Multimedia Algebra: What Is an Equation?

In this lesson, we explore what an equation is.

Using the Multimedia Algebra Lessons:

Click on the left/right navigation buttons to scroll through the lesson.

Click on the Audio Play button to start the audio. The audio will not play automatically. Press the Pause button to pause the audio and resume the audio by pressing the Play button. If you press the Stop button, the audio will cease playing and the next time you press Play, the audio will start from the very beginning.

If a page has a video, the video controller works the same way as the audio controller. Furthermore, in the case where there are both video and audio buttons, clicking on on the audio button shuts off the video, and vice-versa.

If a page has an interactive component, use the Reset button to clear the screen.

Click the Practice button to launch the practice worksheet for a lesson.

Tweet Learn More About Multimedia Algebra Library

The Multimedia Algebra Library is a comprehensive collection of multimedia lessons for Algebra 1, Algebra 2, Developmental Math, and other algebra-focused math courses. Each lesson in the Multimedia Algebra Library covers a key concept from algebra, providing text and audio instruction, real-world examples of algebra, and interactive math tools. Each lesson includes a practice worksheet.

Each chapter of the Multimedia Algebra Library includes mid- and end-of-chapter assessments provided in an interactive format.

The Multimedia Algebra Library currently consists of the following lessons (more will be added throughout 2012). The full library consisting of 12 chapters will launch in the fall of 2012 and will become a full subcription service. In the meantime, we offer this preview version of the full site free.

Let us know what you think. Send us a message at admin@media4math.com.

Chapter 1: Pre-Algebra Concepts

Lesson 1: Integers

1.1.1: Integers

1.1.2: Graphing Integers on a Number Line

1.1.3: Comparing Integers

Quiz 1.1

1.1.4: Adding Integers

Math Solvers: Adding Integers with Algebra

1.1.5: Subtracting Integers

Math Examples: Adding and Subtracting Integers with Algebra Tiles

1.1.6: Distance Measures on a Number Line

1.1.7: Applications of Integers

Mid-Chapter Quiz

Lesson 2: Rational Numbers

1.2.1: What Are Rational Numbers?

1.2.2: Adding and Subtracting Rational Numbers

Math Examples: Adding and Subtracting Rational Numbers

1.2.3: Multiplying Rational Numbers

1.2.4: Dividing Rational Numbers

1.2.5: Applications of Rational Numbers

Quiz 1.2

Lesson 3: Numerical Expressions

1.3.1: Addition and Subtraction Expressions

1.3.2: Multiplication Expressions

1.3.3: Division Expressions

1.3.4: Order of Operations

Math Examples: Order of Operations

1.3.5: Applications of Numerical Expressions

Quiz 1.3

End-of-Chapter Test

Chapter 2: Variables and Variable Expressions

Introduction (Video)

Lesson 1: Variables

2.1.1: What Is a Variable?

2.1.2: How to Represent a Variable Algebraically

2.1.3: How to Represent a Variable Using Algebra Tiles

Lesson 2: Variable Expressions

2.2.1: What Is a Variable Expression?

2.2.2: Evaluating Variable Expressions

2.2.3: Simplifying Variable Expressions Using Algebra Tiles

2.2.4: Applications of Variable Expressions

2.2.5: Application: Honey Production

Chapter 3: Variables and Equations

Lesson 1: Solving One-Step Equations

3.1.1: What Is an Equation?

3.1.2: Solving Equations of the Form x + a = b

3.1.3: Solving Equations of the Form x – a = b

3.1.4: Using Algebra Tiles to Solve One-Step Equations

Lesson 2: Solving Two-Step Equations

3.2.1: Solving Equations of the Form cx + a = b

3.2.2: Solving Equations of the Form cx – a = b

3.2.3: Using Algebra Tiles to Solve Two-Step Equations

Lesson 3: Solving Multi-Step Equations

3.3.1: Solving Equations of the Form c1x + a = c2x + b

3.3.2: Solving Equations of the Form c1x – a = c2x – b

3.3.3: Using Algebra Tiles to Solve Multi-Step Equations

Lesson 4: Applications of Variables and Equations

3.4.1: Ratios and Proportions

3.4.2: River Ratios

Chapter 4: Functions and Relations

Lesson 1: Functions

4.1.1: What Is a Function?

4.1.2: Representing Functions Using a Table

4.1.3: Representing Functions Graphically

4.1.4: Representing Functions Algebraically

4.1.5: Application: U.S. Oil Consumption

Lesson 2: Relations

4.2.1: What Is a Relation?

4.2.2: Applications: Space Travel

Chapter 5: Linear Functions and Equations

Lesson 1: Linear Functions

5.1.1: What Is a Linear Function?

5.1.2: Slope Formula

5.1.3: Writing a Linear Equation in Slope-Intercept Form

5.1.4: Linear Equations in Standard Form

Lesson 2: Graphs of Linear Functions

5.2.1: Displaying Linear Functions Graphically and in Tables

5.2.2: Graphing a Linear Function Given m and b

5.2.3: Using the Point-Slope Form

5.2.4: Absolute Value Functions

5.2.5: Linear Regression

5.2.6: Parallel and Perpendicular Lines

5.2.7: Application: Cycling

Chapter 6: Quadratic Functions and Equations

Lesson 1: Quadratic Functions

6.1.1: What Is a Quadratic Function?

6.1.2: Quadratic Functions in Standard form

6.1.3: Quadratic Functions in Vertex form

Lesson 2: Graphs of Quadratic Functions

6.2.1: Displaying Quadratic Functions Graphically and in Tables

6.2.2: Roots, Maxima, and Minima

Lesson 3: Solving Quadratic Equations

6.3.1: Solving Quadratic Equations by Factoring

6.3.2: Solving Quadratic Equations Using the Quadratic Formula

6.3.3: Solving Quadratic Equations by Completing the Square

6.3.4: Solving Quadratic Equations Graphically

6.3.5: Application: Fireworks Displays