Parent guide · Grade 2 Math · Unit 8
Lesson 8.1 Polygons and Solids
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
- Name polygons and solids.
- You need
- Blocks or cubes
- 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: “8 + 5” Listen for: 13
- Ask: “9 + 6” Listen for: 15
- Ask: “5 + 5” Listen for: 10
- Ask: “4 + 4” Listen for: 8
- Ask: “5 + 2” Listen for: 7
Say this: “Polygons are named by how many sides they have.”
Say this: “Solids have faces, edges and corners (vertices).”
Say this: “Polygon: a flat shape with straight sides.”
Say this: “Pentagon: 5 sides.”
Say this: “Hexagon: 6 sides.”
Say this: “Octagon: 8 sides.”
Show: How many sides does this shape have?
Say this: “Count the straight sides as you go around: 1, 2, 3, 4.”
Say this: “It is a rhombus with 4 sides.”
Answer: 4
Show: Name this solid shape.
Say this: “It has one flat circle and a point, like a funnel.”
Say this: “It is a cone.”
Answer: cone
Do this: Your child does these with you. Let them try first; help only after a real try.
Ask: Name this shape.
Listen for: octagon
If stuck: It has 8 straight sides and 8 corners.
Ask: Name this shape.
Listen for: pentagon
If stuck: It has 5 straight sides and 5 corners.
Ask: Name this shape.
Listen for: square
If stuck: It has 4 straight sides and 4 corners.
7 more practice items on the lesson page, and on Worksheet A and Worksheet B.
- Calling every four-sided shape a square.
Find arrays at home (egg cartons, window panes, muffin tins). Your child writes the repeated addition and the total for each.
Say this: “Tell me what you learned today. Show me with your hands or the counters if you like.”
Listen for: Name polygons and solids.
And this is the fashion which thou shalt make it of: The length of the ark shall be three hundred cubits, the breadth of it fifty cubits, and the height of it thirty cubits.
God gave Noah exact measurements for the ark. Shapes and sizes matter in building.
Skip count by 2s, 3s, 5s and 10s. Say: “3 rows of 4 make 12.”
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.