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Open Up Resources K–5 Math
Grade 3
Kindergarten
Grade 1
Grade 2
Grade 3
Grade 4
Grade 5
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Contents
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Unit 1
Unit 2
Unit 3
Unit 4
Unit 5
Unit 6
Unit 7
Unit 8
Grade 3
Google Slides
Unit 1: Introduction to Multiplication
Community Created Resources
Lesson 1
: Make Sense of Data
Lesson 2
: Represent Data and Solve Problems
Lesson 3
: Scaled Picture Graphs
Lesson 4
: Create Scaled Picture Graphs
Lesson 5
: Represent Data in Scaled Bar Graphs
Lesson 6
: Choose a Scale
Lesson 7
: Answer Questions about Scaled Bar Graphs
Lesson 8
: More Questions about Scaled Bar Graphs
Lesson 9
: Multiplication as Equal Groups
Lesson 10
: Drawings, Situations, and Diagrams, Oh My!
Lesson 11
: Multiplication Expressions
Lesson 12
: Represent and Solve Multiplication Problems
Lesson 13
: Multiplication Equations
Lesson 14
: Write and Solve Equations with Unknowns
Lesson 15
: More Factors, More Problems
Lesson 16
: Arrange Objects Into Arrays
Lesson 17
: Match and Draw Arrays
Lesson 18
: Represent Arrays with Expressions
Lesson 19
: Solve Problems Involving Arrays
Lesson 20
: The Commutative Property
Lesson 21
: Game Night Seating Plan
Unit 2: Area and Multiplication
Community Created Resources
Lesson 1
: What is Area?
Lesson 2
: How Do We Measure Area?
Lesson 3
: Tile Rectangles
Lesson 4
: Area of Rectangles
Lesson 5
: Represent Products as Areas
Lesson 6
: Different Square Units (Part 1)
Lesson 7
: Different Square Units (Part 2)
Lesson 8
: Area of Rectangles Without a Grid
Lesson 9
: Measure to Find the Area
Lesson 10
: Solve Area Problems
Lesson 11
: Area and the Multiplication Table
Lesson 12
: Area and Addition
Lesson 13
: Find the Area of Figures
Lesson 14
: Find the Area of Figures with Missing Sides
Lesson 15
: New Room
Unit 3: Wrapping Up Addition and Subtraction Within 1,000
Community Created Resources
Lesson 1
: Represent Numbers in Different Ways
Lesson 2
: Addition and Subtraction Situations
Lesson 3
: Add Your Way
Lesson 4
: Introduction to Addition Algorithms
Lesson 5
: Another Addition Algorithm
Lesson 6
: Use Strategies and Algorithms to Add
Lesson 7
: Subtract Your Way
Lesson 8
: Subtraction Algorithms (Part 1)
Lesson 9
: Subtraction Algorithms (Part 2)
Lesson 10
: Subtraction Algorithms (Part 3)
Lesson 11
: Analyze Subtraction Algorithms
Lesson 12
: Subtract Strategically
Lesson 13
: Multiples of 100
Lesson 14
: Nearest Multiples of 10 and 100
Lesson 15
: Round to the Nearest Ten and Hundred
Lesson 16
: Round and Round Again
Lesson 17
: Does It Make Sense?
Lesson 18
: Diagrams and Equations for Word Problems
Lesson 19
: Situations and Equations
Lesson 20
: More Practice to Represent and Solve
Lesson 21
: Classroom Supplies
Unit 4: Relating Multiplication to Division
Community Created Resources
Lesson 1
: How Many Groups?
Lesson 2
: How Many in Each Group?
Lesson 3
: Division Situation Drawings
Lesson 4
: Interpret Division Expressions
Lesson 5
: Write Division Expressions
Lesson 6
: Division as an Unknown Factor
Lesson 7
: Relate Multiplication and Division
Lesson 8
: Relate Quotients to Familiar Products
Lesson 9
: Patterns in the Multiplication Table
Lesson 10
: Explore Multiplication Strategies with Rectangles
Lesson 11
: Multiplication Strategies on Ungridded Rectangles
Lesson 12
: Multiply Multiples of Ten
Lesson 13
: Solve Problems With Equal Groups
Lesson 14
: Ways to Represent Multiplication of Teen Numbers
Lesson 15
: Equal Groups, Larger Numbers
Lesson 16
: Multiply Numbers Larger than 20
Lesson 17
: Use the Four Operations to Solve Problems
Lesson 18
: Larger Numbers in Equal Groups
Lesson 19
: Ways to Divide Larger Numbers
Lesson 20
: Strategies for Dividing
Lesson 21
: Solve Problems Using the Four Operations
Lesson 22
: School Community Garden
Unit 5: Fractions as Numbers
Community Created Resources
Lesson 1
: Name the Parts
Lesson 2
: Name Parts as Fractions
Lesson 3
: Non-unit Fractions
Lesson 4
: Build Fractions from Unit Fractions
Lesson 5
: To the Number Line
Lesson 6
: Locate Unit Fractions on the Number Line
Lesson 7
: Non-unit Fractions on the Number Line
Lesson 8
: Fractions and Whole Numbers
Lesson 9
: All Kinds of Numbers on the Number Line
Lesson 10
: Equivalent Fractions
Lesson 11
: Generate Equivalent Fractions
Lesson 12
: Equivalent Fractions on a Number Line
Lesson 13
: Whole Numbers and Fractions
Lesson 14
: How Do You Compare Fractions?
Lesson 15
: Compare Fractions with the Same Denominator
Lesson 16
: Compare Fractions with the Same Numerator
Lesson 17
: Compare Fractions
Lesson 18
: Design With Fractions
Unit 6: Measuring Length, Time, Liquid Volume, and Weight
Community Created Resources
Lesson 1
: Measure in Halves of an Inch
Lesson 2
: Measure in Fourths of an Inch
Lesson 3
: Measure in Halves and Fourths of an Inch
Lesson 4
: Interpret Measurement Data on Line Plots
Lesson 5
: Represent Measurement Data on Line Plots
Lesson 6
: Estimate and Measure Weight
Lesson 7
: Introduction to Liquid Volume
Lesson 8
: Estimate and Measure Liquid Volume
Lesson 9
: Time to the Nearest Minute
Lesson 10
: Solve Problems Involving Time (Part 1)
Lesson 11
: Solve Problems Involving Time (Part 2)
Lesson 12
: Ways to Represent Measurement Situations
Lesson 13
: Problems with Missing Information
Lesson 14
: What Makes Sense in the Problem?
Lesson 15
: Ways to Solve Problems and Show Solutions
Lesson 16
: Design a Carnival Game
Unit 7: Two-Dimensional Shapes and Perimeter
Community Created Resources
Lesson 1
: What Attributes Do You See?
Lesson 2
: Attributes of Triangles and Quadrilaterals
Lesson 3
: Attributes that Define Shapes
Lesson 4
: Attributes of Rectangles, Rhombuses, and Squares
Lesson 5
: Attributes of Other Quadrilaterals
Lesson 6
: Distance Around Shapes
Lesson 7
: Same Perimeter, Different Shapes
Lesson 8
: Find the Perimeter
Lesson 9
: Perimeter Problems
Lesson 10
: Problem Solving With Perimeter and Area
Lesson 11
: Rectangles with the Same Perimeter
Lesson 12
: Rectangles with the Same Area
Lesson 13
: Shapes and Play
Lesson 14
: Wax Prints
Lesson 15
: Design Your Own Robot
Unit 8: Putting It All Together
Community Created Resources
Lesson 1
: Estimation Explorations with Fractions
Lesson 2
: Create Your Own Number Line
Lesson 3
: Fractions Round Table
Lesson 4
: Tiny House: Design and Solve
Lesson 5
: Tiny House: Cost
Lesson 6
: Survey the Class, Survey the School
Lesson 7
: Graph and Answer
Lesson 8
: Multiplication Center Day
Lesson 9
: Multiplication Game Day
Lesson 10
: Multiplication and Division
Lesson 11
: Division Game Day
Lesson 12
: Notice and Wonder
Lesson 13
: How Many Do You See?
Lesson 14
: Estimation Exploration
Lesson 15
: Number Talk