Lesson 1: Representing Numbers

Lesson 2: Ways to Name Numbers

Lesson 3: Greater Numbers

Lesson 4: Understanding Number Lines

Lesson 5: Counting on the Number Lines

Lesson 6: Comparing Numbers

Lesson 7: Ordering Numbers

Lesson 8: Make an Organized List

Lesson 1: Addition Meaning and Properties

Lesson 2: Subtraction Meanings

Lesson 3: Using Mental Math to Add

Lesson 4: Using Mental Math to Subtract

Lesson 5: Rounding

Lesson 6: Estimating Sums

Lesson 7: Estimating Differences

Lesson 8: Making Sense of Addition and Subtraction Equations

Lesson 9: Reasonableness

Lesson 1: Adding with an Expanded Algorithm

Lesson 2: Models for Adding 3-Digit Numbers

Lesson 3: Adding 3-Digit Numbers

Lesson 4: Adding 3 or More Numbers

Lesson 5: Draw a Picture

Lesson 6: Subtracting with an Expanded Algorithm

Lesson 7: Models for Subtracting 3-Digit Numbers

Lesson 8: Subtracting 3-Digit Numbers

Lesson 9: Subtracting Across Zeros

Lesson 10: Draw a Picture and Write a Number Sentence

Lesson 1: Multiplication as Repeated Addition

Lesson 2: Arrays and Multiplication

Lesson 3: The Commutative Property

Lesson 4: Writing Multiplication Stories

Lesson 5: Writing to Explain

Lesson 1: 2 and 5 as Factors

Lesson 2: 9 as a Factor

Lesson 3: Multiplying with 0 and 1

Lesson 4: Patterns for Facts

Lesson 5: 10 as a Factor

Lesson 6: Multiplying by Multiples of 10

Lesson 7: Two-Question Problems

Lesson 1: The Distributive Property

Lesson 2: 3 as a Factor

Lesson 3: 4 as a Factor

Lesson 4: 6 and 7 as Factors

Lesson 5: 8 as a Factor

Lesson 6: Multiplying with 3 Factors

Lesson 7: Multiplication Facts

Lesson 8: Multiplying to Find Combinations

Lesson 9: Multiple-Step Problems

Lesson 1: Division as Sharing

Lesson 2: Division as Repeated Subtraction

Lesson 3: Finding Missing Numbers in a Multiplication Table

Lesson 4: Choose an Appropriate Equation

Lesson 5: Writing Division Stories

Lesson 6: Use Objects and Draw a Picture

Lesson 1: Relating Multiplication and Division

Lesson 2: Fact Families with 2, 3, 4, and 5

Lesson 3: Fact Families with 6 and 7

Lesson 4: Fact Families with 8 and 9

Lesson 5: Multiple-Step Problems

Lesson 6: Making Sense of Multiplication and Division Equations

Lesson 7: Dividing with 0 and 1

Lesson 8: Multiplication and Division Facts

Lesson 9: Draw a Picture and Write a Number Sentence

Lesson 1: Dividing Regions into Equal Parts

Lesson 2: Fractions and Regions

Lesson 3: Fractions and Sets

Lesson 4: Fractional Parts of a Set

Lesson 5: Locating Fractions on the Number Line

Lesson 6: Benchmark Fractions

Lesson 7: Fractions and Lengths

Lesson 8: Make a Table and Look for a Pattern

Lesson 1: Using Models to Compare Fractions: Same Denominator

Lesson 2: Using Models to Compare Fractions: Same Numerator

Lesson 3: Comparing Fractions Using Benchmarks

Lesson 4: Comparing Fractions on the Number Line

Lesson 5: Finding Equivalent Fractions

Lesson 6: Equivalent Fractions and the Number Line

Lesson 7: Whole Numbers and Fractions

Lesson 8: Using Fractions

Lesson 9: Draw a Picture

Lesson 1: Lines and Line Segments

Lesson 2: Angles

Lesson 3: Polygons

Lesson 4: Triangles

Lesson 5: Quadrilaterals

Lesson 6: Combining and Separating Shapes

Lesson 7: Making New Shapes

Lesson 8: Solve a Simpler Problem

Lesson 9: Make and Test Generalizations

Lesson 1: Time to the Half Hour and Quarter Hour

Lesson 2: Time to the Minute

Lesson 3: Units of Time

Lesson 4: Elapsed Time

Lesson 5: Work Backward

Lesson 1: Understanding Perimeter

Lesson 2: Tools and Units for Perimeter

Lesson 3: Perimeter of Common Shapes

Lesson 4: Different Shapes with the Same Perimeter

Lesson 5: Try, Check, and Revise

Lesson 1: Covering Regions

Lesson 2: Area and Units

Lesson 3: Standard Units

Lesson 4: Area of Squares and Rectangles

Lesson 5: Area and the Distributive Property

Lesson 6: Solve a Simpler Problem

Lesson 7: Area of Irregular Shapes

Lesson 8: Same Area, Different Perimeter

Lesson 9: Equal Areas and Fractions

Lesson 10: Selecting Appropriate Measurement Units and Tools

Lesson 1: Customary Units of Capacity

Lesson 2: Metric Units of Capacity

Lesson 3: Units of Mass

Lesson 4: Units of Weight

Lesson 5: Draw a Picture

Lesson 1: Line Plots

Lesson 2: Length and Line Plots

Lesson 3: Reading Pictographs and Bar Graphs

Lesson 4: Making Pictographs

Lesson 5: Making Bar Graphs

Lesson 6: Use Tables and Graphs to Draw Conclusions