Illustrative Math Alignment: Grade 8 Unit 3

This is part of a collection of videos that look at the structure of different equations in order to learn how to solve them.

This is part of a collection of videos that look at the structure of different equations in order to learn how to solve them.

This is part of a collection of videos that look at the structure of different equations in order to learn how to solve them.

This is part of a collection of videos that look at the structure of different equations in order to learn how to solve them.

This is part of a collection of videos that look at the structure of different equations in order to learn how to solve them.

This is part of a collection of videos that look at the structure of different equations in order to learn how to solve them.

This is part of a collection of videos that look at the structure of different equations in order to learn how to solve them.

This is part of a collection of videos that look at the structure of different equations in order to learn how to solve them.

This is part of a collection of videos that look at the structure of different equations in order to learn how to solve them.

This is part of a collection of videos that look at the structure of different equations in order to learn how to solve them.

This is part of a collection of videos that look at the structure of different equations in order to learn how to solve them.

This is part of a collection of videos that look at the structure of different equations in order to learn how to solve them.

This is part of a collection of videos that look at the structure of different equations in order to learn how to solve them.

This is part of a collection of videos that look at the structure of different equations in order to learn how to solve them.

This is part of a collection of videos that look at the structure of different equations in order to learn how to solve them.

This is part of a collection of video tutorials on the topic of One-Step Equations.

This is part of a collection of video tutorials on the topic of One-Step Equations.

This is part of a collection of video tutorials on the topic of One-Step Equations.

This is part of a collection of video tutorials on the topic of One-Step Equations.

This is part of a collection of video tutorials on solving quadratic equations by completing the square. Each video is a step-by-step tutorial.

Note: The download is a PDF template for use in modeling the examples shown in the videos.

This is part of a collection of video tutorials on solving quadratic equations by completing the square. Each video is a step-by-step tutorial.

Note: The download is a PDF template for use in modeling the examples shown in the videos.

This is part of a collection of video tutorials on solving quadratic equations by completing the square. Each video is a step-by-step tutorial.

Note: The download is a PDF template for use in modeling the examples shown in the videos.

This is part of a collection of video tutorials on solving quadratic equations by completing the square. Each video is a step-by-step tutorial.

Note: The download is a PDF template for use in modeling the examples shown in the videos.

This is part of a collection of video tutorials on the topic of the Distributive Property.

The next section provides background information on math properties. Refer to this section as you review the math properties definitions.

This is part of a collection of video tutorials on the topic of the Distributive Property.

This is part of a collection of video tutorials on the topic of the Distributive Property.

This is part of a collection of video tutorials on the topic of the Distributive Property.

This is part of a collection of video tutorials on the topic of the Distributive Property.

This is part of a collection of video tutorials on the topic of the Distributive Property.

This is part of a collection of video tutorials on the topic of the Distributive Property.

This is part of a collection of video tutorials on the topic of the Distributive Property.

This is part of a collection of video tutorials on the topic of the Distributive Property.

This is part of a collection of video tutorials on the topic of the Distributive Property.

This is part of a collection of video tutorials on the topic of the Distributive Property.

This is part of a collection of video tutorials on the topic of the Distributive Property.

This is part of a collection of video tutorials on the topic of the Distributive Property.

This is part of a collection of video tutorials on the topic of the Distributive Property.

This is part of a collection of video tutorials on the topic of the Distributive Property.

This is part of a collection of video tutorials on the topic of the Distributive Property.

This is part of a collection of video tutorials on the topic of the Distributive Property.

This is part of a collection of video tutorials on the topic of the Distributive Property.

This video provides a step-by-step tutorial on using the quadratic formula. In this example there are two real roots. Note the download is a PDF that can used to demonstrate the step-by-step calculations.

This video provides a step-by-step tutorial on using the quadratic formula. In this example there are two real roots. Note the download is a PDF that can used to demonstrate the step-by-step calculations.

This video provides a step-by-step tutorial on using the quadratic formula. In this example there are two real roots. Note the download is a PDF that can used to demonstrate the step-by-step calculations.

This video provides a step-by-step tutorial on using the quadratic formula. In this example there is only one real root. Note the download is a PDF that can used to demonstrate the step-by-step calculations.

This video provides a step-by-step tutorial on using the quadratic formula. In this example there are two complex roots. Note the download is a PDF that can used to demonstrate the step-by-step calculations.

What Is a Variable?

A variable is a symbol, usually a letter, that can stand for different things.

What Is a Variable?

A variable is a symbol, usually a letter, that can stand for different things.

What Is a Variable?

A variable is a symbol, usually a letter, that can stand for different things.

Watch the following video on Order of Operations. (The transcript is included.)

Video Transcript

A numerical expression includes numbers and operation symbols, addition, subtraction, multiplication, and division.

Because addition is commutative, adding from left to right, or right to left, gives you the same result.

The expressions 2 + 3 and 3 + 2 give the same result. But this isn't the case with all operations.

Subtraction isn't commutative.