Lesson 1

Are You Ready?

In previous mathematics courses you learned about proportional reasoning. You learned how to calculate rates and about equivalent ratios. Use the “Rates and Ratios” applet to check your understanding of equivalent ratios and writing ratios. First, select “Rates and Ratios (Food)” under the “Number” heading. Next, click on the “Topics” tab. Then choose the following:

• “Topic 1: Equivalent Ratios”
• “Topic 2: Writing a Ratio”

If you feel you need more of a review of these topics, refer to the Refresher section in this lesson.