Math Focus 8
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# Surf for More Math

## CHAPTER 9: LINEAR RELATIONS AND LINEAR EQUATIONS

### Lesson 5: Solving Equations with Counter Models

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
Model and solve linear equations concretely.

Builds Upon
Student Book pages 386–392

Instructions for Use

Writing Algebraic Equations allows students to read problems and select the equation that correctly represents each problem.

Read through the Examples of algebraic equations. Then, complete the Exercises at the end by selecting the algebraic equation that correctly represents the given sentence.

Algebra Quiz allows students to practice solving linear equations.

To begin, select “Time Limit: 20 seconds”, “Difficulty: Level 2”, and “Problem Type: One-Step Equations.” Then click “Start Game” to begin.

This activity will test your algebra skills. Click “Ready” to get an equation, solve the equation, type your answer into the blank text box, and hit the “Enter” key. The activity will tell you if your answer is correct. Keep clicking “Ready” to get more equations to solve.

For a challenge go back to the main page, and select a higher Difficulty Level and various Problem Types.

Algebra Four allows students to a play a game with a partner that is similar to Connect Four, in which they must solve linear equations in order to take their turn.

To begin, select “Time Limit: 20 seconds”, “Difficulty: Level 2”, and “Problem Type: One-Step Equations.” Then click “Start Game” to begin.

The game is like Connect Four, and the goal is to place four of your pieces on the grid in a row, either horizontally, diagonally, or vertically, and to prevent the other player from doing so.

You must solve a linear equation in order to take your turn.

Click “Ready” to start the timer. Solve the equation, type in your answer, click “Answer” and then choose the column you want your piece to be placed in.

For a challenge go back to the main page, and select a higher Difficulty Level and various Problem Types.