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| Chapter 1: Addition and Subtraction Facts |
| Lesson 1: Addition Concepts |
| Lesson 2: Problem Solving, Read and Write in Math: Find Extra Information |
| Lesson 3: Related Addition Facts |
| Lesson 4: Count On to Add |
| Lesson 5: Extend Facts to 20 |
| Lesson 6: Make 10 to Add |
| Lesson 7: Doubles Facts |
| Lesson 8: Doubles +1, Doubles -1 |
| Lesson 9: Three Addends |
| Lesson 10: Four Addends |
| Lesson 11: Subtraction Concepts |
| Lesson 12: Count Back to Subtract |
| Lesson 13: Related Subtraction Facts |
| Lesson 14: Relate Addition and Subtraction |
| Lesson 15: Use Addition to Check |
| Lesson 16: Count Up to Subtract |
| Lesson 17: Fact Families |
| Lesson 18: Missing Addends |
| Lesson 19: Fact Patterns |
| Lesson 20: Problem-Solving Strategy: Choose the Operation |
| Lesson 21: Problem-Solving Applications: Mixed Strategies |
| Chapter 2: Place Value to 100 |
| Lesson 1: Tens and Ones |
| Lesson 2: Place Value |
| Lesson 3: Number Words Twenty to Forty-Nine |
| Lesson 4: Number Words Fifty to Ninety-Nine |
| Lesson 5: Problem Solving, Read and Write in Math: Find Needed Information |
| Lesson 6: Place Value of Two-Digit Numbers |
| Lesson 7: Expanded Form |
| Lesson 8: Compare Numbers |
| Lesson 9: Order Using a Number Line |
| Lesson 10: Order Using Models |
| Lesson 11: Estimate |
| Lesson 12: Round to the Nearest Ten |
| Lesson 13: Even and Odd Numbers |
| Lesson 14: Count by 3s and 4s |
| Lesson 15: Counting Patterns |
| Lesson 16: Ordinals to 31st |
| Lesson 17: Problem-Solving Strategy: Use Logical Reasoning |
| Lesson 18: Problem-Solving Applications: Mixed Strategies |
| Chapter 3: Data and Graphs: Using Operations |
| Lesson 1: Problem Solving, Read and Write in Math: Read a Table |
| Lesson 2: Pictographs |
| Lesson 3: Bar Graphs |
| Lesson 4: Surveys |
| Lesson 5: Range, Mode, and Median |
| Lesson 6: Understand Data |
| Lesson 7: Compare Data |
| Lesson 8: Circle Graphs |
| Lesson 9: Line Plots |
| Lesson 10: Venn Diagrams |
| Lesson 11: Problem-Solving Strategy: Use a Graph |
| Lesson 12: Problem-Solving Applications: Mixed Strategies |
| Chapter 4: Addition: Two-Digit Numbers |
| Lesson 1: Add Ones and Tens |
| Lesson 2: Mental Math Addition |
| Lesson 3: Regroup Ones as Tens: Use Models |
| Lesson 4: Problem-Solving, Read and Write in Math: Find Hidden Information |
| Lesson 5: Regroup Ones as Tens: Model and Record |
| Lesson 6: Regroup Ones as Tens |
| Lesson 7: Estimate Sums |
| Lesson 8: Rewrite Two-Digit Addition |
| Lesson 9: Three Addends |
| Lesson 10: Add: Choose the Method |
| Lesson 11: Addition Practice |
| Lesson 12: Problem-Solving Strategy: Use More Than One Step |
| Lesson 13: Problem-Solving Applications: Mixed Strategies |
| Chapter 5: Subtraction: Two-Digit Numbers |
| Lesson 1: Subtract Tens and Ones |
| Lesson 2: Mental Math Subtraction |
| Lesson 3: Ways to Make Numbers |
| Lesson 4: Regroup Tens as Ones: Use Models |
| Lesson 5: Regroup Tens as Ones: Model and Record |
| Lesson 6: Regroup Tens as Ones |
| Lesson 7: Estimate Differences |
| Lesson 8: Rewrite Two-Digit Subtraction |
| Lesson 9: Add to Check |
| Lesson 10: Subtraction Practice |
| Lesson 11: Chain Operations |
| Lesson 12: Problem Solving, Read and Write in Math: Ask a Question |
| Lesson 13: Choose the Method |
| Lesson 14: Mixed Practice |
| Lesson 15: Estimate or Exact Answer |
| Lesson 16: Problem-Solving Strategy: Make a Table |
| Lesson 17: Problem-Solving Applications: Mixed Strategies |
| Chapter 6: Geometry |
| Lesson 1: Solid Figures |
| Lesson 2: Faces, Edges, Vertices |
| Lesson 3: Explore Plane Figures |
| Lesson 4: Plane Figures |
| Lesson 5: Sort Figures |
| Lesson 6: Congruent Figures |
| Lesson 7: Lines of Symmetry |
| Lesson 8: Slides and Flips |
| Lesson 9: Turns |
| Lesson 10: Find a Pattern |
| Lesson 11: Ways to Make Figures |
| Lesson 12: Problem-Solving, Read and Write in Math: Understand Math Words |
| Lesson 13: Ordered Pairs |
| Lesson 14: Problem-Solving Strategy: Use a Pattern |
| Lesson 15: Problem-Solving Applications: Mixed Strategies |
| Chapter 7: Money and Time |
| Lesson 1: Pennies, Nickels, and Dimes |
| Lesson 2: Quarters |
| Lesson 3: Half Dollar |
| Lesson 4: Equal Amounts |
| Lesson 5: Compare Money |
| Lesson 6: Make Change |
| Lesson 7: Add and Subtract Money |
| Lesson 8: One Dollar |
| Lesson 9: Dollars and Cents |
| Lesson 10: Hour and Half Hour |
| Lesson 11: Five Minutes |
| Lesson 12: Quarter Hour |
| Lesson 13: Before the Hour |
| Lesson 14: Elapsed Time |
| Lesson 15: Problem-Solving, Read and Write in Math: Read a Schedule |
| Lesson 16: Estimate Time |
| Lesson 17: Calendar |
| Lesson 18: Problem-Solving Strategy: Guess and Test |
| Lesson 19: Problem-Solving Applications: Mixed Strategies |
| Chapter 8: Place Value to 1000 |
| Lesson 1: Hundreds |
| Lesson 2: Hundreds, Tens, and Ones |
| Lesson 3: Place Value of Three-Digit Numbers |
| Lesson 4: Expanded Form with Hundreds, Tens, and Ones |
| Lesson 5: Counting Patterns with 3-Digit Numbers |
| Lesson 6: Compare Numbers to 1000 |
| Lesson 7: Order to 1000 |
| Lesson 8: Problem-Solving, Read and Write in Math: Use a Table |
| Lesson 9: Round to the Nearest Hundred |
| Lesson 10: Problem-Solving Strategy: Make an Organized List |
| Lesson 11: Problem-Solving Applications: Mixed Strategies |
| Chapter 9: Addition and Subtraction: Three-Digit Numbers |
| Lesson 1: Add Hundreds, Tens, and Ones |
| Lesson 2: Count On 1, 10, and 100 |
| Lesson 3: Add: Regroup Ones as Tens |
| Lesson 4: Regroup Tens as Hundreds Using Models |
| Lesson 5: Add: Regroup Tens as Hundreds |
| Lesson 6: Add: Regroup Twice |
| Lesson 7: Add Money: No Regrouping |
| Lesson 8: Problem-Solving, Read and Write in Math: Find Needed Information |
| Lesson 9: Add Money: Regroup Dimes or Pennies |
| Lesson 10: Add Money: Regroup Twice |
| Lesson 11: Subtract Hundreds, Tens, and Ones |
| Lesson 12: Count Back 1, 10, and 100 |
| Lesson 13: Subtract: Regroup Tens as Ones |
| Lesson 14: Regroup Hundreds as Tens Using Models |
| Lesson 15: Subtract: Regroup Hundreds as Tens |
| Lesson 16: Subtract: Regroup Twice |
| Lesson 17: Subtract Money: Regroup Dollars or Dimes |
| Lesson 18: Subtract Money: Regroup Twice |
| Lesson 19: Estimate to Add or Subtract |
| Lesson 20: Problem-Solving Strategy: Use Logical Reasoning |
| Lesson 21: Problem-Solving Applications: Mixed Strategies |
| Chapter 10: Fractions and Probability |
| Lesson 1: Fractions: ½, ¼, ⅛ |
| Lesson 2: More Fractions |
| Lesson 3: Compare Fractions |
| Lesson 4: Order Fractions |
| Lesson 5: Other Fractions |
| Lesson 6: Fractions Equal to 1 |
| Lesson 7: Estimate Fractions |
| Lesson 8: Equal Fractions of a Whole |
| Lesson 9: Part of a Set |
| Lesson 10: Equal Fractions of a Set |
| Lesson 11: Predict Outcomes |
| Lesson 12: How Likely? |
| Lesson 13: Certain, Possible, Impossible |
| Lesson 14: Problem-Solving, Read and Write in Math: Understand Math Words |
| Lesson 15: Problem-Solving Strategy: Draw a Picture |
| Lesson 16: Problem-Solving Applications: Mixed Strategies |
| Chapter 11: Measurement |
| Lesson 1: Nonstandard Units |
| Lesson 2: Inches |
| Lesson 3: Half Inch |
| Lesson 4: Feet and Yards |
| Lesson 5: Cups, Pints, and Quarts |
| Lesson 6: Problem-Solving, Read and Write in Math: Find Hidden Information |
| Lesson 7: Gallons |
| Lesson 8: Ounces and Pounds |
| Lesson 9: Centimeters |
| Lesson 10: Meters |
| Lesson 11: Perimeter |
| Lesson 12: Area |
| Lesson 13: Grams and Kilograms |
| Lesson 14: Liters |
| Lesson 15: Volume |
| Lesson 16: Temperature |
| Lesson 17: Choose Tools and Units of Measure |
| Lesson 18: Problem-Solving Strategy: Use a Map |
| Lesson 19: Problem-Solving Applications: Mixed Strategies |
| Chapter 12: Multiplication and Division |
| Lesson 1: Multiplication as Repeated Addition |
| Lesson 2: Multiply Groups of 2 |
| Lesson 3: Multiply Groups of 3 |
| Lesson 4: Problem-Solving, Read and Write in Math: Visualize |
| Lesson 5: Multiply Groups of 4 |
| Lesson 6: Multiply Groups of 5 |
| Lesson 7: Related Multiplication Facts |
| Lesson 8: Division as Repeated Subtraction |
| Lesson 9: Separate Groups of 2 |
| Lesson 10: Separate Groups of 3 |
| Lesson 11: Separate Groups of 4 |
| Lesson 12: Separate Groups of 5 |
| Lesson 13: Separate with Leftovers |
| Lesson 14: Share with Leftovers |
| Lesson 15: Relate Multiplication and Division |
| Lesson 16: Symbols for Numbers |
| Lesson 17: Solve Number Sentences |
| Lesson 18: Problem-Solving Strategy: Choose the Operation |
| Lesson 19: Problem-Solving Applications: Mixed Strategies |