Math · Stage 1

Solid shape explorers: faces, edges, corners and curves

Explore solid shapes by counting their faces, edges and corners, telling flat from curved surfaces, and naming the flat shapes on the faces.

✦ Math📘 Stage 1 · S1⏱ ~9 min🧒 Ages 5–6★ Free to start

explore solid shapes by counting their faces, edges and corners, telling flat from curved surfaces, and naming the flat shapes on the faces

Start the free lesson →⬇ Printable PDF

📖

The tin that rolls and stands

Ayu helps at the market stall. She has a milk tin, a tissue box and a coconut. The coconut rolls away. The tin rolls too, but it also stands still on its end. The box never rolls. Ayu asks, why can the tin both roll and stand still? By the end I can tell flat from curved, count faces, edges and corners, and name the flat shapes on a solid.

🎓

What your child will learn

1Warm up: flat shapes and solids

2Words: edge and corner

3Predict: roll or slide

4Sort the surfaces of four solids

5Count faces by marking them

6Count edges and corners

7Sort solids with a rule

8Stamp the faces of solids

9Describe a cone and a sphere

10Misconception clinic: fix four wrong ideas

11Check your thinking at the market stall

12Build with cubes and take apart

13Hands-on: household solids hunt

14Can-do check and talk it

🔍

A peek inside

How many faces does a cube have? Turn it, mark each face, count the hidden ones too.

I put a sticker on the top face: 1.<br>I turn it and mark front 2, back 3, left 4, right 5.<br>The bottom is hidden, so I mark it last: 6.<br>No face has two stickers, so a cube has 6 faces.

Try this at home: How many faces does a cube have? Turn it, mark each face, count the hidden ones too.

Ready to play and learn?

Start the free interactive lesson, or print the handout for screen-free play.

Start the free lesson →⬇ Download PDF

Part of Math · Stage 1 · S1 on KAVI Academy — a secular, whole-child learning platform for ages 5–12.