## 8.2.1 Two and Three Term Ratios

One of the simplest recipes is for making Rice Krispie Treats. This has only 3 ingredients:

- 3 tablespoons of butter/margarine
- 40 marshmallows
- 6 cups of Rice Krispies

What if you only had 10 marshmallows? How much of each ingredient should you use? This is what ratios are good for, for thinking proportionally. Today, we'll look at ratios in more detail.

Resources

**Videos**** **or watch the Playlist for all 4 videos

- Video 1: Two Term Ratios
- Video 2: Three Term Ratios
- Video 3: Part-to-part and Part-to-whole ratios
- Video 4: Solving simple problems using ratios

Assignment:

- p51 #5-8, 10-13, 15, 17, 20 *21

Things you should know how to do after today: