Section 1: Place Value in Whole Numbers

Section 2: Reading Word Problems Carefully

Section 1: Thinking About Numbers by Place Value

Section 2: Reading Important Information

Section 1: Addition Problems in Expanded Form

Section 2: Finding What the Problem Is Asking For

Section 1: Expanded Addition

Section 2: Using Bar Graphs to Display Data

Section 1: Creating Bar Graphs

Section 1: More Expanded Addition

Section 2: Analyzing Data in a Bar Graph

Section 1: Regrouping in Expanded Addition

Section 2: Finding Information in Tables

Section 1: Comparing Methods of Regrouping

Section 2: Creating a Graph From a Table of Data

Section 1: More Methods of Regrouping

Section 2: Posing Questions From a Graph

Section 1: Numbers on a Number Line

Section 1: Estimating Sums by Rounding

Section 2: Using Rounded Numbers in Bar Graphs

Section 1: Horizontal Expanded Addition

Section 2: Horizontal Bar Graphs

Section 1: Horizontal Addition With Hundreds

Section 2: Collecting Data and Constructing Graphs

Section 1: Creating a Pictograph

Section 1: Addition and Division Fact Families

Section 2: Answering the Right Question

Section 1: Expanded Division

Section 2: Analyzing Data Using Division

Section 1: Expanded Division With Regrouping

Section 2: Locating Information in a Table

Section 1: More Regrouping in Division

Section 2: Working With Tables and Graphs

Section 1: Traditional Division

Section 1: Estimating Differences

Section 2: Making Sense of Graphs and Tables

Section 1: Estimating to Check Answers

Section 2: Checking Answers in Word Problems

Section 1: Quarter Rounding

Section 2: Estimating in Word Problems

Section 1: More Estimating Differences

Section 2: Using Estimation to Check a Bill

Section 1: Common Division Errors

Section 1: Using Addition to Check Division

Section 2: Understanding Income, Expenses, and Profit

Section 1: Zeros in Division

Section 2: Understanding Budgets

Section 1: Good Number Sense

Section 2: Solving With Estimation

Section 1: Writing About What We Have Learned

Section 2: Writing Good Word Problems

Section 1: Basic and Extended Multiplication Facts

Section 2: Metric Rulers

Section 1: Factoring Out a 10

Section 2: Multiplying Side Lengths

Section 1: Factoring Out Powers of 10

Section 2: Estimating Length

Section 1: Expanded Multiplication

Section 2: Distance on a Map

Section 1: More Expanded Multiplication

Section 1: Multiplying Two Multidigit Numbers

Section 2: Estimating Measurements

Section 1: Comparing Methods of Multiplication

Section 2: Mental Math Using Multiplication

Section 1: Estimating Products

Section 2: Rates

Section 1: Common Errors in Multiplication

Section 2: More Rates

Section 1: More Estimation of Products

Section 1: More Estimation With Multidigit Factors

Section 2: Rate of Production

Section 1: Scale Drawings

Section 1: Area Models of Multiplication

Section 1: Another Way to Think About Area Models and Multiplication

Section 1: Multiplication and Division Fact Families

Section 2: Metric Rulers and Division

Section 1: Basic and Extended Division Facts

Section 2: Understanding Equal Groups

Section 1: Facts and Extended Facts on the Number Line

Section 2: Powers of 10 on the Number Line

Section 1: Division's Two Big Questions: How Many Groups? and How Many in Each Group?

Section 2: How Word Problems Ask Questions About Division

Section 1: Division and Area Models

Section 1: What Makes Long Division Difficult?

Section 2: Using Basic Division Questions to Solve Word Problems

Section 1: Place Value and Division in the Hundreds

Section 2: Place-Value Coins

Section 1: Regrouping in Division

Section 2: More Place-Value Coins

Section 1: Remainders

Section 2: Interpreting Remainders in Word Problems

Section 1: Traditional Long Division

Section 1: Using Near Extended Facts to Estimate

Section 2: Area Models and Remainders

Section 1: When Remainders Are Important

Section 1: Division and Calculators

Section 2: Making Decisions About Remainders in Word Problems

Section 1: Finding Division Errors

Section 2: Multiplication and Division Word Problems

Section 1: Arrays of Numbers 1 to 25

Section 2: Irregularly Shaped Objects

Section 1: Area Formulas for Squares and Rectangles

Section 1: From Arrays to Factors

Section 2: Area Formulas for Triangles and Parallelograms

Section 1: Factor Rainbows

Section 2: Applying Area Formulas

Section 1: Composite and Prime Numbers

Section 1: Understanding Prime Numbers

Section 2: Perimeter

Section 1: Prime Factors

Section 2: Different Shapes, Same Perimeter

Section 1: More Practice on Prime Factor Trees

Section 2: Same Perimeter, Different Area

Section 1: Comparing Area and Perimeter

Section 1: Common Errors in Prime Factorization

Section 1: Divisibility Rules for 2, 5, and 10

Section 2: Patterns in Area and Perimeter

Section 1: Divisibility Rules for 3 and 6

Section 2: Finding Area and Perimeter of Irregular Shapes

Section 1: Practice With Divisibility Rules

Section 2: More Strategies for Finding Area

Section 1: Prime Factorization for Large Numbers

Section 2: Looking for Patterns

Section 1: Finding Common Factors

Section 2: Classifying Shapes

Section 1: More Practice Finding Common Factors

Section 2: Reclassifying Shapes

Section 1: Greatest Common Factor

Section 2: Tessellations

Section 1: More Practice With The GCF

Section 2: Congruent Shapes

Section 1: Prime Factor Trees and the GCF

Section 1: More Practice With Prime Factor Trees and the GCF

Section 2: Making Congruent Shapes

Section 1: Even and Odd Numbers

Section 2: Similarity

Section 1: Square Numbers

Section 2: The Geometry of Square Numbers

Section 1: Square Numbers and Odd Numbers

Section 2: Expanding and Contracting Triangles

Section 1: Triangular Numbers

Section 2: Tangrams

Section 1: Exponents

Section 2: More Tangrams

Section 1: Patterns With Exponents

Section 2: Translations, Reflections, and Rotations

Section 1: More Exponent Patterns

Section 2: Symmetry

Section 1: Common Multiples

Section 1: Least Common Multiple (LCM)

Section 2: Symmetry and Mobiles

Section 1: Creating Mobiles

Section 1: Applications of LCM

Section 2: Rotational Symmetry

Section 1: Properties of Numbers

Section 2: More Rotational Symmetry

Section 1: Fractional Parts on a Number Line

Section 2: Finding Averages

Section 1: Fractional and Decimal Parts Between 0 and 1

Section 2: Estimating Averages

Section 1: Fair Shares

Section 2: Computing the Mean and Range

Section 1: Numerator and Denominator

Section 2: The Median in Data

Section 1: Outliers in Data

Section 1: Fractions Equal To, Less Than, and Greater Than 1

Section 2: Comparing Tables of Data

Section 1: Estimating Fractional Parts

Section 2: Comparing Data in Tables

Section 1: Surveying Students - Fractions and Statistics

Section 2: Stem-and-Leaf Plots

Section 1: Estimating Fractional Parts on a Number Line

Section 2: Creating Stem-and-Leaf Plots

Section 1: Comparing Fractions: Which One Is Bigger?

Section 1: Fraction Bars

Section 2: Finding the Median on a Stem-and-Leaf Plot

Section 1: Equivalent Fractions

Section 2: Line Plots

Section 1: Identifying Equivalent Fractions

Section 1: Fraction Bars and the Number Line

Section 2: Means, Medians, and Line Plots

Section 1: Same Denominator

Section 2: Everyday Measurements

Section 1: Working With Fractions Greater Than 1

Section 2: Measuring Time

Section 1: More With Division of Fractions

Section 2: More With Converting Units

Section 1: Common Denominators

Section 2: Measuring Dry Weight

Section 1: Using More Than One Table of Information

Section 1: Multiplying Fractions by 1

Section 2: More Measuring Using Two Tables

Section 1: Fractions on the Ruler

Section 2: Fractions and Line Plots

Section 1: Finding Common Denominators for Two Fractions

Section 2: More Fractions and Line Plots

Section 1: Write a Word Problem Using Common Conversions