Unit 2

Section A: What are Ratios?

• Lesson 1: Introducing Ratios and Ratio Language

  Let’s describe two quantities at the same time.

  • Lesson Activities
  • Practice Problems

• Lesson 2: Representing Ratios with Diagrams

  Let’s use diagrams to represent ratios.

  • Lesson Activities
  • Practice Problems

Section B: Equivalent Ratios

• Lesson 3: Recipes

  Let’s explore how ratios affect the way a recipe tastes.

  • Lesson Activities
  • Practice Problems

• Lesson 4: Color Mixtures

  Let’s see what color-mixing has to do with ratios.

  • Lesson Activities
  • Practice Problems

• Lesson 5: Defining Equivalent Ratios

  Let’s investigate equivalent ratios some more.

  • Lesson Activities
  • Practice Problems

Section C: Representing Equivalent Ratios

• Lesson 6: Introducing Double Number Line Diagrams

  Let’s use number lines to represent equivalent ratios.

  • Lesson Activities
  • Practice Problems

• Lesson 7: Creating Double Number Line Diagrams

  Let’s draw double number line diagrams like a pro.

  • Lesson Activities
  • Practice Problems

• Lesson 8: How Much for One?

  Let’s use ratios to describe how much things cost.

  • Lesson Activities
  • Practice Problems

• Lesson 9: Constant Speed

  Let’s use ratios to work with how fast things move.

  • Lesson Activities
  • Practice Problems

• Lesson 10: Comparing Situations by Examining Ratios

  Let’s use ratios to compare situations.

  • Lesson Activities
  • Practice Problems

Section D: Solving Ratio and Rate Problems

• Lesson 11: Representing Ratios with Tables

  Let’s use tables to represent equivalent ratios.

  • Lesson Activities
  • Practice Problems

• Lesson 12: Navigating a Table of Equivalent Ratios

  Let’s use a table of equivalent ratios like a pro.

  • Lesson Activities
  • Practice Problems

• Lesson 13: Tables and Double Number Line Diagrams

  Let’s contrast double number lines and tables.

  • Lesson Activities
  • Practice Problems

• Lesson 14: Solving Equivalent Ratio Problems

  Let’s practice getting information from our partner.

  • Lesson Activities
  • Practice Problems

Section E: Part-Part-Whole Ratios

• Lesson 15: Part-Part-Whole Ratios

  Let’s look at situations where you can add the quantities in a ratio together.

  • Lesson Activities
  • Practice Problems

• Lesson 16: Solving More Ratio Problems

  Let’s compare all our strategies for solving ratio problems.

  • Lesson Activities
  • Practice Problems

Section F: Let’s Put It to Work

• Lesson 17: A Fermi Problem

  Let’s solve a Fermi problem.

  • Lesson Activities