# Surf for More Math

## Lesson 9 **- Unit Rates**

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

**Goal**

Represent relationships using unit rates.

**Builds Upon**

Student Book pages 374-375

**Instructions for Use**

Determine
a Ratio helps your child reduce the ratio to its lowest terms.

To use Determine a Ratio, click the 'Start' button. Input the numbers
in the proper text box. Click the 'Check ' button to see if the answer
is correct.

Interactive
Calculator lets your child find unit rates.

** **

To use the Interactive Calculator, present your child with a question.
For example, 12 eggs cost $1.44, how much does one egg cost? Have your
child start by inputting the number 1.44. This number will appear in
the window of the calculator. Press the '÷ ' button on the calculator,
and press 12. Press the ' =' button on the calculator to show the answer.
Try other questions so your child can determine unit rates.