Standards-Aligned Unit · 7 lessons

Understanding Fractions

A real first unit on fractions — not one quiz, a sequence. Starts with the one rule every fraction depends on (equal parts), builds up through naming, placing, comparing, and matching equivalent fractions, and ends with word problems and a mastery check, the same shape a classroom unit actually takes.

3.NF.A.13.NF.A.23.NF.A.3

3.NF.A.1 — Understand a fraction 1/b as the quantity formed by 1 part when a whole is partitioned into b equal parts; understand a fraction a/b as the quantity formed by a parts of size 1/b.

3.NF.A.2 — Understand a fraction as a number on the number line; represent fractions on a number line diagram.

3.NF.A.3 — Explain equivalence of fractions in special cases, and compare fractions by reasoning about their size.

7 lessons in this unit

  1. Lesson 1 · ~8 min · 3.NF.A.1

    🍕 Slicing It Fair

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  2. Lesson 2 · ~9 min · 3.NF.A.1

    🍕 Meet the Fraction Family

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  3. Lesson 3 · ~9 min · 3.NF.A.2, 3.NF.A.2.a, 3.NF.A.2.b

    🍕 Finding Your Place

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  4. Lesson 4 · ~8 min · 3.NF.A.3.d

    🍕 Which Is Bigger?

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  5. Lesson 5 · ~8 min · 3.NF.A.3.a, 3.NF.A.3.b, 3.NF.A.3.c

    🍕 Same Size, Different Name

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  6. Lesson 6 · ~9 min · 3.NF.A.1

    🍕 Fractions in the Real World

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  7. Lesson 7 · ~8 min · 3.NF.A.1, 3.NF.A.2, 3.NF.A.3

    🍕 Unit Checkpoint

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