K - 2

What Is a Number?

Decomposing Numbers

Missing Term Subtraction

3 - 4

Multiplication with Arrays

Equal Shares Division

Factors of 16

Customary Liquid Measures

5 - 6

Commutative Property for Multiplying Fractions

Understanding Fraction Division

Modeling Decimals with a Decimal Grid

Discovering the Formula for Area

7 - 8

Representing Data

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Solving Two-Step Equations