Contents

1. Section A: Reason with Shapes
1. Warm-up: Which One Doesn’t Belong: Who’s in the Group?
2. 1.1: Card Sort: Shapes
1. Warm-up: True or False: Multiples of Ten
2. 2.1: Card Sort: Triangles
1. Warm-up: Number Talk: Multiply Multiples of Ten
2. 3.1: Learn How to Play Mystery Quadrilateral
1. Warm-up: Which One Doesn’t Belong: More Attributes
2. 4.1: What Makes These Shapes So?
1. Warm-up: Number Talk: Divide by 7
2. 5.1: All the Ways
3. 5.2: Draw One That’s Not . . .
4. Section A Summary
5. Section A Practice Problems
2. Section B: What is Perimeter?
1. Warm-up: Notice and Wonder: Paper Clips & Shapes
2. 6.1: What Does It Take to Build the Shapes?
3. 6.2: Distance Around
1. Warm-up: True or False: Sums of Four Numbers
2. 7.1: All Kinds of Shapes
1. Warm-up: Number Talk: Decreasing Dividend
2. 8.1: Ways to Find Perimeter
3. 8.2: Something is Missing
1. Warm-up: Estimation Exploration: Statue of Liberty
2. 9.1: Missing Measurements
3. 9.2: Can I Use Perimeter?
4. Section B Summary
5. Section B Practice Problems
3. Section C: Expanding on Perimeter
1. Warm-up: True or False: Divide in Parts
2. 10.1: Rope Off the Garden
3. 10.2: Info Gap: A Garden and a Playground
1. Warm-up: Number Talk: Multiply to Divide
2. 11.1: Perimeter of 16 Units
3. 11.2: Same Perimeter, Different Area
1. Warm-up: Number Talk: Divide in Parts
2. 12.1: Area of 24
3. 12.2: Same Area, Different Perimeter
4. Section C Summary
5. Section C Practice Problems
4. Section D: Design with Perimeter and Area
1. Warm-up: Notice and Wonder: A Park
2. 13.1: Design a Park
3. 13.2: Park Problems
1. Warm-up: Notice and Wonder: Textiles
2. 14.1: Create a Wax Print Pattern
3. 14.2: Info Gap: The Bundle
1. Warm-up: What Do You Know About Area and Perimeter?
2. 15.1: Create Your Own Robot
3. Section D Summary
4. Section D Practice Problems
5. Glossary