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Learning by Doing

Objective: To understand the concept of nets of different 3D solid objects.
Materials Required: Different cardboard boxes or objects of different shapes, like toothpaste
box, gift box, a birthday cap, an empty pringles box, a ruler, a pencil, paper cutter and some
A-4 sheets.
Procedure:
• Take any one of the given cardboard boxes (let us take a
toothpaste box first) at a time.
• Open it from the edges carefully by using the paper cutter
under the guidance of your teacher or parents step by
step to see the formation.

• Get the net of this open box.

• How many rectangles are there in the net of the
toothpaste box?

• Repeat the same process for the rest of the given boxes to get their nets. Also, note down
the number of different faces in the table below.

Boxes or Objects Squared face Rectangular Triangular Circular
face face faces
1. Toothpaste box 2 4 – –

2. Rectangular pyramid gift
box
3. Birthday cap

4. Pringles box

279 Visualising Solid Shapes