2D shapes and their properties

If these balls are put on a line with each ball touching the one in front and the one behind, which arrangement makes the shortest line of balls?

In this game, you turn over two cards and try to draw a triangle which has both properties.

Can you match the Venn diagram with the Carroll diagram that shows the same information?

Do you agree with Badger's statements? Is Badger's reasoning watertight? Why or why not?

For this task, you'll need an A4 sheet and two A5 transparent sheets. Decide on a way of arranging the A5 sheets on top of the A4 sheet and explore ...

What shape is made when you fold using this crease pattern? Can you make a ring design?

Use the interactivity to make this Islamic star and cross design. Can you produce a tessellation of regular octagons with two different types of triangle?

Are all the possible combinations of two shapes included in this set of 27 cards? How do you know?

'What Shape?' activity for adult and child. Can you ask good questions so you can work out which shape your partner has chosen?