Parent guide · Grade 2 Math · Unit 1
Lesson 1.1 Addition Strategy 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
- Use doubles and make-ten to add quickly.
- You need
- Pencil and crayons
- A King James Bible
- Worksheet A · Worksheet B · the lesson page
Steps
Do this: Ask these out loud. Your child answers out loud; no paper needed.
- Ask: “4 + 6” Listen for: 10
- Ask: “9 + 9” Listen for: 18
- Ask: “9 + 5” Listen for: 14
- Ask: “4 + 2” Listen for: 6
- Ask: “2 + 5” Listen for: 7
Say this: “Doubles, near doubles and making ten turn hard facts into easy ones.”
Say this: “The goal this unit is to know the facts, not to count them.”
Say this: “Fact: a basic addition or subtraction you know by heart.”
Show: 7 + 5 = ___
Say this: “Make ten: 7 needs 3 more to make 10.”
Say this: “Split 5 into 3 and 2.”
Say this: “7 + 3 = 10”
Say this: “10 + 2 = 12”
Answer: 12
Show: 9 + 4 + 5 = ___
Say this: “9 + 4 = 13”
Say this: “13 + 5 = 18”
Answer: 18
Do this: Your child does these with you. Let them try first; help only after a real try.
Ask: 2 + 3 = ___
Listen for: 5
If stuck: Use a double: 2 + 2 = 4
Ask: 9 + 7 = ___
Listen for: 16
If stuck: Make ten: 9 needs 1 more to make 10.
Ask: 8 + 3 = ___
Listen for: 11
If stuck: Make ten: 8 needs 2 more to make 10.
7 more practice items on the lesson page, and on Worksheet A and Worksheet B.
- Counting on fingers for a fact like 8 + 7. Use 7 + 7 + 1.
Fill a 4 × 4 grid with numbers 2–18. Call out facts like “8 + 7” or “15 − 9.” Cover the answer. Four in a row wins.
Say this: “Tell me what you learned today. Show me with your hands or the counters if you like.”
Listen for: Use doubles and make-ten to add quickly.
So teach us to number our days, that we may apply our hearts unto wisdom.
Learning to number well is a small part of learning to live wisely.
One-minute fact drill on Fridays (aim for 30 correct). Count by twos to 50 and back.
Spread over the week
5 sessions of 20–25 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.