Unit 2

Section A: What are Ratios?

• Lesson 1: Representing Ratios with Diagrams

  Let’s use diagrams to represent ratios.

  • Lesson Activities
  • Practice Problems

• Lesson 2: Mixtures

  Let’s explore how recipes and ratios are related.

  • Lesson Activities
  • Practice Problems

• Lesson 3: Defining Equivalent Ratios

  Let’s investigate equivalent ratios some more.

  • Lesson Activities
  • Practice Problems

Section B: Representing Equivalent Ratios

• Lesson 4: Introducing Double Number Line Diagrams

  Let’s use number lines to represent equivalent ratios.

  • Lesson Activities
  • Practice Problems

• Lesson 5: Creating Double Number Line Diagrams

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

  • Lesson Activities
  • Practice Problems

• Lesson 6: Per Each

  Let’s use ratios to describe cost and speed.

  • Lesson Activities
  • Practice Problems

• Lesson 7: Comparing Situations by Examining Ratios

  Let’s use ratios to compare situations.

  • Lesson Activities
  • Practice Problems

• Lesson 8: Representing Ratios with Tables

  Let’s use tables to represent equivalent ratios.

  • Lesson Activities
  • Practice Problems

• Lesson 9: Navigating a Table of Equivalent Ratios

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

  • Lesson Activities
  • Practice Problems

• Lesson 10: Solving Equivalent Ratio Problems

  Let’s practice getting information from our partner.

  • Lesson Activities
  • Practice Problems

• Lesson 11: Part-Part-Whole Ratios

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

  • Lesson Activities
  • Practice Problems

• Lesson 12: Solving More Ratio Problems

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

  • Lesson Activities
  • Practice Problems

Section C: Rates

• Lesson 13: The Burj Khalifa

  Let’s investigate the Burj Khalifa building.

  • Lesson Activities
  • Practice Problems

• Lesson 14: Measuring with Different-Sized Units

  Let’s measure things.

  • Lesson Activities
  • Practice Problems

• Lesson 15: Converting Units

  Let’s convert measurements to different units.

  • Lesson Activities
  • Practice Problems

• Lesson 16: Comparing Speeds and Prices

  Let’s compare some speeds and some prices.

  • Lesson Activities
  • Practice Problems

• Lesson 17: Interpreting Rates

  Let’s explore unit rates.

  • Lesson Activities
  • Practice Problems

• Lesson 18: Equivalent Ratios Have the Same Unit Rates

  Let’s revisit equivalent ratios.

  • Lesson Activities
  • Practice Problems

• Lesson 19: Solving Rate Problems

  Let’s use unit rates like a pro.

  • Lesson Activities
  • Practice Problems

Section D: Percentages

• Lesson 20: Percentages and Double Number Lines

  Let’s use double number lines to represent percentages.

  • Lesson Activities
  • Practice Problems

• Lesson 21: Percentages and Tape Diagrams

  Let’s use tape diagrams to understand percentages.

  • Lesson Activities
  • Practice Problems

• Lesson 22: Benchmark Percentages

  Let’s contrast percentages and fractions.

  • Lesson Activities
  • Practice Problems

• Lesson 23: Solving Percentage Problems

  Let’s solve more percentage problems.

  • Lesson Activities
  • Practice Problems

• Lesson 24: Finding the Percentage

  Let’s find percentages in general.

  • Lesson Activities
  • Practice Problems

Section E: Let’s Put It to Work

• Optional

  Lesson 25: A Fermi Problem

  Let’s solve a Fermi problem.

  • Lesson Activities
• Optional

  Lesson 26: Painting a Room

  Let’s see what it takes to paint a room.

  • Lesson Activities