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Parent guide · Grade 3 Math · Unit 6

Lesson 6.4 Comparing Fractions

Written for the parent. Read the Say this lines aloud as they are, or in your own words. Answers for you are marked Listen for.

At a glance

Time
5 sessions of 25–30 minutes
Goal
Compare fractions with the same denominator or the same numerator.
You need
  • Pencil and crayons
Print
Worksheet A · Worksheet B · the lesson page (it also has a short video (6:31))

Steps

  1. Do this: Ask these out loud. Your child answers out loud; no paper needed.

    • Ask: “7 × 5” Listen for: 35
    • Ask: “3 × 6” Listen for: 18
    • Ask: “2 × 6” Listen for: 12
    • Ask: “3 × 10” Listen for: 30
    • Ask: “2 × 10” Listen for: 20
  2. Say this: “Same denominator: compare the numerators. 5/8 > 3/8.”

    Say this: “Same numerator: the smaller denominator is bigger. ⅓ > ⅕.”

    Say this: “Compare: decide which is greater.”

  3. Show: Write < or > : \tfrac{1}{2} ___ \tfrac{1}{4}

    Say this: “Both have 1 part. Fewer cuts make bigger parts, so the smaller denominator wins.”

    Say this: “\tfrac{1}{2} > \tfrac{1}{4}”

    Answer: \tfrac{1}{2} > \tfrac{1}{4}

    Show: Write < or > : \tfrac{1}{6} ___ \tfrac{1}{3}

    Say this: “Both have 1 part. Fewer cuts make bigger parts, so the smaller denominator wins.”

    Say this: “\tfrac{1}{6} < \tfrac{1}{3}”

    Answer: \tfrac{1}{6} < \tfrac{1}{3}

  4. Do this: Your child does these with you. Let them try first; help only after a real try.

    Ask: Write < or > : \tfrac{5}{8} ___ \tfrac{7}{8}

    Listen for: \tfrac{5}{8} < \tfrac{7}{8}

    If stuck: The parts are the same size, so compare the numerators: 5 and 7.

    Ask: Write < or > : \tfrac{3}{4} ___ \tfrac{1}{4}

    Listen for: \tfrac{3}{4} > \tfrac{1}{4}

    If stuck: The parts are the same size, so compare the numerators: 3 and 1.

    Ask: Write < or > : \tfrac{1}{6} ___ \tfrac{5}{6}

    Listen for: \tfrac{1}{6} < \tfrac{5}{6}

    If stuck: The parts are the same size, so compare the numerators: 1 and 5.

    7 more practice items on the lesson page, and on Worksheet A and Worksheet B.

    • Thinking ⅕ is bigger than ⅓ because 5 is bigger.
  5. Each player rolls a die (1–6) and takes that many sixths, or halves of that number in thirds. First to build one whole exactly wins.

  6. Say this: “Tell me what you learned today. Show me with your hands or the counters if you like.”

    Listen for: Compare fractions with the same denominator or the same numerator.

  7. Fact drill (× and ÷) twice a week. Count by halves and fourths on the number line.

Spread over the week

5 sessions of 25–30 minutes. Stop while it is still going well.

  1. Session 1. Warm-up, then teach the new idea (steps 1 and 2).
  2. Session 2. Warm-up again, then show how with the examples.
  3. Session 3. Practice together, then play the game.
  4. Session 4. More practice on the worksheet, and the daily habit.
  5. Session 5. Quick check: narration and a few practice items. Move on when it is mostly right.