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Parent guide · Grade 3 Math · Unit 5

Lesson 5.3 Facts of 7 and 8

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
Know the 7s and 8s facts.
You need
  • Pencil and crayons
Print
Worksheet A · Worksheet B · the lesson page (it also has a short video (3:59))

Steps

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

    • Ask: “8 × 6” Listen for: 48
    • Ask: “8 × 4” Listen for: 32
    • Ask: “7 × 2” Listen for: 14
    • Ask: “8 × 5” Listen for: 40
    • Ask: “2 × 2” Listen for: 4

  2. Say this: “Most 7s and 8s facts are already known from other tables. Only 7 × 7 = 49, 7 × 8 = 56 and 8 × 8 = 64 are new.”

    Say this: “5, 6, 7, 8: 56 = 7 × 8.”

    Say this: “The last facts: 7 × 7, 7 × 8 and 8 × 8.”

  3. Show: 8 × 6 = ___

    Say this: “Break 8 into 3 and 5: 6 × 3 = 18”

    Say this: “6 × 5 = 30”

    Say this: “18 + 30 = 48”

    Answer: 48

    Show: 80 ÷ 8 = ___

    Say this: “Think multiplication: 8 × ___ = 80”

    Say this: “8 × 10 = 80”

    Answer: 10

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

    Ask: 6 × 8 = ___

    Listen for: 48

    If stuck: Break 8 into 3 and 5: 6 × 3 = 18

    Ask: 8 × 4 = ___

    Listen for: 32

    If stuck: Fours: double, then double again. 8 × 2 = 16

    Ask: 8 × 5 = ___

    Listen for: 40

    If stuck: Fives: half of tens. 8 × 10 = 80

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

    • Guessing at 7 × 8.

  6. Each player turns over two cards (1–10) and says the product. Higher product takes all four cards.

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

    Listen for: Know the 7s and 8s facts.

  8. Fact drill every day for one minute. Goal by the end of the unit: all × facts through 10 × 10 in 3 seconds.

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.