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| Unit 1: Arrays, Factors, and Multiplicative Comparison |
| Investigation 1 – Representing Multiplication with Arrays |
| Investigation 2 – Finding Factors |
| Unit 2: Generating and Representing Measurement Data |
| Investigation 1 – Modeling with Data |
| Investigation 2 – Using Data to Compare |
| Unit 3: Multiple Towers and Cluster Problems |
| Investigation 1 – Breaking Apart Multiplication Problems |
| Investigation 2 – Solving Division Problems |
| Investigation 3 – Strategies for Multiplication |
| Unit 4: Measuring and Classifying Shapes |
| Investigation 1 – Linear Measurement |
| Investigation 2 – Sorting and Classifying Polygons |
| Investigation 3 – Measuring Angles |
| Investigation 4 – Symmetry and Area |
| Unit 5: Large Numbers and Landmarks |
| Investigation 1 – Studying Addition |
| Investigation 2 – Studying Subtraction |
| Investigation 3 – Adding and Subtracting Large Numbers |
| Unit 6: Fraction Cards and Decimal Grids |
| Investigation 1 – Parts of Rectangles |
| Investigation 2 – Comparing Fractions and Decimals |
| Investigation 3 – Adding and Subtracting Fractions and Decimals |
| Investigation 4 – Computation with Rational Numbers |
| Unit 7: How Many Packages and Groups? |
| Investigation 1 – Multiplication with 2-Digit Numbers |
| Investigation 2 – Strategies for Multiplication |
| Investigation 3 – Solving Division Problems |
| Unit 8: Penny Jars and Towers |
| Investigation 1 – Representing and Analyzing Patterns |