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
- Worksheet A · Worksheet B · the lesson page (it also has a short video (2:16))
Steps
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
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.”
Show: Number bond: 5 is 4 and ___.
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?
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.
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 ___.
Listen for: 3
If stuck: 1 + ___ = 4
Ask: Number bond: 3 is 2 and ___.
Listen for: 1
If stuck: 2 + ___ = 3
Ask: Number bond: 4 is 3 and ___.
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.
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.
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.
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.
- Session 1. Warm-up, then teach the new idea (steps 1 and 2).
- Session 2. Warm-up again, then show how with the examples.
- Session 3. Practice together, then play the game.
- Session 4. More practice on the worksheet, and the daily habit.
- Session 5. Quick check: narration and a few practice items. Move on when it is mostly right.