Illuminations: Comparing Sets

A children’s book sets the stage for this lesson which encourages students to review counting back.

In this lesson, children write subtraction problems and model them with cubes. They compare sets and record differences in the form of a table. The additive identity is reviewed in the context of comparing equal sets.


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Math Topics
Addition & Subtraction, Number Values & Counting
K-6, Educator

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Illuminations (National Council of Teachers of Mathematics)

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