Unit 2

Section A: Representing Proportional Relationships with Tables

• Lesson 1: One of These Things Is Not Like the Others

  Let’s remember what equivalent ratios are.

  • Lesson Activities
  • Practice Problems

• Lesson 2: Introducing Proportional Relationships with Tables

  Let’s solve problems involving proportional relationships using tables.

  • Lesson Activities
  • Practice Problems

• Lesson 3: More About Constant of Proportionality

  Let’s solve more problems involving proportional relationships using tables.

  • Lesson Activities
  • Practice Problems

Section B: Representing Proportional Relationships with Equations

• Lesson 4: Proportional Relationships and Equations

  Let’s write equations describing proportional relationships.

  • Lesson Activities
  • Practice Problems

• Lesson 5: Two Equations for Each Relationship

  Let’s investigate the equations that represent proportional relationships.

  • Lesson Activities
  • Practice Problems

• Lesson 6: Using Equations to Solve Problems

  Let’s use equations to solve problems involving proportional relationships.

  • Lesson Activities
  • Practice Problems

Section C: Comparing Proportional and Nonproportional Relationships

• Lesson 7: Comparing Relationships with Tables

  Let’s explore how proportional relationships are different from other relationships.

  • Lesson Activities
  • Practice Problems

• Lesson 8: Comparing Relationships with Equations

  Let’s develop methods for deciding if a relationship is proportional.

  • Lesson Activities
  • Practice Problems

• Lesson 9: Solving Problems About Proportional Relationships

  Let’s solve problems about proportional relationships.

  • Lesson Activities
  • Practice Problems

Section D: Representing Proportional Relationships with Graphs

• Lesson 10: Introducing Graphs of Proportional Relationships

  Let’s see how graphs of proportional relationships differ from graphs of other relationships.

  • Lesson Activities
  • Practice Problems

• Lesson 11: Interpreting Graphs of Proportional Relationships

  Let’s read stories from the graphs of proportional relationships.

  • Lesson Activities
  • Practice Problems

• Lesson 12: Using Graphs to Compare Relationships

  Let’s graph more than one relationship on the same grid.

  • Lesson Activities
  • Practice Problems

• Lesson 13: Two Graphs for Each Relationship

  Let’s use tables, equations, and graphs to answer questions about proportional relationships.

  • Lesson Activities
  • Practice Problems

Section E: Let’s Put It to Work

• Optional

  Lesson 14: Four Representations

  Let’s contrast relationships that are and are not proportional in four different ways.

  • Lesson Activities
  • Practice Problems
• Optional

  Lesson 15: Using Water Efficiently

  Let’s investigate saving water.

  • Lesson Activities