivatives

4.8K

How to Determine Maximum and Minimum Values of a Graph

125K

Understanding Concavity and Inflection Points with Differentiation

11K

The Fundamental Theorem of Calculus

5.8K

Concavity and Inflection Points on Graphs

4.6K

Derivatives: The Formal Definition

8.6K

Applying L'Hopital's Rule in Complex Cases

5.9K

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

8.5K

Slopes and Rate of Change

10K

The Linear Properties of a Derivative

4.5K

What is Newton's Method?

3.7K

Applying the Rules of Differentiation to Calculate Derivatives

23K

Data Mining: Identifying Functions From Derivative Graphs

7.5K

Optimization and Differentiation

8.7K

Optimizing Complex Systems

3.9K

How to Use Riemann Sums to Calculate Integrals

8.9K

Definite Integrals: Definition

5.6K

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

7K

How to Calculate Derivatives of Inverse Trigonometric Functions

7.1K

Velocity and the Rate of Change

10K

How to Estimate Function Values Using Linearization

3.6K

Differentiating Factored Polynomials: Product Rule and Expansion

7.4K

What is the Trapezoid Rule?

8.5K

Average Value Theorem

3K

Using Differentiation to Find Maximum and Minimum Values

37K

Non Differentiable Graphs of Derivatives

4K

How to Use Riemann Sums for Functions and Graphs

4.9K

Understanding Higher Order Derivatives Using Graphs

4.2K

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

25K

How to Solve Visualizing Geometry Problems

15K

Squeeze Theorem: Definition and Examples

10K

Continuity in a Function

12K

Radians & Degrees on the CLEP Scientific Calculator

9.5K

Discontinuities in Functions and Graphs

16K