# Surf for More Math

## Lesson 3** - Variables in Expressions**

To encourage your child to have fun on the Web
while learning about Variables in Expressions, here are some games and
interactive activities they can do on their own or in pairs.

**Goal**

Use variables in a sentence.

**Builds Upon**

Student Book pages 12-13

**Instructions for Use**

Evaluating
Expressions with One Variable lets your child practice substituting
the value of the variable into the expression and simplify.

To use Evaluating Expressions with One Variable, click the 'Start'
button. Input the number in the text box for the expression. Click the
'Check' button to see if the answer is correct.