What does it mean when a recipe uses a ratio like “2 eggs for every 3 cups of flour”?

In this lesson you will learn to visualize a part-to-part ratio using pictures.

Let’s Review A Common Mistake Thinking that a ratio describes just one situation Example: 2 eggs for every 3 cups of flour

Let’s Review Core Lesson Ratios show how 2 (or more) quantities are related.

Let’s Review Core Lesson For example: 2 eggs for every 3 cups of flour

Let’s Review Core Lesson The ratio of eggs to flour is 2 to 3 2:3 3 2

In this lesson you have learned to visualize a part-to-part ratio using pictures.

Let’s Review Guided Practice At a school, the ratio of boys to girls is 4 to 3. Draw two different pictures of this ratio.

Let’s Review Extension Activities A recipe for lemonade says that the ratio of cups of lemon juice to cups of sugar to cups of water is 1:2:5. Draw two different pictures of this ratio.

Let’s Review Extension Activities At School A, the ratio of boys to girls is 3:2. Draw two pictures of this ratio. At School B, the ratio of boys to girls is 2:3. Draw two pictures of this ratio. Would you rather go to School A or School B? Why?

Let’s Review Extension Activities The pancake recipe says that you should make 4 pancakes for every 1 person. Draw two different pictures of this ratio.

Let’s Review Quick Quiz To make yummy fruit punch, you should use 1 cup of grape juice for every 4 cups of apple juice. Draw two different pictures of this ratio. When you set the table for a fancy dinner, you should use 3 forks for every 2 spoons. Draw two different pictures of this ratio.