## MSM Unit 1, Lesson 1: Introducing Ratios

In this lesson students will participate in two activities then create their own ratio puzzles. In the first activity, they will learn about parts-to-parts ratios and complete an embedded assessment. In the second activity, they will learn about parts-to-whole ratios and complete another embedded assessment. In the third activity, students will create their own ratio puzzles to share. Throughout the lessons, the language of ratios is reinforced.