Chapter 1: Place Value


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Lesson 1: Place Value Through Thousands

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Lesson 2: Compare Numbers

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Lesson 3: Order Numbers

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Lesson 4: Round to the Nearest Ten

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Lesson 5: Round to the Nearest Hundred

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Lesson 6: ProblemSolving Investigation: Use the FourStep Plan

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Chapter 2: Addition


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Lesson 1: Addition Properties

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Lesson 2: Patterns in the Addition Table

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Lesson 3: Addition Patterns

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Lesson 4: Add Mentally

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Lesson 5: Estimate Sums

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Lesson 6: Hands On: Use Models to Add

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Lesson 7: Add ThreeDigit Numbers

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Lesson 8: Add FourDigit Numbers

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Lesson 9: ProblemSolving Investigation: Reasonable Answers

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Chapter 3: Subtraction


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Lesson 1: Subtract Mentally

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Lesson 2: Estimate Differences

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Lesson 3: ProblemSolving Investigation: Estimate or Exact Answer

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Lesson 4: Hands On: Subtract with Regrouping

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Lesson 5: Subtract ThreeDigit Numbers

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Lesson 6: Subtract FourDigit Numbers

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Lesson 7: Subtract Across Zeros

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Chapter 4: Understand Multiplication


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Lesson 1: Hands On: Model Multiplication

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Lesson 2: Multiplication as Repeated Addition

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Lesson 3: Hands On: Multiply with Arrays

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Lesson 4: Arrays and Multiplication

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Lesson 5: ProblemSolving Investigation: Make a Table

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Lesson 6: Use Multiplication to Find Combinations

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Chapter 5: Understand Division


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Lesson 1: Hands On: Model Division

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Lesson 2: Division as Equal Sharing

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Lesson 3: Relate Division and Subtraction

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Lesson 4: Hands On: Relate Division and Multiplication

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Lesson 5: Inverse Operations

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Lesson 6: ProblemSolving Investigation: Use Models

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Chapter 6: Multiplication and Division Patterns


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Lesson 1: Patterns in the Multiplication Table

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Lesson 2: Multiply by 2

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Lesson 3: Divide by 2

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Lesson 4: Multiply by 5

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Lesson 5: Divide by 5

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Lesson 6: ProblemSolving Investigation: Look for a Pattern

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Lesson 7: Multiply by 10

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Lesson 8: Multiples of 10

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Lesson 9: Divide by 10

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Chapter 7: Multiplication and Division


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Lesson 1: Multiply by 3

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Lesson 2: Divide by 3

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Lesson 3: Hands On: Double a Known Fact

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Lesson 4: Multiply by 4

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Lesson 5: Divide by 4

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Lesson 6: ProblemSolving Investigation: Extra or Missing Information

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Lesson 7: Multiply by 0 and 1

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Lesson 8: Divide by 11 and 12

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Chapter 8: Apply Multiplication and Division


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Lesson 1: Multiply by 6

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Lesson 2: Multiply by 7

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Lesson 3: Divide by 6 and 7

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Lesson 4: Multiply by 8

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Lesson 5: Multiply by 9

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Lesson 6: Divide by 8 and 9

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Lesson 7: ProblemSolving Investigation: Make an Organized List

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Lesson 8: Multiply by 11 and 12

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Lesson 9: Divide by 11 and 12

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Chapter 9: Properties and Equations


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Lesson 1: HandsOn: Take Apart to Multiply

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Lesson 2: The Distributive Property

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Lesson 3: HandsOn: Multiply Three Factors

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Lesson 4: The Associative Property

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Lesson 5: Write Expressions

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Lesson 6: Evaluate Expressions

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Lesson 7: Write Equations

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Lesson 8: Solve TwoStep Word Problems

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Lesson 9: ProblemSolving Investigation: Use Logical Reasoning

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