Math Focus 7

## CHAPTER 9: LINEAR RELATIONS AND LINEAR EQUATIONS

### Lesson 2: Evaluating an Expression to Solve a Problem

Use these interactive activities to encourage students to have fun on the Web while learning about linear relations and linear equations. Students can try these activities on their own or in pairs.

Goal
Create and evaluate an expression to solve a problem.

Builds Upon
Student Book pages 384–388

Instructions for Use

The Language of Algebra allows students to explore how we translate words and sentences into equations.

Read through the four steps to learn more about how to translate sentences into algebraic equations. The fourth step lets you practice what you know.

Translating Word Problems allows students to learn more about how words and problems translate into equations, by observing some examples.

Read through all the examples and make sure you understand how to do each type of ‘translation’.

allows students to practice solving equations

To use Alginon’s Algebraic Explorer, click on “Assessment Activity” button on the right. Solve the equation shown and then click on the correct answer before the numbers leave the screen. The activity will keep track of your accuracy.

Alginon's Algebraic Explorer allows students to practice solving equations

To use Alginon’s Algebraic Explorer, click on “Assessment Activity” button on the right. Solve the equation shown and then click on the correct answer before the numbers leave the screen. The activity will keep track of your accuracy.