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Parent guide · Kindergarten Math · Unit 1

Lesson 1.4 Number Bonds to 5

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 15–20 minutes
Goal
Split 5 into two parts. Find the missing part.
You need
  • Counters (dried beans, buttons or pebbles)
  • Craft sticks and rubber bands
  • Pencil and crayons
Print
Worksheet A · Worksheet B · the lesson page (it also has a short video (2:16))

Steps

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

    • Ask: “What number comes just after 3?” Listen for: 4
    • Ask: “What number comes just after 2?” Listen for: 3
    • Ask: “What number comes just after 4?” Listen for: 5
    • Ask: “What number comes just after 1?” Listen for: 2
    • Ask: “What number comes just after 5?” Listen for: 6
  2. Say this: “Five can be made in different ways: 5 and 0, 4 and 1, 3 and 2.”

    Say this: “If we know the whole and one part, we can find the other part.”

    Say this: “Number bond: a picture that shows a whole and its two parts.”

    Say this: “Part: one piece of a whole.”

  3. Show: Number bond: 5 is 4 and ___.

    bar model

    Say this: “4 + ___ = 5”

    Say this: “4 + 1 = 5”

    Answer: 1

    Show: Ruth gleaned 2 bundles of barley one day and 3 the next. How many bundles did she glean?

    bar model

    Say this: “Unknown: the total.”

    Say this: “Bar model: two parts, 2 and 3; the whole is unknown.”

    Say this: “Equation: 2 + 3 = ?”

    Say this: “2 + 3 = 5”

    Say this: “Answer: Ruth gleaned 5 bundles.”

    Answer: 5 bundles. Ruth gleaned 5 bundles.

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

    Ask: Number bond: 4 is 1 and ___.

    bar model

    Listen for: 3

    If stuck: 1 + ___ = 4

    Ask: Number bond: 3 is 2 and ___.

    bar model

    Listen for: 1

    If stuck: 2 + ___ = 3

    Ask: Number bond: 4 is 3 and ___.

    bar model

    Listen for: 1

    If stuck: 3 + ___ = 4

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

    • Forgetting 5 and 0. Zero is a part too.
  5. Put out 1 to 5 dried beans. Your child closes their eyes while you take some away, then says how many are left and how many you took. Swap roles.

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

    Listen for: Split 5 into two parts.; Find the missing part.

  7. Count aloud from 1 to 10 and back from 10 to 1 every day, touching your fingers as you go.

Spread over the week

5 sessions of 15–20 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.