Illuminations: Finding Fact Families

In this lesson, students explore the relation of addition to subtraction with books and links.

Then the children search for related addition and subtraction facts for a given number. They also investigate fact families, including those where one addend is 0 and where the addends are alike.

 

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Addition & Subtraction
K-6, Educator

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Illuminations (National Council of Teachers of Mathematics)

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