You may also like

problem icon


This activity investigates how you might make squares and pentominoes from Polydron.

problem icon


Make a cube out of straws and have a go at this practical challenge.

problem icon

Cereal Packets

How can you put five cereal packets together to make different shapes if you must put them face-to-face?

Reef and Granny

Stage: 2 Challenge Level: Challenge Level:1

To tie a reef knot you take an end of the string in each hand and do 'right over left, left over right'. A granny knot is 'right over left, right over left again'. You might like to look at the first part of this video.
If you want to make things secure with a knot, what do you think is important?
It might be a good idea to try tying two things together using each knot to test them for yourself.