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

This shows a cube and a skeleton cube:

solid cube and cube made from balls of modelling clay and straws

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