Module 1: Reasoning Strategies for Addition
- Figure 11: Foundations and Activity List for Quality Practice
- Game 1: Flexible Decomposition - Five Ways, Most Ways
- Game 2: Flexible Decomposition - Lose It
- Routine 3: Flexible Decomposition - Common or Unique?
- Game 4: Number Relationships and Distance From Zero - Cover the Line
- Game 5: Number Relationships and Distance From Zero – Combinations
- Game 6: Number Relationships and Distance From Zero - Farthest From
- Game 7: Operation Sense - Six Charts
- Routine 8: Number Relationships and Distance From Zero - The Stand
- Game 9: Number Relationships and Distance From Zero - Multiple Cover Up
- Routine 10: Operation Sense - Another Way to Say it
- Game 11: Operation Sense - PoNeg Products 3 by Threes
- Routine 12: Operation Sense - The Truth
- Routine 13: Operation Sense - The One and Done
- Routine 14: Unit Fractions - The Missing
- Routine 15: Unit Fractions - If I Know This
- Activity 1.3: Game: Make It Close Recording Sheet
- Activity 1.3: Game: Make It Close Placemats
- Activity 1.4: Center/Independent Task: Greatest Sum, Smallest Sum Recording Sheet
- Activity 1.4: Center/Independent Task: Greatest Sum, Smallest Sum Digit Cards
- Activity 1.8: Game: Make Zero a Hero
- Activity 1.9: One or Both and I Prefer
- Activity 1.11: Routine: “Or You Could . . .”
- Activity 1.12: Game: Estimation Cover Cards
- Activity 1.12: Game: Estimation Cover Game Board
- Activity 1.16: Game: Take 5