Exploring Fact Families in Multiplication and Division

This video tutorial explains the concept of fact families, which involve using three numbers to create four equations. The tutorial demonstrates how to form fact families using both multiplication and division, using the numbers 5, 3, and 15 as examples. It highlights the interrelation between multiplication and division and encourages using these strategies to understand the connections between these operations.

What is a fact family?

• A mathematical term for a family of factors

• A group of facts related to history

• A set of four equations using exactly three numbers

• A collection of unrelated numbers

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CCSS.4.NBT.B.6

How many equations can you create with a fact family using addition and subtraction?

• Six

• Four

• Two

• Three

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CCSS.1.OA.A.1

Which three numbers are used in the video's fact family?

• 7, 2, 14

• 5, 3, 15

• 2, 4, 8

• 6, 3, 18

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CCSS.4.NBT.B.6

What is the result of 5 times 3?

• 8

• 15

• 10

• 18

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CCSS.3.OA.C.7

What property of multiplication is demonstrated by switching the numbers in the equation?

• Identity Property

• Distributive Property

• Associative Property

• Commutative Property

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CCSS.5.NBT.B.7

What is the starting number for division in a fact family?

• Any number

• The smallest number

• The largest number

• The middle number

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CCSS.4.NBT.B.6

What does 15 divided by 3 equal?

• 5

• 3

• 45

• 6

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CCSS.3.OA.B.6

How can you create a different division equation using the same three numbers?

• Use a different mathematical operation

• Switch the divisor and dividend

• Change the order of operations

• Add another number

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CCSS.3.OA.C.7

What strategy can be used to solve 15 divided by 5?

• Subtraction

• Guessing

• Looking at the unused number

• Addition

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CCSS.4.NBT.B.6

Why are multiplication and division considered interrelated in fact families?

• They both use the same numbers

• They require different numbers

• They are both difficult to learn

• They cannot be used interchangeably

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CCSS.4.NBT.B.6