NCERT Revision Notes for Class 3 Maths Chapter 2: Toy Joy – Free PDF Download

A quick summary of Class 3 Maths Chapter 2 — counting the faces, edges, and corners of common 3D shapes.

Last Updated: September 10, 2026

Class 3 Maths Chapter 2 Revision Notes: Toy Joy

Chapter type: Geometry — properties of 3D shapes (faces, edges, corners).

Key ideas to remember:

Face xe2x80x94 a flat surface of a 3D shape.

Edge xe2x80x94 a straight line where two faces of a shape meet.

Corner (vertex) xe2x80x94 a point where edges of a shape meet.

Cube properties xe2x80x94 6 faces, 12 edges, 8 corners.

Cuboid properties xe2x80x94 6 faces, 12 edges, 8 corners (like a cube, but faces are rectangles, not all squares).

What you should be able to do after this chapter:

1. Count the faces, edges, and corners of a cube or cuboid.
2. Explain why a sphere, cylinder, and cone have fewer (or no) flat faces, edges, and corners than a cube.
3. Sort toys or objects by their 3D shape.

Remember: A quick way to check: count faces first (flat surfaces), then edges (where two faces meet in a straight line), then corners (where edges meet at a point) — doing it in this order avoids missing any.

Frequently Asked Questions

Do all box-like shapes have the same number of faces, edges, and corners?
Cubes and cuboids both have 6 faces, 12 edges, and 8 corners — the shapes of the faces differ (squares vs. rectangles), but the counts are the same.

How does this chapter connect to the next one?
Double Century moves from shapes back to numbers, building 3-digit number sense, while Fun with Shapes later in the book returns to 2D shapes.

Written by Satish

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