Commutative Property of Multiplication Tool. The Commutative Property of Multiplication tool can be used to demonstrate that multiplication is commutative. You can use multiple models to show that the value of a x b = b x a. The tool allows the transition from the “groups of” phrase (e.g., “3 groups of 5 equals 5 groups of 3”) to using the equation, and numbers-only.

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Explore two lessons from our breakthrough fractions curriculum. Each lesson uses visual models to develop students' thinking as it progresses from concrete to abstract representations.
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