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Parent guide · Grade 3 Math · Unit 6

Lesson 6.2 Fractions on a Number Line

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
Place fractions on a number line.
You need
  • Pencil and crayons
Print
Worksheet A · Worksheet B · the lesson page (it also has a short video (12:46))

Steps

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

    • Ask: “4 × 9” Listen for: 36
    • Ask: “2 × 4” Listen for: 8
    • Ask: “5 × 3” Listen for: 15
    • Ask: “5 × 5” Listen for: 25
    • Ask: “4 × 5” Listen for: 20
  2. Say this: “Split the space from 0 to 1 into equal parts. Each jump is one unit fraction.”

    Say this: “Fractions can be greater than 1: 5/4 is past 1.”

    Say this: “Number line: a line with numbers in order at equal spaces.”

  3. Show: What fraction does the arrow point to?

    number line

    Say this: “Each whole is cut into 6 equal parts, so each step is \tfrac{1}{6} .”

    Say this: “The arrow is 5 steps from 0, so it points to \tfrac{5}{6} .”

    Answer: \tfrac{5}{6}

    Show: What fraction does the arrow point to?

    number line

    Say this: “Each whole is cut into 4 equal parts, so each step is \tfrac{1}{4} .”

    Say this: “The arrow is 2 steps from 0, so it points to \tfrac{2}{4} .”

    Answer: \tfrac{2}{4}

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

    Ask: What fraction does the arrow point to?

    number line

    Listen for: \tfrac{1}{2}

    If stuck: Each whole is cut into 2 equal parts, so each step is \tfrac{1}{2} .

    Ask: What fraction does the arrow point to?

    number line

    Listen for: \tfrac{2}{3}

    If stuck: Each whole is cut into 3 equal parts, so each step is \tfrac{1}{3} .

    Ask: What fraction does the arrow point to?

    number line

    Listen for: \tfrac{2}{4}

    If stuck: Each whole is cut into 4 equal parts, so each step is \tfrac{1}{4} .

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

    • Counting the tick marks instead of the spaces.
  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: Place fractions on a number line.

  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.