Parent guide · Kindergarten Math · Unit 9

Lesson 9.3 Shapes and Measures

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: Review shapes, measuring and coins.
You need: A few real coins
Pencil and crayons
Print: Worksheet A · Worksheet B · the lesson page

Steps

Warm-up
Do this: Ask these out loud. Your child answers out loud; no paper needed.
- Ask: “1 + 4” Listen for: 5
- Ask: “4 + 4” Listen for: 8
- Ask: “5 + 1” Listen for: 6
- Ask: “0 + 5” Listen for: 5
- Ask: “4 + 5” Listen for: 9
Teach the new idea
Say this: “Shapes have sides and corners; solids take up space.”
Say this: “Count coins from the one worth the most.”
Show how
Show: Which is longer, A or B?
$two objects to compare$
Say this: “Both start at the same place. Compare the ends.”
Say this: “A is longer.”
Answer: A
Show: How much money is shown?
$coins$
Say this: “Start with the coin worth the most and count on: 5, 6, 7.”
Say this: “Total: 7¢”
Answer: 7¢
Practice together
Do this: Your child does these with you. Let them try first; help only after a real try.
Ask: Name this shape.
$triangle$
Listen for: triangle
If stuck: It has 3 straight sides and 3 corners.
Ask: Name this shape.
$rectangle$
Listen for: rectangle
If stuck: It has 4 straight sides and 4 corners.
Ask: Name this shape.
$square$
Listen for: square
If stuck: It has 4 straight sides and 4 corners.
10 more practice items on the lesson page, and on Worksheet A and Worksheet B.
Watch for
- Calling a turned square a diamond.
Game: Math Bingo
Make a 3 × 3 grid of numbers 0–10. Call out problems like “3 + 4” or “one less than 6.” Your child covers the answers. Three in a row wins.
Narration
Say this: “Tell me what you learned today. Show me with your hands or the counters if you like.”
Listen for: Review shapes, measuring and coins.
Daily habit
Mix all the counting chants: by ones to 100, by tens, by fives, and back from 20.

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.