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| Chapter 1: Numbers to 1,000 |
| Lesson 1: Tens and Ones |
| Lesson 2: Counting by Tens or Ones |
| Lesson 3: Comparing Tens and Ones |
| Lesson 4: Hundreds, Tens, and Ones |
| Lesson 5: Place Value |
| Lesson 6: Comparing Hundreds, Tens, and Ones |
| Lesson 7: Counting by Hundreds, Tens, or Ones |
| Lesson 8: Practice |
| Chapter 2: Addition and Subtraction – Part 1 |
| Lesson 1: Strategies for Addition |
| Lesson 2: Strategies for Subtraction |
| Lesson 3: Parts and Whole |
| Lesson 4: Comparison |
| Lesson 5: Practice |
| Chapter 3: Addition and Subtraction – Part 2 |
| Lesson 1: Addition Without Regrouping |
| Lesson 2: Subtraction Without Regrouping |
| Lesson 3: Addition with Regrouping Ones |
| Lesson 4: Addition with Regrouping Tens |
| Lesson 5: Addition with Regrouping Tens and Ones |
| Lesson 6: Practice A |
| Lesson 7: Subtraction with Regrouping from Tens |
| Lesson 8: Subtraction with Regrouping from Hundreds |
| Lesson 9: Subtraction with Regrouping from Two Places |
| Lesson 10: Subtraction with Regrouping Across Zeros |
| Lesson 11: Practice B |
| Lesson 12: Practice C |
| Chapter 4: Length |
| Lesson 1: Centimeters |
| Lesson 2: Estimating Length in Centimeters |
| Lesson 3: Meters |
| Lesson 4: Estimating Length in Meters |
| Lesson 5: Inches |
| Lesson 6: Using Rulers |
| Lesson 7: Feet |
| Lesson 8: Practice |
| Chapter 5: Weight |
| Lesson 1: Grams |
| Lesson 2: Kilograms |
| Lesson 3: Pounds |
| Lesson 4: Practice |
| Chapter 6: Multiplication and Division |
| Lesson 1: Multiplication – Part 1 |
| Lesson 2: Multiplication – Part 2 |
| Lesson 3: Practice A |
| Lesson 4: Division – Part 1 |
| Lesson 5: Division – Part 2 |
| Lesson 6: Multiplication and Division |
| Lesson 7: Practice B |
| Chapter 7: Multiplication and Division of 2, 5, and 10 |
| Lesson 1: The Multiplication Table of 5 |
| Lesson 2: Multiplication Facts of 5 |
| Lesson 3: Practice A |
| Lesson 4: The Multiplication Table of 2 |
| Lesson 5: Multiplication Facts of 2 |
| Lesson 6: Practice B |
| Lesson 7: The Multiplication Table of 10 |
| Lesson 8: Dividing by 2 |
| Lesson 9: Dividing by 5 and 10 |
| Lesson 10: Practice C |
| Lesson 11: Word Problems |
| Chapter 8: Mental Calculation |
| Lesson 1: Adding Ones Mentally |
| Lesson 2: Adding Tens Mentally |
| Lesson 3: Making 100 |
| Lesson 4: Adding 97, 98, or 99 |
| Lesson 5: Practice A |
| Lesson 6: Subtracting Ones Mentally |
| Lesson 7: Subtracting Tens Mentally |
| Lesson 8: Subtracting 97, 98, or 99 |
| Lesson 9: Practice B |
| Lesson 10: Practice C |
| Chapter 9: Multiplication and Division of 3 and 4 |
| Lesson 1: The Multiplication Table of 3 |
| Lesson 2: Multiplication Facts of 3 |
| Lesson 3: Dividing by 3 |
| Lesson 4: Practice A |
| Lesson 5: The Multiplication Table of 4 |
| Lesson 6: Multiplication Facts of 4 |
| Lesson 7: Dividing by 4 |
| Lesson 8: Practice B |
| Lesson 9: Practice C |
| Chapter 10: Money |
| Lesson 1: Making $1 |
| Lesson 2: Dollars and Cents |
| Lesson 3: Making Change |
| Lesson 4: Comparing Money |
| Lesson 5: Practice A |
| Lesson 6: Adding Money |
| Lesson 7: Subtracting Money |
| Lesson 8: Practice B |
| Chapter 11: Fractions |
| Lesson 1: Halves and Fourths |
| Lesson 2: Writing Unit Fractions |
| Lesson 3: Writing Fractions |
| Lesson 4: Fractions that Make 1 Whole |
| Lesson 5: Comparing and Ordering Fractions |
| Lesson 6: Practice |
| Chapter 12: Time |
| Lesson 1: Telling Time |
| Lesson 2: Time Intervals |
| Lesson 3: A.M. and P.M. |
| Lesson 4: Practice |
| Chapter 13: Capacity |
| Lesson 1: Comparing Capacity |
| Lesson 2: Units of Capacity |
| Lesson 3: Practice |
| Chapter 14: Graphs |
| Lesson 1: Picture Graphs |
| Lesson 2: Bar Graphs |
| Lesson 3: Practice |
| Chapter 15: Shapes |
| Lesson 1: Straight and Curved Sides |
| Lesson 2: Polygons |
| Lesson 3: Semicircles and Quarter-circles |
| Lesson 4: Patterns |
| Lesson 5: Solid Shapes |
| Lesson 6: Practice |