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

2.6K

Radians & Degrees on a Calculator

2.7K

Trigonometry Functions & Exponentials on a Calculator

3.3K

Misleading Graphs: Definition & Examples

11K

Reading & Interpreting Pictographs

4.7K

Converting Numbers to Scientific Notation

15K

How to Use the Fundamental Counting Principle

19K

Tree Diagrams in Math: Definition & Examples

22K

Overview of Three-dimensional Shapes in Geometry

16K

Solving Word Problems: Steps & Examples

72K

How to Read and Interpret Scale Drawings

20K

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

45K

Organizing and Understanding Data with Tables & Schedules

13K

How to Perform Division: Steps & Examples

19K

How to Perform Multiplication: Steps & Examples

20K

How to Perform Subtraction: Steps & Examples

17K

How to Perform Addition: Steps & Examples

32K

Practice Problems for Calculating Ratios and Proportions

25K

Frequency & Relative Frequency Tables: Definition & Examples

318K

Linear Momentum: Definition, Equation, and Examples

236K

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

15K

Write the Standard Form of an Equation by Completing the Square

16K

Graphing & Solving Quadratic Inequalities: Examples & Process

27K

Graphing a System of Quadratic Inequalities: Examples & Process

8.8K

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

46K

Graphing Rational Functions That Have Linear Polynomials: Steps & Examples

4.1K

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

3.7K

Domain & Range of Composite Functions: Definition & Examples

57K

One-to-One Functions: Definitions and Examples

67K

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

136K

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

35K

Fundamental Theorem of Algebra: Explanation and Example

21K

Factoring Polynomials Using Quadratic Form: Steps, Rules & Examples

17K

Using Rational & Complex Zeros to Write Polynomial Equations

182K

Remainder Theorem & Factor Theorem: Definition & Examples

170K

Finding Rational Zeros Using the Rational Zeros Theorem & Synthetic Division

32K

Writing the Inverse of Logarithmic Functions

27K

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

20K

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

19K

Transformation of Exponential Functions: Examples & Summary

91K

Using the Natural Base e: Definition & Overview

13K

Identifying the Line of Symmetry: Definition & Examples

53K

Experiments vs Observational Studies: Definition, Differences & Examples

225K

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

51K

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

275K

Graphing Sine and Cosine Transformations

21K

Even & Odd Functions: Definition & Examples

32K

Law of Cosines: Definition and Application

14K

The Double Angle Formula

8.6K

Using Unit Circles to Relate Right Triangles to Sine & Cosine

15K

Law of Sines: Definition and Application

17K

Graphing Sine and Cosine

13K

Special Right Triangles: Types and Properties

17K

Writing & Evaluating Algebraic Expressions for Two-Dimensional Geometric Figures

13K

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

274K

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

42K

Solving Rational Equations and Finding the Least Common Denominator

8.6K

Properties of Shapes: Triangles

13K

Properties of Shapes: Circles

15K

Scales of Measurement: Nominal, Ordinal, Interval & Ratio

379K

Using the Raw Score Method to Compute the Correlation Coefficient

11K

Correlational Research: Definition, Purpose & Examples

532K

Interpreting the Correlation Coefficient

18K

The Relationship Between Variables: Correlation Coefficient & Scatterplots

17K

Limitations of Correlational Research

40K

Solving Quadratic Inequalities Using Two Binomials

8K

Solving Linear Inequalities: Practice Problems

16K

How to Find and Apply The Slope of a Line

33K

Comparing and Ordering Decimals

39K

What is a Histogram in Math? - Definition & Examples

41K

Make Estimates and Predictions from Categorical Data

5.5K

Reading and Interpreting Line Graphs

45K

Summarizing Categorical Data using Tables

6.9K

Making Estimates and Predictions using Quantitative Data

6.6K

What is Quantitative Data? - Definition & Examples

85K

What is a Variable in Algebra?

53K

Practice Simplifying Algebraic Expressions

30K

Expressing Relationships as Algebraic Expressions

51K

Evaluating Simple Algebraic Expressions

46K

Calculations with Ratios and Proportions

47K

Comparing and Ordering Fractions

34K

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

158K

Area of Complex Figures

20K

Properties of Congruent and Similar Shapes

41K

Properties of Shapes: Quadrilaterals, Parallelograms, Trapezoids, Polygons

163K

Contingency Table: Statistics, Probability & Examples

55K

Circles: Area and Circumference

49K

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

6.9K

What are Piecewise Functions?

21K

How to Find the Domain of Piecewise Functions

69K

How to Graph Piecewise Functions

15K

Translating Piecewise Functions

6.4K

What is a Linear Function? - Definition & Examples

163K

How to Find the Prime Factorization of a Number

336K

How to Find the Greatest Common Factor

53K

How to Use The Midpoint Formula

33K

How to Find the Least Common Multiple

52K

How to Use The Distance Formula

31K

Interpreting Graphs and Charts of Scientific Data: Practice Problems

56K

Unit Circle: Memorizing the First Quadrant

16K

Converting Between Radians and Degrees

22K

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

57K

How to Solve Trigonometric Equations for X

12K

List of the Basic Trig Identities

17K

Manipulating Functions and Solving Equations for Different Variables

19K

How to Evaluate Composite Functions

18K

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

21K

Logical Fallacies: Appeals to Ignorance, Emotion or Popularity

16K

The Pythagorean Theorem: Practice and Application

39K

Angles and Triangles: Practice Problems

21K

Perimeter of Triangles and Rectangles

36K

Applications of Similar Triangles

55K

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

283K

Parallel, Perpendicular and Transverse Lines

36K

How to Identify Similar Triangles

42K

Area of Triangles and Rectangles

35K

Properties of Shapes: Rectangles, Squares and Rhombuses

116K

How to Calculate Mean, Median, Mode & Range

213K

How to Calculate a Permutation

36K

Math Combinations: Formula and Example Problems

82K

How to Calculate Simple Conditional Probabilities

22K

Probability of Independent and Dependent Events

76K

Understanding Bar Graphs and Pie Charts

71K

How to Calculate the Probability of Combinations

359K

Either/Or Probability: Overlapping and Non-Overlapping Events

54K

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

184K

Calculating the Standard Deviation

47K

How to Calculate the Probability of Permutations

41K

How to Calculate Percent Increase with Relative & Cumulative Frequency Tables

22K

Probability of Simple, Compound and Complementary Events

77K

Critical Thinking and Logic in Mathematics

54K

Logical Math Connectors: Conjunctions and Disjunctions

30K

Propositions, Truth Values and Truth Tables

49K

Conditional Statements in Math

35K

How to Change Categorical Propositions to Standard Form

5.6K

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

29K

Mathematical Sets: Elements, Intersections & Unions

87K

Categorical Propositions: Subject, Predicate, Equivalent & Infinite Sets

8K

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

72K

How to Find the Cartesian Product

14K

What is a Two-Way Table?

44K

How to Find the Arc Length of a Function

5.6K

Arithmetic and Geometric Series: Practice Problems

23K

What Are the Different Parts of a Graph?

78K

What are the Different Types of Numbers?

416K

How to Add, Subtract, Multiply and Divide Functions

39K

What Is Domain and Range in a Function?

68K

How to Compose Functions

30K

Applying Function Operations Practice Problems

28K

Transformations: How to Shift Graphs on a Plane

32K

Inverse Functions

41K

Functions: Identification, Notation & Practice Problems

74K

Summation Notation and Mathematical Series

21K

How to Calculate a Geometric Series

13K

Finding and Classifying Geometric Sequences

24K

How to Calculate an Arithmetic Series

30K

What is a Mathematical Sequence?

42K

How to Find and Classify an Arithmetic Sequence

30K

How to Solve Logarithmic Equations

20K

Exponential Growth vs. Decay

49K

Practice Problems for Logarithmic Properties

21K

What Is an Exponential Function?

95K

Logarithmic Properties

21K

How to Evaluate Logarithms

68K

What is a Logarithm?

27K

How to Solve Exponential Equations

32K

What Is a Factorial?

14K

Binomial Theorem Practice Problems

11K

What is the Binomial Theorem?

12K

Factorial Practice Problems

16K

Practice Adding and Subtracting Rational Expressions

23K

Rational Equations: Practice Problems

13K

How to Multiply and Divide Rational Expressions

39K

How to Add and Subtract Rational Expressions

31K

How to Solve a Rational Equation

61K

Multiplying and Dividing Rational Expressions: Practice Problems

28K

How to Add, Subtract and Multiply Polynomials

45K

How to Use Synthetic Division to Divide Polynomials

28K

Dividing Polynomials with Long and Synthetic Division: Practice Problems

50K

How to Divide Polynomials with Long Division

91K

Rational Exponents

36K

Simplifying Expressions with Rational Exponents

86K

How to Simplify Expressions with Exponents

54K

How to Graph Cubics, Quartics, Quintics and Beyond

24K

What Are the Five Main Exponent Properties?

55K

How to Define a Zero and Negative Exponent

60K

How to Graph a Complex Number on the Complex Plane

20K

How to Add, Subtract and Multiply Complex Numbers

32K

How to Divide Complex Numbers

23K

What is an Imaginary Number?

41K

How to Solve Quadratics with Complex Numbers as the Solution

29K

How to Solve a Quadratic Equation by Factoring

31K

How to Solve Quadratics That Are Not in Standard Form

31K

How to Use the Quadratic Formula to Solve a Quadratic Equation

33K

How to Complete the Square

27K

Multiplying Binomials Using FOIL & the Area Method: Practice Problems

20K

Multiplying Binomials Using FOIL and the Area Method

26K

How to Factor Quadratic Equations: FOIL in Reverse

83K

Completing the Square Practice Problems

23K

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

54K

Parabolas in Standard, Intercept, and Vertex Form

179K

What is a Parabola?

54K

What is an Inequality?

54K

How to Graph 1- and 2-Variable Inequalities

38K

Set Notation, Compound Inequalities, and Systems of Inequalities

28K

Graphing Inequalities: Practice Problems

34K

How to Solve and Graph an Absolute Value Inequality

32K

Solving and Graphing Absolute Value Inequalities: Practice Problems

32K

How to Evaluate Absolute Value Expressions

36K

How to Solve an Absolute Value Equation

30K

Solving Absolute Value Practice Problems

20K

What is an Absolute Value?

35K

How to Graph an Absolute Value and Do Transformations

41K

Graphing Absolute Value Equations: Dilations & Reflections

46K

How to Take a Determinant of a Matrix

27K

What is a Matrix?

38K

How Do I Use a System of Equations?

36K

What is a System of Equations?

52K

Abstract Algebraic Examples and Going from a Graph to a Rule

39K

Graphing Undefined Slope, Zero Slope and More

120K

What is a Linear Equation?

148K

Linear Equations: Intercepts, Standard Form and Graphing

87K

How to Write a Linear Equation

67K

Separation of Variables to Solve System Differential Equations

6.5K

Calculating Integrals of Simple Shapes

6.4K

How to Calculate Volumes Using Single Integrals

5.3K

How to Find Volumes of Revolution With Integration

9.8K

How to Solve Improper Integrals

4.3K

Partial Fractions: How to Factorize Fractions with Quadratic Denominators

10K

Integration and Dynamic Motion

4.6K

Differential Notation in Physics

4.4K

How to Find Simple Areas With Root Finding and Integration

2.4K

Using Integration By Parts

9K

How to Integrate Functions With Partial Fractions

5.4K

Anti-Derivatives: Calculating Indefinite Integrals of Polynomials

5.4K

How to Calculate Integrals of Trigonometric Functions

16K

Calculating Rate and Exponential Growth: The Population Dynamics Problem

57K

Related Rates: The Distance Between Moving Points Problem

9.3K

How to Solve Integrals Using Substitution

5K

Related Rates: The Draining Tank Problem

34K

How to Find Area Between Functions With Integration

4.6K

How to Calculate Integrals of Exponential Functions

6.9K

Substitution Techniques for Difficult Integrals

3.9K

How to Use Trigonometric Substitution to Solve Integrals

4.1K

Understanding Trigonometric Substitution

6.3K

How to Find the Limits of Riemann Sums

4.8K

Calculating Derivatives of Exponential Equations

5.7K

Using Limits to Calculate the Derivative

11K

Using the Chain Rule to Differentiate Complex Functions

14K

Applying L'Hopital's Rule in Simple Cases

2.7K

Data Mining: Function Properties from Derivatives

2.5K

What is L'Hopital's Rule?

5.5K

Derivatives: Graphical Representations

7.1K

Linear Properties of Definite Integrals

3.8K

Calculating Higher Order Derivatives

6.5K

How to Find Derivatives of Implicit Functions

8.5K

Linearization of Functions

5.4K

Graphing the Derivative from Any Function

6.9K

What It Means To Be 'Differentiable'

6.9K

Calculating Derivatives of Polynomial Equations

5.4K

Calculating Derivatives of Trigonometric Functions

9.3K

When to Use the Quotient Rule for Differentiation

29K

Optimizing Simple Systems

3.8K

What is the Mean Value Theorem?

7K

Indefinite Integrals as Anti Derivatives

5.1K

How to Determine Maximum and Minimum Values of a Graph

129K

Understanding Concavity and Inflection Points with Differentiation

12K

The Fundamental Theorem of Calculus

6.2K

Concavity and Inflection Points on Graphs

5K

Derivatives: The Formal Definition

9.4K

Applying L'Hopital's Rule in Complex Cases

6.3K

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

8.8K

Slopes and Rate of Change

11K

The Linear Properties of a Derivative

4.8K

What is Newton's Method?

3.9K

Applying the Rules of Differentiation to Calculate Derivatives

24K

Data Mining: Identifying Functions From Derivative Graphs

7.7K

Optimization and Differentiation

9.1K

Optimizing Complex Systems

4.2K

How to Use Riemann Sums to Calculate Integrals

9.3K

Definite Integrals: Definition

5.9K

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

7.5K

How to Calculate Derivatives of Inverse Trigonometric Functions

7.5K

Velocity and the Rate of Change

11K

How to Estimate Function Values Using Linearization

3.8K

Differentiating Factored Polynomials: Product Rule and Expansion

7.8K

What is the Trapezoid Rule?

8.9K

Average Value Theorem

3.2K

Using Differentiation to Find Maximum and Minimum Values

39K

Non Differentiable Graphs of Derivatives

4.2K

How to Use Riemann Sums for Functions and Graphs

5.2K

Understanding Higher Order Derivatives Using Graphs

4.5K

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

26K

How to Solve Visualizing Geometry Problems

17K

Squeeze Theorem: Definition and Examples

11K

Continuity in a Function

13K

Radians & Degrees on the CLEP Scientific Calculator

9.7K

Discontinuities in Functions and Graphs

17K