- 1.1: Number Talk: Division
- 1.2: Feeding a Crowd, Revisited
- Are you ready for more?

- 1.4: Revisiting Bread Dough
- Lesson 1 Summary
- Glossary
- Lesson 1 Practice Problems

- 2.1: Missing Figures
- Are you ready for more?

- 2.3: Filling a Water Cooler
- 2.4: Feeding Shrimp
- Lesson 2 Summary
- Glossary
- Lesson 2 Practice Problems

- 3.1: Number Talk: Quotients with Decimal Points
- 3.2: Concert Ticket Sales
- Are you ready for more?

- Lesson 3 Summary
- Lesson 3 Practice Problems

- 4.1: Adjusting a Recipe
- Are you ready for more?

- 4.3: Running Laps
- Lesson 4 Summary
- Lesson 4 Practice Problems

- 5.1: Notice and Wonder: Patterns with Rectangles
- 5.2: More Conversions
- Are you ready for more?

- 5.4: All Kinds of Equations
- Lesson 5 Summary
- Lesson 5 Practice Problems

- 6.1: What Do You Want to Know?
- 6.2: Info Gap: Biking and Rain
- Are you ready for more?

- Lesson 6 Summary
- Lesson 6 Practice Problems

- 7.1: Notice These Points
- 7.2: T-shirts for Sale
- Are you ready for more?

- Lesson 7 Summary
- Glossary
- Lesson 7 Practice Problems

- 8.1: Number Talk: Fraction Multiplication and Division
- Are you ready for more?

- 8.3: Space Rocks and the Price of Rope
- Lesson 8 Summary
- Lesson 8 Practice Problems

- 9.1: True or False: Fractions and Decimals
- Are you ready for more?

- 9.3: Hot Dog Eating Contest
- Lesson 9 Summary
- Lesson 9 Practice Problems

- 10.1: Estimating a Percentage
- 10.2: Perimeter of a Square
- Are you ready for more?

- Lesson 10 Summary
- Lesson 10 Practice Problems

- 11.1: How Do You Figure?
- Are you ready for more?

- 11.3: Measuring Circles
- 11.4: Drawing Circles
- Lesson 11 Summary
- Glossary
- Lesson 11 Practice Problems

- 12.1: Which Is Greater?
- 12.2: Measuring Circumference and Diameter
- Are you ready for more?

- Lesson 12 Summary
- Glossary
- Lesson 12 Practice Problems

- 13.1: What Do We Know? What Can We Estimate?
- 13.2: Using \pi
- Are you ready for more?

- 13.4: Measuring a Picture Frame
- Lesson 13 Summary
- Lesson 13 Practice Problems

- 14.1: Mental Calculations
- 14.2: House Floorplan
- Are you ready for more?

- Lesson 14 Summary
- Lesson 14 Practice Problems

- 15.1: Irrigating a Field
- Are you ready for more?

- 15.3: Making a Polygon out of a Circle
- 15.4: Making Another Polygon out of a Circle
- Lesson 15 Summary
- Lesson 15 Practice Problems

- 16.1: Still Irrigating the Field
- Are you ready for more?

- 16.3: The Running Track Revisited
- Lesson 16 Summary
- Lesson 16 Practice Problems

- 17.1: Which is the Bluest?
- 17.2: One Scenario, Four Representations
- 17.3: Make a Poster
- Lesson 17 Summary
- Lesson 17 Practice Problems

- 18.1: Comparing Baths and Showers
- 18.2: Saving Water: Bath or Shower?
- 18.3: Representing Water Usage

- 19.1: Filling the Plate
- 19.2: Card Sort: Circle Problems
- 19.3: Visual Display of Circle Problem
- Are you ready for more?

- Lesson 19 Summary
- Lesson 19 Practice Problems

- 20.1: Cost of a Stained-Glass Window
- 20.2: A Bigger Window
- 20.3: Invent Your Own Design

- Lesson 1: Proportional Relationships and Equations
- Lesson 2: Two Equations for Each Relationship
- Lesson 3: Using Equations to Solve Problems
- Lesson 4: Comparing Relationships with Tables
- Lesson 5: Comparing Relationships with Equations
- Lesson 6: Solving Problems about Proportional Relationships
- Lesson 7: Graphs of Proportional Relationships
- Lesson 8: Using Graphs to Compare Relationships
- Lesson 9: Two Graphs for Each Relationship
- Lesson 10: How Well Can You Measure?
- Lesson 11: Exploring Circles
- Lesson 12: Exploring Circumference
- Lesson 13: Applying Circumference
- Lesson 14: Estimating Areas
- Lesson 15: Area of a Circle
- Lesson 16: Applying Area of Circles
- Lesson 17: Four Representations
- Lesson 18: Using Water Efficiently
- Lesson 19: Distinguishing Circumference and Area
- Lesson 20: Stained-Glass Windows
- 1.1: Notice and Wonder: Tape Diagrams
- Are you ready for more?

- 1.3: More and Less
- 1.4: Card Sort: Representations of Proportional Relationships
- Lesson 1 Summary
- Glossary
- Lesson 1 Practice Problems

- 2.1: Notice and Wonder: Fractions to Decimals
- Are you ready for more?

- 2.3: More and Less with Decimals
- 2.4: Card Sort: More Representations
- Lesson 2 Summary
- Glossary
- Lesson 2 Practice Problems

- 3.1: Improving Their Game
- 3.2: More Cereal and a Discounted Shirt
- Are you ready for more?

- 3.4: Agree or Disagree: Percentages
- Lesson 3 Summary
- Glossary
- Lesson 3 Practice Problems

- 4.1: Notice and Wonder: Double Number Line
- 4.2: Double Number Lines
- Are you ready for more?

- 4.4: Protecting the Green Sea Turtle
- Lesson 4 Summary
- Lesson 4 Practice Problems

- 5.1: Number Talk: From 100 to 106
- 5.2: Interest and Depreciation
- Are you ready for more?

- 5.4: Representing Percent Increase and Decrease: Equations
- Lesson 5 Summary
- Lesson 5 Practice Problems

- 6.1: Number Talk: What Percentage?
- 6.2: Waiting Tables
- Are you ready for more?

- 6.4: Population Growth
- Lesson 6 Summary
- Lesson 6 Practice Problems

- 7.1: Notice and Wonder: The Price of Sunglasses
- 7.2: Shopping in Two Different Cities
- 7.3: Shopping in a Third City
- Are you ready for more?

- Lesson 7 Summary
- Lesson 7 Practice Problems

- 8.1: Tax, Tip, and Discount
- Are you ready for more?

- 8.3: Commission at a Gym
- 8.4: Info Gap: Sporting Goods
- 8.5: Card Sort: Percentage Situations
- Lesson 8 Summary
- Lesson 8 Practice Problems

- 9.1: Measuring to the Nearest
- 9.2: Measuring a Soccer Field
- Are you ready for more?

- Lesson 9 Summary
- Glossary
- Lesson 9 Practice Problems

- 10.1: Number Talk: Estimating a Percentage of a Number
- Are you ready for more?

- 10.3: Measuring in the Heat
- Lesson 10 Summary
- Glossary
- Lesson 10 Practice Problems

- 11.1: A Lot of Iron Ore
- 11.2: Saw Mill
- 11.3: Info Gap: Quality Control
- Lesson 11 Summary
- Lesson 11 Practice Problems

- 12.1: Sorting the News
- 12.2: Investigating
- 12.3: Displaying the News
- Lesson 12 Summary

- Lesson 1: Half as Much Again
- Lesson 2: Say It with Decimals
- Lesson 3: Increasing and Decreasing
- Lesson 4: One Hundred Percent
- Lesson 5: Percent Increase and Decrease with Equations
- Lesson 6: More and Less than 1%
- Lesson 7: Tax and Tip
- Lesson 8: Percentage Situations
- Lesson 9: Measurement Error
- Lesson 10: Percent Error
- Lesson 11: Error Intervals
- Lesson 12: Posing Percentage Problems

- Glossary
- Image Attributions

- Notes
- Notes