Math InvestigationsUnit 1: Building Numbers and Solving Story Problems (Addition, Subtraction, and the Number System)
Investigation 1: Counting and Quantity
Investigation 2: Introducing Addition
Investigation 3: Introducing Subtraction
Unit 2: Comparing and Combining Shapes (2-D Geometry)
Investigation 1: Composing and Decomposing 2-D Shapes
Investigation 2: Describing and Sorting Shapes
Unit 3: How Many of Each? How Many In All? (Addition, Subtraction, and the Number System)
Investigation 1: Counting On and Back
Investigation 2: How Many of Each?
Investigation 3: Multiple Addends and Equivalent Expressions
Investigation 4: Working with Larger Numbers
Unit 4: Fish Lengths and Fraction Rugs (Measurement and Fractions)
Investigation 1: Measuring and Comparing
Investigation 2: Halves and Fourths
Unit 5: Number Games and Crayon Problems (Addition, Subtraction, and the Number System)
Investigation 1: Combinations of 10
Investigation 2: Addition and Subtraction
Investigation 3: Problems About Unknown Change
Unit 6: Would You Rather Be an Eagle or a Whale? (Modeling with Data)
Investigation 1: Collecting, Representing, and Solving Problems about Data in Two Categories
Investigation 2: Organizing and Analyzing Data in Three Categories
Unit 7: How Many Tens? How Many Ones? (Addition, Subtraction, and the Number System)
Investigation 1: Counting, Adding, and Subtracting Groups of 10
Investigation 2: Tens and Ones
Investigation 3: Strategies for Adding Within 100
Unit 8: Blocks and Buildings (3-D Geometry)
Investigation 1: Blocks and Buildings
Investigation 1: Counting and Quantity
Investigation 2: Introducing Addition
Investigation 3: Introducing Subtraction
Unit 2: Comparing and Combining Shapes (2-D Geometry)
Investigation 1: Composing and Decomposing 2-D Shapes
Investigation 2: Describing and Sorting Shapes
Unit 3: How Many of Each? How Many In All? (Addition, Subtraction, and the Number System)
Investigation 1: Counting On and Back
Investigation 2: How Many of Each?
Investigation 3: Multiple Addends and Equivalent Expressions
Investigation 4: Working with Larger Numbers
Unit 4: Fish Lengths and Fraction Rugs (Measurement and Fractions)
Investigation 1: Measuring and Comparing
Investigation 2: Halves and Fourths
Unit 5: Number Games and Crayon Problems (Addition, Subtraction, and the Number System)
Investigation 1: Combinations of 10
Investigation 2: Addition and Subtraction
Investigation 3: Problems About Unknown Change
Unit 6: Would You Rather Be an Eagle or a Whale? (Modeling with Data)
Investigation 1: Collecting, Representing, and Solving Problems about Data in Two Categories
Investigation 2: Organizing and Analyzing Data in Three Categories
Unit 7: How Many Tens? How Many Ones? (Addition, Subtraction, and the Number System)
Investigation 1: Counting, Adding, and Subtracting Groups of 10
Investigation 2: Tens and Ones
Investigation 3: Strategies for Adding Within 100
Unit 8: Blocks and Buildings (3-D Geometry)
Investigation 1: Blocks and Buildings