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| Lesson 1.1: Use Equal Groups to Multiply |
| Lesson 1.2: Use Number Lines to Multiply |
| Lesson 1.3: Use Arrays to Multiply |
| Lesson 1.4: Multiply in Any Order |
| Lesson 1.5: Divide: Size of Equal Groups |
| Lesson 1.6: Divide: Number of Equal Groups |
| Lesson 1.7: Use Number Lines to Divide |
| Lesson 2.1: Multiply by 2 |
| Lesson 2.2: Multiply by 5 |
| Lesson 2.3: Multiply by 10 |
| Lesson 2.4: Multiply by 0 or 1 |
| Lesson 2.5: Use the Distributive Property |
| Lesson 2.6: Problem Solving: Multiplication |
| Lesson 3.1: Multiply by 3 |
| Lesson 3.2: Multiply by 4 |
| Lesson 3.3: Multiply by 6 |
| Lesson 3.4: Multiply by 7 |
| Lesson 3.5: Multiply by 8 |
| Lesson 3.6: Multiply by 9 |
| Lesson 3.7: Practice Multiplication Strategies |
| Lesson 3.8: Multiply Three Factors |
| Lesson 3.9: More Problem Solving: Multiplication |
| Lesson 4.1: Use Arrays to Divide |
| Lesson 4.2: Relate Multiplication and Division |
| Lesson 4.3: Divide by 2, 5, or 10 |
| Lesson 4.4: Divide by 3 or 4 |
| Lesson 4.5: Divide by 6 or 7 |
| Lesson 4.6: Divide by 8 or 9 |
| Lesson 4.7: Divide by 0 or 1 |
| Lesson 4.8: Practice Division Strategies |
| Lesson 4.9: Problem Solving: Division |
| Lesson 5.1: Identify Patterns in the Multiplication Table |
| Lesson 5.2: Use the Multiplication Table |
| Lesson 5.3: Complete Multiplication Tables |
| Lesson 5.4: More Problem Solving |
| Lesson 6.1: Understand Area |
| Lesson 6.2: Measure Area Using Standard Units |
| Lesson 6.3: Find Area by Multiplying |
| Lesson 6.4: Area and the Distributive Property |
| Lesson 6.5: Find Areas of More Shapes |
| Lesson 7.1: Place Value |
| Lesson 7.2: Round Numbers Using a Number Line |
| Lesson 7.3: Round Numbers Using Place Value |
| Lesson 7.4: Estimate Sums |
| Lesson 7.5: Estimate Differences |
| Lesson 8.1: Identify Addition Properties |
| Lesson 8.2: Use Number Lines to Add |
| Lesson 8.3: Use Mental Math to Add |
| Lesson 8.4: Use Partial Sums to Add |
| Lesson 8.5: Add Three-Digit Numbers |
| Lesson 8.6: Add Three or More Numbers |
| Lesson 8.7: Use Number Lines to Subtract |
| Lesson 8.8: Use Mental Math to Subtract |
| Lesson 8.9: Subtract Three-Digit Numbers |
| Lesson 8.10: Relate Addition and Subtraction |
| Lesson 8.11: Problem Solving: Addition and Subtraction |
| Lesson 9.1: Use Number Lines to Multiply by Multiples of 10 |
| Lesson 9.2: Use Place Value to Multiply by Multiples of 10 |
| Lesson 9.3: Use Properties to Multiply by Multiples of 10 |
| Lesson 9.4: Problem Solving: Multiplication and Division |
| Lesson 9.5: Problem Solving: All Operations |
| Lesson 10.1: Equal Parts of a Whole |
| Lesson 10.2: Understand a Unit Fraction |
| Lesson 10.3: Write Fractions of a Whole |
| Lesson 10.4: Fractions on a Number Line: Less than 1 |
| Lesson 10.5: Fractions on a Number Line: Greater than 1 |
| Lesson 11.1: Equivalent Fractions |
| Lesson 11.2: Equivalent Fractions on a Number Line |
| Lesson 11.3: Relate Fractions and Whole Numbers |
| Lesson 11.4: Compare Fractions with the Same Denominator |
| Lesson 11.5: Compare Fractions with the Same Numerator |
| Lesson 11.6: Compare Fractions on a Number Line |
| Lesson 11.7: Compare Fractions |
| Lesson 11.8: Compare and Order Fractions |
| Lesson 12.1: Time to the Nearest Minute |
| Lesson 12.2: Measure Elapsed Time Within the Hour |
| Lesson 12.3: Measure Elapsed Time Across the Hour |
| Lesson 12.4: Problem Solving: Time Interval Problems |
| Lesson 12.5: Understand and Estimate Liquid Volume |
| Lesson 12.6: Measure Liquid Volume |
| Lesson 12.7: Understand and Estimate Mass |
| Lesson 12.8: Measure Mass |
| Lesson 13.1: Identify Sides and Angles of Quadrilaterals |
| Lesson 13.2: Describe Quadrilaterals |
| Lesson 13.3: Classify Quadrilaterals |
| Lesson 13.4: Draw Quadrilaterals |
| Lesson 14.1: Read and Interpret Picture Graphs |
| Lesson 14.2: Make Picture Graphs |
| Lesson 14.3: Read and Interpret Bar Graphs |
| Lesson 14.4: Make Bar Graphs |
| Lesson 14.5: Make Line Plots |
| Lesson 14.6: Measure Lengths: Half Inch |
| Lesson 14.7: Measure Lengths: Quarter Inch |
| Lesson 15.1: Understand Perimeter |
| Lesson 15.2: Find Perimeters of Polygons |
| Lesson 15.3: Find Unknown Side Lengths |
| Lesson 15.4: Same Perimeter, Different Areas |
| Lesson 15.5: Same Area, Different Perimeters |