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| Chapter 1: Numbers, Number Words, and Ordinals |
| Lesson 1: Numbers 1 Through 4 |
| Lesson 2: Numbers 5 and 0 |
| Lesson 3: Numbers 6 Through 9 |
| Lesson 4: Numbers 10 Through 12 |
| Lesson 5: Problem Solving, Read and Write in Math: Find Extra Information |
| Lesson 6: One Fewer, One More |
| Lesson 7: Order 0 Through 12 |
| Lesson 8: Count On |
| Lesson 9: Count Back |
| Lesson 10: Before, Between, After |
| Lesson 11: Compare |
| Lesson 12: Ordinals 1st Through 10th |
| Lesson 13: Ordinals: From Top to Bottom |
| Lesson 14: Problem-Solving Strategy: Act It Out |
| Lesson 15: Problem-Solving Applications: Mixed Strategies |
| Chapter 2: Addition Strategies and Facts to 12 |
| Lesson 1: Understanding Addition |
| Lesson 2: Addition Sentences |
| Lesson 3: Sums Through 6 |
| Lesson 4: Related Addition Facts |
| Lesson 5: Sums of 7 and 8 |
| Lesson 6: Sums of 9 and 10 |
| Lesson 7: Sums of 11 and 12 |
| Lesson 8: Other Names for Numbers |
| Lesson 9: Problem Solving, Read and Write in Math: Find Hidden Information |
| Lesson 10: Number-Line Addition |
| Lesson 11: Add: Use Patterns |
| Lesson 12: Doubles |
| Lesson 13: Doubles +1 |
| Lesson 14: Addition Practice |
| Lesson 15: Add Three Numbers |
| Lesson 16: Addition Strategies with Three Addends |
| Lesson 17: Problem-Solving Strategy: Write a Number Sentence |
| Lesson 18: Problem-Solving Applications: Mixed Strategies |
| Chapter 3: Subtraction Strategies and Facts to 12 |
| Lesson 1: Understanding Subtraction |
| Lesson 2: Subtraction Sentences |
| Lesson 3: Subtract from 6 or Less |
| Lesson 4: All or Zero |
| Lesson 5: Subtract from 7 and 8 |
| Lesson 6: Subtract from 9 and 10 |
| Lesson 7: Subtract from 11 and 12 |
| Lesson 8: Number-Line Subtraction |
| Lesson 9: Rules and Patterns |
| Lesson 10: Related Subtraction Facts |
| Lesson 11: Relate Addition and Subtraction |
| Lesson 12: Check by Adding |
| Lesson 13: Fact Families |
| Lesson 14: Find Missing Addends |
| Lesson 15: Subtract to Compare |
| Lesson 16: Problem Solving, Read and Write in Math: Use More Than One Step |
| Lesson 17: Mixed Practice |
| Lesson 18: Problem-Solving Strategy: Choose the Operation |
| Lesson 19: Problem-Solving Applications: Mixed Strategies |
| Chapter 4: Data and Graphs: Using Operations |
| Lesson 1: Venn Diagrams |
| Lesson 2: Tally Charts |
| Lesson 3: Real Graphs |
| Lesson 4: Picture Graphs |
| Lesson 5: Pictographs |
| Lesson 6: Bar Graphs |
| Lesson 7: Surveys |
| Lesson 8: Range |
| Lesson 9: Mode |
| Lesson 10: Median |
| Lesson 11: Problem Solving, Read and Write in Math: Understand Math Words |
| Lesson 12: Problem-Solving Strategy: Use a Graph |
| Lesson 13: Problem-Solving Applications: Mixed Strategies |
| Chapter 5: Place Value to 100 |
| Lesson 1: Tens and Ones |
| Lesson 2: Tens Through One Hundred |
| Lesson 3: Numbers 11 Through 19 |
| Lesson 4: Numbers 20 Through 39 |
| Lesson 5: Numbers 40 Through 59 |
| Lesson 6: Numbers 60 Through 89 |
| Lesson 7: Numbers 90 Through 100 |
| Lesson 8: Estimate Quantities |
| Lesson 9: Place Value of Digits |
| Lesson 10: Expanded Form |
| Lesson 11: One Less, One More |
| Lesson 12: Identify Before, Between, After |
| Lesson 13: Compare Numbers |
| Lesson 14: Order Numbers |
| Lesson 15: Hundred-Chart Patterns |
| Lesson 16: 10 Less, 10 More |
| Lesson 17: Problem Solving, Read and Write in Math: Read a Table |
| Lesson 18: Even and Odd |
| Lesson 19: Count by 5s |
| Lesson 20: Count by 2s |
| Lesson 21: Problem-Solving Strategy: Logical Reasoning |
| Lesson 22: Problem-Solving Applications: Mixed Strategies |
| Chapter 6: Extending Addition and Subtraction Facts |
| Lesson 1: Sums Through 14 |
| Lesson 2: Sums Through 16 |
| Lesson 3: Sums Through 18 |
| Lesson 4: Problem Solving, Read and Write in Math: Read a Map |
| Lesson 5: Subtract from 13 and 14 |
| Lesson 6: Subtract from 16 or Less |
| Lesson 7: Subtract from 18 or Less |
| Lesson 8: More Fact Families |
| Lesson 9: Three Addends |
| Lesson 10: Extending Facts to 20 |
| Lesson 11: Missing Part of a Number Sentence |
| Lesson 12: Problem-Solving Strategy: Make a Table |
| Lesson 13: Problem-Solving Applications: Mixed Strategies |
| Chapter 7: Geometry |
| Lesson 1: Open and Closed Figures |
| Lesson 2: Sides and Corners |
| Lesson 3: Sorting Plane Figures |
| Lesson 4: Ways to Make Figures |
| Lesson 5: Solid Figures |
| Lesson 6: Attributes of Solid Figures |
| Lesson 7: Plane Figures and Solid Figures |
| Lesson 8: Graphing Attributes |
| Lesson 9: Roll, Slide, and Stack |
| Lesson 10: Slides and Flips |
| Lesson 11: Slides and Turns |
| Lesson 12: Pattern Rules |
| Lesson 13: Problem Solving, Read and Write in Math: Understand Directions |
| Lesson 14: Give and Follow Directions |
| Lesson 15: Same Shape and Size |
| Lesson 16: Symmetry |
| Lesson 17: Problem-Solving Strategy: Find/Use a Pattern |
| Lesson 18: Problem-Solving Applications: Mixed Strategies |
| Chapter 8: Money and Time |
| Lesson 1: Nickels and Pennies |
| Lesson 2: Dimes and Pennies |
| Lesson 3: Quarters and Pennies |
| Lesson 4: Count On by Dimes and Nickels |
| Lesson 5: Count Mixed Coins |
| Lesson 6: Equal Amounts |
| Lesson 7: Spending Money |
| Lesson 8: One Dollar |
| Lesson 9: Hour |
| Lesson 10: Half Hour |
| Lesson 11: Time Patterns |
| Lesson 12: Elapsed Time |
| Lesson 13: Estimate Time |
| Lesson 14: Order Events |
| Lesson 15: Ordinals to 31st |
| Lesson 16: Calendar |
| Lesson 17: Problem Solving, Read and Write in Math: Read a Schedule |
| Lesson 18: Problem-Solving Strategy: Logical Reasoning |
| Lesson 19: Problem-Solving Applications: Mixed Strategies |
| Chapter 9: Measurement |
| Lesson 1: Length and Height: Nonstandard Units |
| Lesson 2: Estimate with Nonstandard Units |
| Lesson 3: Perimeter |
| Lesson 4: Compare Lengths |
| Lesson 5: Inches |
| Lesson 6: Feet |
| Lesson 7: Problem Solving, Read and Write in Math: Find Hidden Information |
| Lesson 8: Capacity: Nonstandard Units |
| Lesson 9: Cups and Pints |
| Lesson 10: Cups, Pints, and Quarts |
| Lesson 11: Weight: Nonstandard Units |
| Lesson 12: Pounds |
| Lesson 13: Centimeters |
| Lesson 14: Liters |
| Lesson 15: Kilograms |
| Lesson 16: Temperature |
| Lesson 17: Seasons |
| Lesson 18: Choose a Measuring Tool |
| Lesson 19: Problem-Solving Strategy: Make a Model |
| Lesson 20: Problem-Solving Strategy: Mixed Strategies |
| Chapter 10: Addition: Two-Digit Numbers |
| Lesson 1: Add Tens and Dimes |
| Lesson 2: Add Ones and Tens Using Models |
| Lesson 3: Add Ones and Tens Without Models |
| Lesson 4: Add Money |
| Lesson 5: Add Ones or Tens |
| Lesson 6: Nearest Ten |
| Lesson 7: Estimate Sums |
| Lesson 8: Problem Solving, Read and Write in Math: Use More Than One Step |
| Lesson 9: Regroup Ones as Tens Using Models |
| Lesson 10: Regroup Ones as Tens Using a Chart |
| Lesson 11: Regroup Money |
| Lesson 12: Problem-Solving Strategy: Guess and Test |
| Lesson 13: Problem-Solving Application: Mixed Strategies |
| Chapter 11: Subtraction: Two-Digit Numbers |
| Lesson 1: Subtract Tens and Dimes |
| Lesson 2: Subtract Ones and Tens Using Models |
| Lesson 3: Subtract Ones and Tens Without Models |
| Lesson 4: Subtract Money |
| Lesson 5: Subtract Ones or Tens |
| Lesson 6: Problem Solving, Read and Write in Math: Ask a Question |
| Lesson 7: Estimate Differences |
| Lesson 8: Regroup Tens as Ones Using Models |
| Lesson 9: Regroup Tens as Ones Using a Chart |
| Lesson 10: Regroup Dimes as Pennies |
| Lesson 11: Add and Subtract Mentally |
| Lesson 12: Balance Number Sentences |
| Lesson 13: Missing Operations |
| Lesson 14: Problem-Solving Strategy: Guess and Test |
| Lesson 15: Problem-Solving Application: Mixed Strategies |
| Chapter 12: Fractions and Probability |
| Lesson 1: Equal Parts |
| Lesson 2: One Half, 1/2 |
| Lesson 3: One Third, 1/3 |
| Lesson 4: One Fourth, 1/4 |
| Lesson 5: Part of a Set |
| Lesson 6: Problem Solving, Read and Write in Math: Understand Math Words |
| Lesson 7: Certain, Possible, Impossible |
| Lesson 8: More, Less, or Equally Likely |
| Lesson 9: Arrangements |
| Lesson 10: Problem-Solving Strategy: Make a Model/Draw a Picture |
| Lesson 11: Problem-Solving Applications: Mixed Strategies |