fraction strips, drawn pictorial area models on paper). They identify and count equal parts as 1 half, 1 fourth, 1 third, 1 sixth, and 1 eighth in unit form before an introduction to the unit fraction (3.NF.A.1). In Topic B, students compare unit fractions and learn to build non‐unit fractions with unit fractions as basic building blocks (3.NF.A.3d). This parallels the understanding that the number 1 is the basic building block of whole numbers. In Topic C, students practice comparing unit fractions…
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