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| Unit 1: Math Is… |
| Lesson 1-1: Math Is Mine |
| Lesson 1-2: Math Is Exploring and Thinking |
| Lesson 1-3: Math Is In My World |
| Lesson 1-4: Math Is Explaining and Sharing |
| Lesson 1-5: Math Is Finding Patterns |
| Lesson 1-6: Math Is Ours |
| Unit 2: Numbers to 5 |
| Lesson 2-1: Count 1, 2, and 3 |
| Lesson 2-2: Represent 1, 2, and 3 |
| Lesson 2-3: Count 4 and 5 |
| Lesson 2-4: Represent 4 and 5 |
| Lesson 2-5: Represent 0 |
| Lesson 2-6: Numbers to 5 |
| Lesson 2-7: Equal Groups to 5 |
| Lesson 2-8: Greater Than and Less Than |
| Lesson 2-9: Compare Numbers to 5 |
| Unit 3: Numbers to 10 |
| Lesson 3-1: Count 6 and 7 |
| Lesson 3-2: Represent 6 and 7 |
| Lesson 3-3: Count 8 and 9 |
| Lesson 3-4: Represent 8 and 9 |
| Lesson 3-5: Count 10 |
| Lesson 3-6: Represent 10 |
| Lesson 3-7: Numbers to 10 |
| Lesson 3-8: Compare Objects in Groups |
| Lesson 3-9: Compare Numbers |
| Lesson 3-10: Write Numbers to 3 |
| Lesson 3-11: Write Numbers to 6 |
| Lesson 3-12: Write Numbers to 10 |
| Unit 4: Sort, Classify, and Count Objects |
| Lesson 4-1: Alike and Different |
| Lesson 4-2: Sort Objects into Groups |
| Lesson 4-3: Count Objects in Groups |
| Lesson 4-4: Describe Groups of Objects |
| Unit 5: 2-Dimensional Shapes |
| Lesson 5-1: Triangles |
| Lesson 5-2: Squares and Rectangles |
| Lesson 5-3: Hexagons |
| Lesson 5-4: Circles |
| Lesson 5-5: Position of 2-Dimensional Shapes |
| Unit 6: Understand Addition |
| Lesson 6-1: Represent and Solve Add To Problems |
| Lesson 6-2: Represent and Solve More Add To Problems |
| Lesson 6-3: Represent and Solve Put Together Problems |
| Lesson 6-4: Represent and Solve Addition Problems |
| Lesson 6-5: Represent and Solve More Addition Problems |
| Unit 7: Understand Subtraction |
| Lesson 7-1: Represent Take Apart Problems |
| Lesson 7-2: Represent and Solve Take From Problems |
| Lesson 7-3: Represent and Solve More Take From Problems |
| Lesson 7-4: Represent and Solve Subtraction Problems |
| Lesson 7-5: Represent and Solve Addition and Subtraction Problems |
| Unit 8: Addition and Subtraction Strategies |
| Lesson 8-1: Add within 5 |
| Lesson 8-2: Subtract within 5 |
| Lesson 8-3: Ways to Make 6 and 7 |
| Lesson 8-4: Ways to Decompose 6 and 7 |
| Lesson 8-5: Ways to Make 8 and 9 |
| Lesson 8-6: Ways to Decompose 8 and 9 |
| Lesson 8-7: Ways to Make 10 |
| Lesson 8-8: Ways to Decompose 10 |
| Unit 9: Numbers 11 to 15 |
| Lesson 9-1: Represent 11, 12, and 13 |
| Lesson 9-2: Make 11, 12, and 13 |
| Lesson 9-3: Decompose 11, 12, and 13 |
| Lesson 9-4: Represent 14 and 15 |
| Lesson 9-5: Make 14 and 15 |
| Lesson 9-6: Decompose 14 and 15 |
| Unit 10: Numbers 16 to 19 |
| Lesson 10-1: Represent 16 and 17 |
| Lesson 10-2: Make 16 and 17 |
| Lesson 10-3: Decompose 16 and 17 |
| Lesson 10-4: Represent 18 and 19 |
| Lesson 10-5: Make 18 and 19 |
| Lesson 10-6: Decompose 18 and 19 |
| Unit 11: 3-Dimensional Shapes |
| Lesson 11-1: 2-Dimensional and 3-Dimensional Shapes |
| Lesson 11-2: Cubes |
| Lesson 11-3: Spheres |
| Lesson 11-4: Cylinders |
| Lesson 11-5: Cones |
| Lesson 11-6: Describe 3-Dimensional Shapes |
| Unit 12: Count to 100 |
| Lesson 12-1: Count by 1s to 50 |
| Lesson 12-2: Count by 1s to 100 |
| Lesson 12-3: Count by 10s to 100 |
| Lesson 12-4: Count From Any Number to 100 |
| Lesson 12-5: Count to Find Out How Many |
| Unit 13: Analyze, Compare, and Compose Shapes |
| Lesson 13-1: Compare and Contrast 2-Dimensional Shapes |
| Lesson 13-2: Build and Draw 2-Dimensional Shapes |
| Lesson 13-3: Compose 2-Dimensional Shapes |
| Lesson 13-4: Compare and Contrast 3-Dimensional Shapes |
| Lesson 13-5: Build 3-Dimensional Shapes |
| Lesson 13-6: Describe 3-Dimensional Shapes in the World |
| Unit 14: Compare Measurable Attributes |
| Lesson 14-1: Describe Attributes of Objects |
| Lesson 14-2: Compare Lengths |
| Lesson 14-3: Compare Heights |
| Lesson 14-4: Compare Weights |
| Lesson 14-5: Compare Capacities |