Description
Book SynopsisTable of ContentsIntroduction 1
Low-Floor, High-Ceiling Tasks 2
Youcubed Summer Camp 3
Memorization versus Conceptual Engagement 4
Mathematical Thinking, Reasoning, and Convincing 5
Big Ideas 9
Structure of the Book 9
Note on Materials 17
Manipulatives and Materials Used in This Book 18
Activities for Building Norms 21
Encouraging Good Group Work 21
How Many Do You See? Learning to Reason, Convince, and Pose Questions 23
◼ Big Idea 1: Partitioning Shapes into Equal Parts 31
Visualize: Equal or Same? 33
Play: Four Fourths 39
Investigate: Rows and Columns 44
◼ Big Idea 2: Making and Using Equal Groups 53
Visualize: The Groups Inside 55
Play: Skipping down the Hall 61
Investigate: Array Museum 67
◼ Big Idea 3: What Is 100? 73
Visualize: The Many Ways to See 100 75
Play: Scoop and Count 82
Investigate: Making a Dollar, Revisited 86
◼ Big Idea 4: Composing and Decomposing Numbers 91
Visualize: Array Talks 93
Play: Which Is More? 103
Investigate: Coin Grab 114
◼ Big Idea 5: Using Patterns in Place Value 119
Visualize: What’s in Your 12? 121
Play: Reach for It! 126
Investigate: Window Mysteries 136
◼ Big Idea 6: Thinking on the Number Line 145
Visualize: Long Lives 148
Play: Life- Span Puzzles 157
Investigate: Living on the Number Line 166
◼ Big Idea 7: Rulers and Clocks Are Number Lines 173
Visualize: Noticing the Ruler and Clock 175
Play: Walking the Clock 181
Investigate: A Sea of Sharks 187
◼ Big Idea 8: Using Units to Estimate 205
Visualize: Foot by Foot 207
Play: Length Scavenger Hunt 216
Investigate: School- Day Walkabout 222
◼ Big Idea 9: Using Data to Visualize and Wonder about Our World 229
Visualize: Fruit around the World 231
Play: Eat Your Roots 238
Investigate: Dear Data 243
Appendix 253
Grid Paper 254
About the Authors 255
Acknowledgments 257
Index 259
