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Model Commutative Property using Arrays

Videos to help Grade 3 students learn how to relate arrays to tape diagrams to model the commutative property of multiplication.

Common Core Standards: 3.OA.5, 3.OA.7, 3.OA.1, 3.OA.2, 3.OA.3, 3.OA.4, 3.OA.6

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Lesson Plans and Worksheets for Grade 3

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More Lessons for Grade 3

Common Core For Grade 3

New York State Common Core Math Module 1, Grade 3, Lesson 15

Lesson 15 Concept Development
Pictorial: Relate arrays with tape diagrams.
2 × 4 = 4 × 2

Pictorial - Abstract: Model commutativity using arrays and tape diagrams.

Lesson 15 Homework

1. Label the tape diagrams and complete the equations. Then draw an array to represent the problems.

b) 4 × _____ = _____

_____ × 4 = _____

2. 7 clowns hold 4 balloons each at the fair. Draw and label a tape diagram to show the total number of balloons the clowns hold.

3. George swims 7 laps in the pool each day. How many laps does George swim after 4 days? Draw and label a tape diagram to solve.

Rotate to landscape screen format on a mobile phone or small tablet to use the Mathway widget, a free math problem solver that answers your questions with step-by-step explanations.

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

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