# Surf for More Math

## CHAPTER 3: RATIOS AND RATES

**Lesson 5: Communicate About Ratios and Rates **

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

**Goal**

Explain your thinking when solving ratio and rate problems.

**Builds Upon**

Student Book pages 126–128

**Instructions for Use**

**Rags to Riches (Ratios, Rates, and Percents)** is a quiz/game about ratios, rates, and percents.

This game is similar to Who Wants to Be a Millionaire. You will be given a problem dealing with rate and ratio. Write out your solution, including any models, charts, or diagrams, for each question on a separate sheet of paper. Be sure to explain why you did each calculation.

Then click on your answer to move on in the game. If you are incorrect, you will go back to the start of the game. Use the “Hint” buttons to help you if necessary.

**Using Proportions** is an on-line quiz about proportions, rates, ratios, and percents.

Take this on-line quiz and show what you have learned throughout this unit. Write out your solution, including any models, charts, or diagrams, for each question on a separate sheet of paper. Be sure to explain why you did each calculation.