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THIRD GRADE

Unit 1: Working With Data and Solving Comparison Problems

Unit Videos

  • Sub-Unit 1 – Representing Equal-Groups Situations With Equal-Groups Drawings

  • Sub-Unit 2 – Representing Arrays With Multiplication Equations

  • Sub-Unit 3 – Representing Data Using Scaled Bar Graphs

 

Unit 2: Adding and Subtracting Within 100

Unit Videos

  • Sub-Unit 1 – Determining the Area of a Rectangle Using Counting and Skip Counting

  • Sub-Unit 2 – Determining the Area of a Rectangle Using Multiplication

  • Sub-Unit 3 – Decomposing to Determine the Area of Rectilinear Figures

 

Unit 3: Measuring Length

Unit Videos

  • Sub-Unit 1 – Using the Expanded Form and Partial Sums Algorithms to Add

  • Sub-Unit 2 – Using the Expanded Form Algorithm to Subtract

  • Sub-Unit 3 – Rounding Numbers to the Nearest Hundred and Ten Using Number Lines

  • Sub-Unit 4 – Representing and Solving Two-Step Story Problems Involving Multiplication

 

Unit 4: Addition and Subtraction on the Number Line

Unit Videos

  • Sub-Unit 1 – Representing Division Situations With Equal-Groups Drawings

  • Sub-Unit 2 – Representing an Equal-Groups Problem With a Division and Multiplication Equation

  • Sub-Unit 3 – Using the Distributive Property of Multiplication to Multiply a One-Digit Number by a Teen Number

  • Sub-Unit 4 – Decomposing Dividends to Divide

 

Unit 5: Numbers to 1,000

Unit Videos

  • Sub-Unit 1 – Writing Unit and Non-Unit Fractions

  • Sub-Unit 2 – Locating Non-Unit Fractions on the Number Line

  • Sub-Unit 3 – Identifying Equivalent Fractions

  • Sub-Unit 4 – Comparing Fractions With the Same Denominator or Same Numerator

 

Unit 6: Geometry and Time

Unit Videos

  • Sub-Unit 1 – Measuring the Length of an Object in Halves and Quarters of an Inch

  • Sub-Unit 2 – Measuring Liquid Volume

  • Sub-Unit 3 – Solving Time Problems

  • Sub-Unit 4 – Representing and Solving Problems Involving Weight

 

Unit 7: Adding and Subtracting Within 1,000

Unit Videos

  • Sub-Unit 1 – Identifying Rectangles, Squares, and Rhombuses

  • Sub-Unit 2 – Determining the Perimeter of a Polygon

  • Sub-Unit 3 – Solving Real-World Problems Involving Perimeter and Area of Rectangles

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