Make a tetrahedron out of rolled paper sticks. Press it gently.
See that it does not change its shape – it is rigid.
Before you make each 3D shape, imagine it in your mind. Try to visualise how it will behave.
Do you think that it will be:
- Rigid, like the tetrahedron, so it will not change its shape at all?
- Collapsible, like the cube, so it will collapse into one or more flat shapes?
- Not rigid, but will not collapse into a flat shape.
Write down your predictions.
Sketch, and name or describe, the shapes that each of the 3D shapes can make.
Click here for the FLEXIBLE SHAPES Inclusion and Home Learning Guide.
Click here for the FLEXIBLE SHAPES worksheet.
Click here for the Notes for Teachers.