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Parent guide · Grade 1 Math · Unit 9

Lesson 9.1 Facts to 20 Review

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 20–25 minutes
Goal
Review addition and subtraction facts to 20.
You need
  • Pencil and crayons
  • A King James Bible
Print
Worksheet A · Worksheet B · the lesson page (it also has a short video (4:03))

Steps

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

    • Ask: “9 + 8” Listen for: 17
    • Ask: “8 + 5” Listen for: 13
    • Ask: “1 + 1” Listen for: 2
    • Ask: “9 + 7” Listen for: 16
    • Ask: “2 + 6” Listen for: 8

  2. Say this: “Use doubles, make-ten and think-addition.”

    Say this: “Aim for answers in three seconds.”

  3. Show: 15 − 5 = ___

    Say this: “15 − 5 = 10”

    Say this: “Check: 10 + 5 = 15”

    Answer: 10

    Show: Find the missing number: ___ + 5 = 12

    Say this: “Think: what goes with 5 to make 12?”

    Say this: “12 − 5 = 7”

    Say this: “Check: 7 + 5 = 12”

    Answer: 7

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

    Ask: 6 + 7 = ___

    Listen for: 13

    If stuck: Make ten: 7 needs 3 more to make 10.

    Ask: 6 + 4 = ___

    Listen for: 10

    If stuck: 6 + 4 = 10

    Ask: 5 + 7 = ___

    Listen for: 12

    If stuck: Make ten: 7 needs 3 more to make 10.

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

    • Counting on fingers for facts you know.

  6. Sit in a circle (or go room to room). Answer a flashcard fact before the next player to move on. Go around the house!

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

    Listen for: Review addition and subtraction facts to 20.

  8. To every thing there is a season, and a time to every purpose under the heaven:

    Ecclesiastes 3:1 (KJV)

    Looking back over the year helps us give thanks.

  9. Mixed fact flashcards to 20, then count by tens from any number.

Spread over the week

5 sessions of 20–25 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.