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Shadow Play

Here are shadows of some 3D shapes. What shapes could have made them?

Skeleton Shapes

Stage: 1 Challenge Level: Challenge Level:2 Challenge Level:2

Skeleton shapes are made with balls of modelling clay and straws.

This shows a cube and a skeleton cube:

How many balls of modelling clay and how many straws does it take to make the cube?

Here are some piles of modelling clay balls and straws:

piles of balls and straws: 6 straws with 4 balls, 9 straws with 6 balls, 8 straws with 5 balls, 12 straws with 8 balls, 18 straws with 12 balls

Look at the shapes below and decide which piles are needed to make a skeleton of each shape.

solid triangular prism, tetrahedron, cuboid, square pyramid and hexagonal prism