Skip over navigation
How big is the base/bottom of this box?
How high are the sides?
So how much does it hold?
It might be useful to print out this $15 \times15$ square.
Making Boxes
Age 7 to 11
Challenge Level 
How big is the base/bottom of this box?
How high are the sides?
So how much does it hold?
It might be useful to print out this $15 \times15$ square.
You may also like
Geoboards
This practical challenge invites you to investigate the different squares you can make on a square geoboard or pegboard.
Tiles on a Patio
How many ways can you find of tiling the square patio, using square tiles of different sizes?
Pebbles
Place four pebbles on the sand in the form of a square. Keep adding as few pebbles as necessary to double the area. How many extra pebbles are added each time?