Chapter 1: Numeration


Apps 
Videos 
Practice Now 
Lesson 1: Thousands

apps 
videocam 
create 
Lesson 2: Millions

apps 
videocam 
create 
Lesson 3: Comparing and Ordering Whole Numbers

apps 
videocam 
create 
Lesson 4: Rounding Whole Numbers

apps 
videocam 
create 
Lesson 5: Using Money to Understand Decimals

apps 
videocam 
create 
Lesson 6: Counting Money and Making Change

apps 
videocam 
create 
Lesson 7: Problem Solving: Make an Organized List

apps 
videocam 
create 
Chapter 2: Adding and Subtracting Whole Numbers


Apps 
Videos 
Practice Now 
Lesson 1: Using Mental Math to Add and Subtract

apps 
videocam 
create 
Lesson 2: Estimating Sums and Differences of Whole Numbers

apps 
videocam 
create 
Lesson 3: Problem Solving: Missing or Extra Information

apps 
videocam 
create 
Lesson 4: Adding Whole Numbers

apps 
videocam 
create 
Lesson 5: Subtracting Whole Numbers

apps 
videocam 
create 
Lesson 6: Subtracting Across Zeros

apps 
videocam 
create 
Lesson 7: Problem Solving: Draw a Picture and Write an Equation

apps 
videocam 
create 
Chapter 3: Multiplication Meanings and Facts


Apps 
Videos 
Practice Now 
Lesson 1: Meanings of Multiplication

apps 
videocam 
create 
Lesson 2: Patterns for Facts

apps 
videocam 
create 
Lesson 3: Multiplication

apps 
videocam 
create 
Lesson 4: 3 and 4 as Factors

apps 
videocam 
create 
Lesson 5: 6, 7, and 8 as Factors

apps 
videocam 
create 
Lesson 6: 10, 11, and 12 as Factors

apps 
videocam 
create 
Lesson 7: Problem Solving: Draw a Picture and Write an Equation

apps 
videocam 
create 
Chapter 4: Division Meanings and Facts


Apps 
Videos 
Practice Now 
Lesson 1: Meanings of Division

apps 
videocam 
create 
Lesson 2: Relating Multiplication and Division

apps 
videocam 
create 
Lesson 3: Special Quotients

apps 
videocam 
create 
Lesson 4: Using Multiplication Facts to Find Division Facts

apps 
videocam 
create 
Lesson 5: Problem Solving: Draw a Picture and Write an Equation

apps 
videocam 
create 
Chapter 5: Multiplying by 1Digit Numbers


Apps 
Videos 
Practice Now 
Lesson 1: Multiplying by Multiples of 10 and 100

apps 
videocam 
create 
Lesson 2: Using Mental Math to Multiply

apps 
videocam 
create 
Lesson 3: Using Rounding to Estimate

apps 
videocam 
create 
Lesson 4: Problem Solving: Reasonableness

apps 
videocam 
create 
Lesson 5: Using an Expanded Algorithm

apps 
videocam 
create 
Lesson 6: Multiplying 2Digit by 1Digit Numbers

apps 
videocam 
create 
Lesson 7: Multiplying 3Digit by 1Digit Numbers

apps 
videocam 
create 
Lesson 8: Problem Solving: Draw a Picture and Write an Equation

apps 
videocam 
create 
Chapter 6: Patterns and Expressions


Apps 
Videos 
Practice Now 
Lesson 1: Variables and Expressions

apps 
videocam 
create 
Lesson 2: Addition and Subtraction Expressions

apps 
videocam 
create 
Lesson 3: Multiplication and Division Expressions

apps 
videocam 
create 
Lesson 4: Problem Solving: Use Objects and Reasoning

apps 
videocam 
create 
Chapter 7: Multiplying by 2Digit Numbers


Apps 
Videos 
Practice Now 
Lesson 1: Using Mental Math to Multiply 2Digit Numbers

apps 
videocam 
create 
Lesson 2: Estimating Products

apps 
videocam 
create 
Lesson 3: Arrays and an Expanded Algorithm

apps 
videocam 
create 
Lesson 4: Multiplying 2Digit Numbers by Multiples of Ten

apps 
videocam 
create 
Lesson 5: Multiplying 2Digit by 2Digit Numbers

apps 
videocam 
create 
Lesson 6: Special Cases

apps 
videocam 
create 
Lesson 7: Problem Solving: TwoQuestion Problems

apps 
videocam 
create 
Chapter 8: Dividing by 1Digit Divisors


Apps 
Videos 
Practice Now 
Lesson 1: Using Mental Math to Divide

apps 
videocam 
create 
Lesson 2: Estimating Quotients

apps 
videocam 
create 
Lesson 3: Dividing with Remainders

apps 
videocam 
create 
Lesson 4: Connecting Models and Symbols

apps 
videocam 
create 
Lesson 5: Dividing 2Digit by 1Digit Numbers

apps 
videocam 
create 
Lesson 6: Dividing 3Digit by 1Digit Numbers

apps 
videocam 
create 
Lesson 7: Deciding Where to Start Dividing

apps 
videocam 
create 
Lesson 8: Factors

apps 
videocam 
create 
Lesson 9: Prime and Composite Numbers

apps 
videocam 
create 
Lesson 10: Problem Solving: MultipleStep Problems

apps 
videocam 
create 
Chapter 9: Lines, Angles, and Shapes


Apps 
Videos 
Practice Now 
Lesson 1: Points, Lines, and Planes

apps 
videocam 
create 
Lesson 2: Line Segments, Rays, and Angles

apps 
videocam 
create 
Lesson 3: Measuring Angles

apps 
videocam 
create 
Lesson 4: Polygons

apps 
videocam 
create 
Lesson 5: Triangles

apps 
videocam 
create 
Lesson 6: Quadrilaterals

apps 
videocam 
create 
Lesson 7: Problem Solving: Make and Test Generalizations

apps 
videocam 
create 
Chapter 10: Understanding Fractions


Apps 
Videos 
Practice Now 
Lesson 1: Regions and Sets

apps 
videocam 
create 
Lesson 2: Fractions and Division

apps 
videocam 
create 
Lesson 3: Estimating Fractional Amounts

apps 
videocam 
create 
Lesson 4: Equivalent Fractions

apps 
videocam 
create 
Lesson 5: Fractions in Simplest Form

apps 
videocam 
create 
Lesson 6: Improper Fractions and Mixed Numbers

apps 
videocam 
create 
Lesson 7: Comparing Fractions

apps 
videocam 
create 
Lesson 8: Ordering Fractions

apps 
videocam 
create 
Lesson 9: Problem Solving: Writing to Explain

apps 
videocam 
create 
Chapter 11: Adding and Subtracting Fractions


Apps 
Videos 
Practice Now 
Lesson 1: Adding and Subtracting Fractions with Like Denominators

apps 
videocam 
create 
Lesson 2: Adding Fractions with Unlike Denominators

apps 
videocam 
create 
Lesson 3: Subtracting Fractions with Unlike Denominators

apps 
videocam 
create 
Lesson 4: Problem Solving: Draw a Picture and Write an Equation

apps 
videocam 
create 
Chapter 12: Understanding Decimals


Apps 
Videos 
Practice Now 
Lesson 1: Decimal Place Value

apps 
videocam 
create 
Lesson 2: Comparing and Ordering Decimals

apps 
videocam 
create 
Lesson 3: Fractions and Decimals

apps 
videocam 
create 
Lesson 4: Fractions and Decimals on a Number Line

apps 
videocam 
create 
Lesson 5: Mixed Numbers and Decimals on a Number Line

apps 
videocam 
create 
Lesson 6: Problem Solving: Draw a Picture

apps 
videocam 
create 
Chapter 13: Operations with Decimals


Apps 
Videos 
Practice Now 
Lesson 1: Rounding Decimals

apps 
videocam 
create 
Lesson 2: Estimating Sums and Differences of Decimals

apps 
videocam 
create 
Lesson 3: Models for Adding and Subtracting Decimals

apps 
videocam 
create 
Lesson 4: Adding and Subtracting Decimals

apps 
videocam 
create 
Lesson 5: Multiplying a Whole Number and a Decimal

apps 
videocam 
create 
Lesson 6: Dividing a Decimal by a Whole Number

apps 
videocam 
create 
Lesson 7: Problem Solving: Try, Check, and Revise

apps 
videocam 
create 
Chapter 14: Area and Perimeter


Apps 
Videos 
Practice Now 
Lesson 1: Understanding Area

apps 
videocam 
create 
Lesson 2: Area of Squares and Rectangles

apps 
videocam 
create 
Lesson 3: Area of Irregular Shapes

apps 
videocam 
create 
Lesson 4: Area of Parallelograms

apps 
videocam 
create 
Lesson 5: Area of Triangles

apps 
videocam 
create 
Lesson 6: Perimeter

apps 
videocam 
create 
Lesson 7: Same Perimeter, Different Area

apps 
videocam 
create 
Lesson 8: Same Area, Different Perimeter

apps 
videocam 
create 
Lesson 9: Problem Solving: Solve a Simpler Problem and Make a Table

apps 
videocam 
create 
Chapter 15: Solids


Apps 
Videos 
Practice Now 
Lesson 1: Solids

apps 
videocam 
create 
Lesson 2: Views of Solids: Nets

apps 
videocam 
create 
Lesson 3: View of Solids: Perspective

apps 
videocam 
create 
Lesson 4: Measurement: Volume

apps 
videocam 
create 
Lesson 5: Problem Solving: Look for a Pattern

apps 
videocam 
create 
Chapter 16: Measurement, Time, and Temperature


Apps 
Videos 
Practice Now 
Lesson 1: Using Customary Units

apps 
videocam 
create 
Lesson 2: Customary Units of Capacity

apps 
videocam 
create 
Lesson 3: Units of Weight

apps 
videocam 
create 
Lesson 4: Changing Customary Units

apps 
videocam 
create 
Lesson 5: Using Metric Units of Length

apps 
videocam 
create 
Lesson 6: Metric Units of Capacity

apps 
videocam 
create 
Lesson 7: Units of Mass

apps 
videocam 
create 
Lesson 8: Changing Metric Units

apps 
videocam 
create 
Lesson 9: Units of Time

apps 
videocam 
create 
Lesson 10: Elapsed Time

apps 
videocam 
create 
Lesson 11: Temperature

apps 
videocam 
create 
Lesson 12: Problem Solving: Work Backward

apps 
videocam 
create 
Chapter 17: Data and Graphs


Apps 
Videos 
Practice Now 
Lesson 1: Data from Surveys

apps 
videocam 
create 
Lesson 2: Interpreting Graphs

apps 
videocam 
create 
Lesson 3: Line Plots

apps 
videocam 
create 
Lesson 4: Ordered Pairs

apps 
videocam 
create 
Lesson 5: Line Graphs

apps 
videocam 
create 
Lesson 6: Mean

apps 
videocam 
create 
Lesson 7: Median, Mode, and Range

apps 
videocam 
create 
Lesson 8: StemandLeaf Plots

apps 
videocam 
create 
Lesson 9: Reading Circle Graphs

apps 
videocam 
create 
Lesson 10: Problem Solving: Make a Graph

apps 
videocam 
create 
Chapter 18: Equations


Apps 
Videos 
Practice Now 
Lesson 1: Equal or Not Equal

apps 
videocam 
create 
Lesson 2: Solving Addition and Subtraction Equations

apps 
videocam 
create 
Lesson 3: Solving Multiplication and Division Equations

apps 
videocam 
create 
Lesson 4: Understanding Inequalities

apps 
videocam 
create 
Lesson 5: Problem Solving: Work Backward

apps 
videocam 
create 
Chapter 19: Transformations, Congruence, and Symmetry


Apps 
Videos 
Practice Now 
Lesson 1: Translations

apps 
videocam 
create 
Lesson 2: Reflections

apps 
videocam 
create 
Lesson 3: Rotations

apps 
videocam 
create 
Lesson 4: Congruent Figures

apps 
videocam 
create 
Lesson 5: Line Symmetry

apps 
videocam 
create 
Lesson 6: Rotational Symmetry

apps 
videocam 
create 
Lesson 7: Problem Solving: Draw a Picture

apps 
videocam 
create 
Chapter 20: Probability


Apps 
Videos 
Practice Now 
Lesson 1: Finding Combinations

apps 
videocam 
create 
Lesson 2: Outcomes and Tree Diagrams

apps 
videocam 
create 
Lesson 3: Writing Probability as a Fraction

apps 
videocam 
create 
Lesson 4: Problem Solving: Use Reasoning

apps 
videocam 
create 