EQ:How are multiplication and division related

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Presentation transcript:

EQ:How are multiplication and division related EQ:How are multiplication and division related? How can the same array represent both multiplication and division? October 22, 2013

Standard MCC3.OA.5 Apply properties of operations to multiply and divide. MCC3.OA.6 Understand division as an unknown-factor problem

Number Talk

What is a fact family? Fact Families are sets of three numbers that can be added and subtracted or divided and multiplied together and they help develop the understanding of the relationship between addition and subtraction or multiplication and division.

Practice Write two addition and two subtraction equations for the numbers 5, 7, 12. Now try 9, 8, 17.

Practice Now I want you to try and write two multiplication and two division equations for the numbers 6, 7, 42. One more… 5, 45, 9

Work Time Complete Fact Family page Guided Math groups

Closing What is a fact family?