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Parent guide · Grade 3 Math · Unit 9

Lesson 9.1 Facts of 11 and 12

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
Learn the 11s and 12s to 12 × 12. Review all × and ÷ facts.
You need
  • Pencil and crayons
  • A King James Bible
Print
Worksheet A · Worksheet B · the lesson page (it also has a short video (4:11))

Steps

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

    • Ask: “3 × 11” Listen for: 33
    • Ask: “10 × 10” Listen for: 100
    • Ask: “7 × 10” Listen for: 70
    • Ask: “11 × 12” Listen for: 132
    • Ask: “2 × 8” Listen for: 16

  2. Say this: “11 × a one-digit number repeats the digit: 11 × 4 = 44. 11 × 11 = 121, 11 × 12 = 132.”

    Say this: “12 × a number = 10 × the number + 2 × the number: 12 × 7 = 70 + 14 = 84.”

    Say this: “Dozen: 12 of something.”

  3. Show: 55 ÷ 11 = ___

    Say this: “Think multiplication: 11 × ___ = 55”

    Say this: “11 × 5 = 55”

    Answer: 5

    Show: Find the missing number: ___ ÷ 6 = 11

    Say this: “Think multiplication: 6 × 11 = 66”

    Say this: “Check: 66 ÷ 6 = 11”

    Answer: 66

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

    Ask: 11 × 6 = ___

    Listen for: 66

    If stuck: Break 11 into 10 and 1: 6 × 10 = 60

    Ask: 11 × 2 = ___

    Listen for: 22

    If stuck: Twos are doubles: 11 + 11 = 22

    Ask: 11 × 3 = ___

    Listen for: 33

    If stuck: 11 × 3 = 33

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

    • Forgetting the 2 × part when splitting 12.

  6. Fill a grid with products. Call out facts such as “7 × 8”. Cover the products. Four in a row wins.

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

    Listen for: Learn the 11s and 12s to 12 × 12.; Review all × and ÷ facts.

  8. And whatsoever ye do, do it heartily, as to the Lord, and not unto men;

    Colossians 3:23 (KJV)

    We finish the year by working heartily, for the Lord.

  9. Fact drill daily. Goal: all × and ÷ facts to 12 × 12 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.