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| Unit 1: Addition and Subtraction Within 20 |
| Big Idea 1 – Strategies for Addition and Subtraction |
| 1-1: Represent Addition and Subtraction |
| 1-2: Relate Addition and Subtraction |
| 1-3: Make-a-Ten Strategies |
| 1-4: Relate Unknown Addends and Subtraction |
| 1-5: More Practice with Unknown Addends and Teen Totals |
| 1-6: Odd and Even Numbers |
| 1-7: Strategies Using Doubles |
| 1-8: Equations, Equation Chains, and Vertical Form |
| 1-9: Add Three or Four Addends |
| Big Idea 2 – Addition and Subtraction Situations |
| 1-10: Add To and Take From Word Problems |
| 1-11: Add To and Take From Problems — Unknown in All Positions |
| 1-12: Put Together/Take Apart Problems |
| 1-13: Special Put Together/Take Apart Problems |
| 1-14: Compare Word Problems |
| 1-15: More Compare Word Problems |
| 1-16: Mixed Word Problems |
| Big Idea 3 – More Complex Situations |
| 1-17: Problems with Not Enough, Extra, or Hidden Information |
| 1-18: More Complex Compare Problems |
| 1-19: Two-Step Word Problems |
| 1-20: Mixed Word Problems |
| 1-21: Focus on Mathematical Practices |
| Unit 2: Addition Within 200 |
| Big Idea 1 – Use Place Value |
| 2-1: Ones, Tens, Hundreds |
| 2-2: Draw Quick Tens and Quick Hundreds |
| 2-3: Represent Numbers in Different Ways |
| 2-4: Combine Ones, Tens, and Hundreds |
| 2-5: Compare Numbers Within 200 |
| Big Idea 2 – Add 2-Digit Numbers |
| 2-6: Explore 2-Digit Addition |
| 2-7: Addition — Show All Totals Method |
| 2-8: Addition — New Groups Below Method |
| 2-9: Practice Addition with Sums over 100 |
| 2-10: Choose an Addition Method |
| Big Idea 3 – Money and Fluency for Addition Within 100 |
| 2-11: Buy with Pennies and Dimes |
| 2-12: Pennies, Nickels, and Dimes |
| 2-13: Fluency: Addition Within 100 |
| 2-14: Add Three or Four 2-Digit Addends |
| 2-15: Focus on Mathematical Practices |
| Unit 3: Length and Shapes |
| Big Idea 1 – Length and Shapes |
| 3-1: Measure Length |
| 3-2: Recognize and Draw Shapes |
| 3-3: Estimate and Measure |
| 3-4: Draw, Estimate, and Measure |
| 3-5: Draw Using Faces |
| Big Idea 2 – Estimate, Measure, and Make Line Plots |
| 3-6: Estimate and Measure with Centimeters |
| 3-7: Estimate and Measure with Inches |
| 3-8: Measure for and Make Line Plots |
| 3-9: Focus on Mathematical Practices |
| Unit 4: Subtract 2-Digit Numbers |
| Big Idea 1 – Totals of Mixed Coins and Bills |
| 4-1: Explore Quarters |
| 4-2: Explore Dollars |
| Big Idea 2 – Multidigit Subtraction Strategies |
| 4-3: Addends and Subtraction |
| 4-4: Subtraction Word Problems |
| 4-5: Two Methods of Subtraction |
| 4-6: Practice and Explain a Method |
| 4-7: Subtract from 200 |
| 4-8: Ungroup from the Left or from the Right |
| 4-9: Zero in the Ones or Tens Place |
| 4-10: Model Subtraction with Money |
| 4-11: Fluency: Subtraction Within 100 |
| Big Idea 3 – Word Problems: Addition and Subtraction Within 100 |
| 4-12: Word Problems with Addition and Subtraction |
| 4-13: Equations with Greater Numbers |
| 4-14: Practice Addition and Subtraction |
| 4-15: Buy and Sell with One Dollar |
| 4-16: Word Problems with Unknown Addends |
| 4-17: More Word Problems with Unknown Addends |
| 4-18: Start Unknown Problems |
| 4-19: Compare Word Problems |
| 4-20: Mixed Word Problems |
| 4-21: Two-Step Problems |
| 4-22: More Two-Step Word Problems |
| 4-23: Focus on Mathematical Practices |
| Unit 5: Time, Graphs, and Word Problems |
| Big Idea 1 – Time |
| 5-1: Hours and A.M. or P.M. |
| 5-2: Hours and Minutes |
| Big Idea 2 – Picture Graphs |
| 5-3: Discuss Picture Graphs |
| 5-4: Read Picture Graphs |
| Big Idea 3 – Bar Graphs |
| 5-5: Introduce Bar Graphs |
| 5-6: Read Bar Graphs |
| 5-7: Solve Problems Using a Bar Graph |
| 5-8: Collect and Graph Data |
| 5-9: Make Graphs and Interpret Data |
| 5-10: Focus on Mathematical Practices |
| Unit 6: 3-Digit Addition and Subtraction |
| Big Idea 1 – Understanding Numbers to 1,000 |
| 6-1: Count Numbers to 1,000 |
| 6-2: Place Value |
| 6-3: Compare Numbers Within 999 |
| 6-4: Count by Ones and by Tens |
| 6-5: Add Ones, Tens, and Hundreds |
| Big Idea 2 – Adding to 1,000 |
| 6-6: 3-Digit Addition |
| 6-7: Discuss 3-Digit Addition |
| 6-8: Word Problems: Unknown Addends |
| Big Idea 3 – 3-Digit Subtraction |
| 6-9: Subtract from Hundreds Numbers |
| 6-10: Subtract from Numbers with Zeros |
| 6-11: Subtract from Any 3-Digit Number |
| 6-12: Practice Ungrouping |
| Big Idea 4 – 3-Digit Addition and Subtraction |
| 6-13: Relationships Between Addition and Subtraction Methods |
| 6-14: Mixed Addition and Subtraction Word Problems |
| 6-15: Focus on Mathematical Practices |
| Unit 7: Arrays, Equal Shares, and Adding or Subtracting Lengths |
| Big Idea 1 – Arrays and Equal Shares |
| 7-1: Arrays, Partitioned Rectangles, and Equal Shares |
| 7-2: Find Equal Shares |
| Big Idea 2 – Relate Addition and Subtraction to Length |
| 7-3: Length Word Problems and Number Line Diagrams |
| 7-4: Add Three and Four Lengths |
| 7-5: More Length Word Problems |
| 7-6: Focus on Mathematical Practices |