Grade 3 (Topics)

1. 3 Addition of Whole Numbers Part I
   • 3.1 Addition of Whole Numbers
   • 3.2 Exploring Addition on a Hundred Chart
   • 3.3 Addition Using Mental Math
   • 3.4 How to Round
   • 3.5 How to Estimate Sums
   • 3.6 Exploring Mixed Problem Solving
   • 3.7 Adding Three 2-Digit Numbers

1. 1 Learning Numeration Part I
   • 1.1 Numbers to Hundred
   • 1.2 Numbers to Thousands
   • 1.3A Investigating Larger Numbers
   • 1.3B Investigating larger numbers up to a Hundred thousands
   • 1.3C Number in Abacus
   • 1.4 Odd and Even Numbers
   • 1.5 Different Ways to Name Numbers
   • 1.6 Number Comparison
2. 2 Learning Numeration Part II
   • 2.1 Comparing Quantities in Word Problems
   • 2.2 Number Order
   • 2.3 Introducing Decimal for Money
   • 2.4 Learning What Changes to Expect
   • 2.5 Skip Counting by 10, 20, 50, & 100 in Ascending & Descending Order
   • 2.6 Skip Counting Puzzles
3. 3 Addition of Whole Numbers Part I
   • 3.1 Addition of Whole Numbers
   • 3.2 Exploring Addition on a Hundred Chart
   • 3.3 Addition Using Mental Math
   • 3.4 How to Round
   • 3.5 How to Estimate Sums
   • 3.6 Exploring Mixed Problem Solving
   • 3.7 Adding Three 2-Digit Numbers
4. 4 Addition of Whole Numbers Part II
   • 4.1 Adding Whole Numbers
   • 4.2 How to Add 3-Digit Numbers
   • 4.3 Exploring Addition of 3 or More Numbers
   • 4.4 Addition Pattern with Place Values
   • 4.5 Balance Addition Equations
   • 4.6 Drawing Pictures in Problem Solving
5. 5 Subtraction and Making Sense of Numbers
   • 5.1 Meaning of Subtraction
   • 5.2 Subtract Vertically or Horizontally
   • 5.3 How to Subtract Using a Hundred Chart
   • 5.4 Subtracting Using Mental Math
   • 5.5 How to Estimate Differences
   • 5.6 Write Subtraction Equations
   • 5.7 Compare Subtraction Equation
   • 5.8 Using Reasonableness in Problem Solving
6. 6 Solving Problems by Subtracting Whole Numbers
   • 6.1 Models to Subtract 2-Digit Numbers
   • 6.2 Two-Digit Number Subtractions
   • 6.3 Models to Subtract 3-Digit Numbers
   • 6.4 Three-Digits Number Subtractions
   • 6.5 Exploring Subtracting Across Zero
   • 6.6 Relation between Addition and Subtraction
   • 6.7 Write Subtraction Equations
   • 6.8 Pictures and Equations for Problem Solving
7. 7 Understanding Multiplication Facts and Meaning Part I
   • 7.1 Understanding the Concept of Multiplication as Repeated Addition
   • 7.2A Exploring Arrays and Multiplication
   • 7.2B Exploring Arrays and Multiplication
   • 7.3 Applying Multiplication When Comparison
   • 7.4 How to Write Multiplication Stories
   • 7.5 Explaining How to Solve a Problem
8. 8 Understanding Multiplication Facts and Meaning Part II
   • 8.1 Using 2 and 5 as factors
   • 8.2 Exploring 10 as a factor
   • 8.3 Working with 9 as a factor
   • 8.4 Multiplication with 0 and 1
   • 8.5 Using Two-Questions to Solve Problems
9. 9 Using Known Fact Strategies in Multiplication
   • 9.1A Using 3 and 4 as Factors
   • 9.1B Mix multiplication
   • 9.2A Using 6 and 7 as Factors
   • 9.2B Skipping by mix numbers
   • 9.3 Using 8 as a Factor
   • 9.4 Using 11 and 12 as Factors
   • 9.5 3-Factors Multiplication
   • 9.6 Multiplication with Numbers Ending at Zero
   • 9.7 Identifying Squares in Multiplication
   • 9.8 Write and Compare Multiplication Facts
10. 10 Understanding Meaning of Division
    • 10.1A Introducing Division as Sharing
    • 10.1B Introducing Division as Sharing
    • 10.2 How to Understand Remainders
    • 10.3 Introducing Division as Repeated Subtraction
    • 10.4 How to Write Division Stories
    • 10.5 Division by Finding Missing Number
    • 10.6 Using Objects and Drawing Pictures in Problem Solving
11. 11 Identifying Division Facts Part I
    • 11.1A Exploring Relationships in Multiplication and Division
    • 11.1B Exploring Relationships in Multiplication and Division
    • 11.2A Computing Fact Families of 2, 3, 4, and 5
    • 11.2B Computing Fact Families of 2, 3, 4, and 5
    • 11.3 Computing Fact Families of 6 and 7
    • 11.4 Computing Fact Families of 8 and 9
    • 11.5 Computing Fact Families of 8 and 9
12. 12 Identifying Division Facts Part II
    • 12.1 Dividing the Numbers Ending at 0
    • 12.2 Learning Division with 0 and with 1
    • 12.3 Input and Output Tables
    • 12.4 Identify the Larger and Smaller Quotients in Division Equations
    • 12.5 Drawing Pictures and Writing Number Sentences to Solve Problems
13. 13 Patterns and Relationships Exploration
    • 13.1 Exploring Repeating Patterns
    • 13.2 Exploring patterns of skipping numbers
    • 13.3 Using Extending Tables
    • 13.4 Writing Rules for Situation in Identifying Patterns
    • 13.5 Converting Word Expressions in Patterns
    • 13.6 Finding Geometric Patterns
    • 13.7 Equality or Inequality in Patterns
    • 13.8 Acting Out and Using Reasoning in Problem Solving
14. 14 Geometry: Solids and Shapes Part I
    • 14.1 Identify Solids and Shapes
    • 14.2 Relating Solids and Shapes in Geometry
    • 14.3 Recognize, Count, and Compare Sides, Faces, and Vertices
    • 14.4 Lines, Line Segments, and Rays
    • 14.5 Angles and Their Types
    • 14.6 Polygons
    • 14.7 Triangles and Their Types
    • 14.8 Quadrilaterals
15. 15 Geometry: Solids and Shapes Part II
    • 15.1 Circle: Identifying Center, the Radius, and the Diameter of Circle
    • 15.2 Flip and Slide Objects Horizontally and Vertically
    • 15.3 Turn/Rotation about 90° and 180°
    • 15.4 Making and Testing Generalizations in Problem Solving
    • 15.5 Using Motion and Congruent Figures
    • 15.6 Identifying Lines of Symmetry
    • 15.7 Drawing Shapes with Lines of Symmetry
16. 16 Fractions Part I
    • 16.1A Learning Fractions and Regions
    • 16.1B Learning Fractions and Regions
    • 16.2 Divide Regions into Parts
    • 16.3 Exploring Fractions and Sets
    • 16.4 Identifying Benchmark Fractions
    • 16.5 Evaluate Equivalent Fractions
    • 16.6 Compare Fractions Using Models
17. 17 Fractions Part II
    • 17.1 Order Fractions
    • 17.2 Compute Fraction Using Number Line
    • 17.3 Apply Models for Fraction Addition
    • 17.4 Apply Models for Fraction Subtraction
    • 17.5 Find the Missing Numerator and Denominator
    • 17.6 Reducing Fractions into Simplest Form
18. 18 Concepts of Decimals and Money Part I
    • 18.1 Learning about Fractions and Decimals
    • 18.2 Compare Decimal Numbers
    • 18.3 Order Numbers Involving Decimals
    • 18.4 Addition and Subtraction of Decimals
    • 18.5 Use of Money to Learn Decimals
19. 19 Concepts of Decimals and Money Part II
    • 19.1 Money: Addition and Subtraction
    • 19.2 Price List and Money Needed to Purchase
    • 19.3 Purchasing and Making Change
    • 19.4 Drawing Pictures and Writing Number Sentences to Solve Problems
    • 19.5 Using Missing or Extra Information in Problem Solving
20. 20 Measurement: Customary Units Part I
    • 20.1 Understanding Measurement
    • 20.2 Measure Length Using Fractions of an Inch
    • 20.3A Using Inches, Feet, Yards, and Miles
    • 20.3B Using Inches, Feet, Yards, and Miles
    • 20.4 Convert Customary Units of Length
    • 20.5 Units of Capacity
21. 21 Measurement: Customary Units Part II
    • 21.1 Convert Customary Units of Capacity
    • 21.2 Units of Weight
    • 21.3 Convert Customary Units of Weight
22. 22 Measurement: Metric Units
    • 22.1 Measure Length, Centimeters, and Decimeters
    • 22.2 Using Meters and Kilometers
    • 22.3 Convert Metric Units of Length
    • 22.4 Metric Units of Capacity
    • 22.5 Convert Metric Units of Capacity
    • 22.6 Measuring of Metric Units of Mass
    • 22.7 Convert Metric Units of Mass
    • 22.8 Choose Appropriate Units of Measurements
    • 22.9 Making Tables and Looking for Patterns in Problem Solving
23. 23 Measurement: Area, Perimeter, and Volume
    • 23.1 Perimeter A
    • 23.2 Perimeter B
    • 23.3 Area
    • 23.4 Estimating Area
    • 23.5 Volume
    • 23.6 Solving Simple Problems
24. 24 Measurement: Time and Temperature
    • 24.1 Reading Time in Half and Quarter Hours
    • 24.2 Reading Time in Minutes
    • 24.3 Understanding Unit of Time
    • 24.4 Computing Elapsed time
    • 24.5 Convert Times into Different Units
    • 24.6 Convert Hours to Day and Conversely
    • 24.7 Reading Time Schedule
    • 24.8 Temperature
    • 24.9 Read a Calendar
    • 24.10 Working Backwards in Problem Solving
25. 25 Multiplication: Larger Numbers
    • 25.1A Multiply by one to ten
    • 25.1B Multiplication problems up to 100
    • 25.2 Product Estimation
    • 25.3A Exploring Array and Multiplication
    • 25.3B Exploring Array and Multiplication
    • 25.4 Multiplication by Breaking Apart
    • 25.5 Exploring Expanded Algorithms
    • 25.6A Multiply 2-Digit Numbers and 3-Digit Numbers by 1-Digit Number
    • 25.6B Multiply 2-Digit Numbers and 3-Digit Numbers by 1-Digit Number
    • 25.7 Multiplication Patterns over Increasing Place Values
    • 25.8 Draw Pictures and Write Number Sentences to Solve Problems
26. 26 Division: Single-Digit Number
    • 26.1 Dividing Using Mental Math
    • 26.2 Estimate Quotients
    • 26.3 Exploration of Division and Connecting Models and Symbols
    • 26.4 2-Digit Number Division
    • 26.5 Division with remainders
    • 26.6 Rule of Divisibility for 2, 3, and 5
    • 26.7 Using Multi-Step Problems in Problem Solving
27. 27 Exploring Data, Graphs, and Probability
    • 27.1 How to Organize Data
    • 27.2 Exploring Mixed Problem Solving
    • 27.3 Reading and Drawing Pictographs
    • 27.4 Reading and Drawing Bar Graphs
    • 27.5A Reading and Creating Line Graphs
    • 27.5B Using Ordered Pairs and Line Graphs
    • 27.6 Certain, Likely, Unlikely, and Impossible
    • 27.7 Predicting Outcomes from Experiments
    • 27.8 Applying Line Plots and Experiments