List

I Wonder ...?

What was in the Box?
problem
Favourite

What was in the Box?

Age
5 to 7
Challenge level
filled star empty star empty star
This big box adds something to any number that goes into it. If you know the numbers that come out, what addition might be going on in the box?
Break it up!
problem
Favourite

Break it up!

Age
5 to 11
Challenge level
filled star empty star empty star

In how many different ways can you break up a stick of seven interlocking cubes? Now try with a stick of eight cubes and a stick of six cubes. What do you notice?

Holes
problem
Favourite

Holes

Age
5 to 11
Challenge level
filled star empty star empty star

I've made some cubes and some cubes with holes in. This challenge invites you to explore the difference in the number of small cubes I've used. Can you see any patterns?

Four Triangles Puzzle
problem
Favourite

Four Triangles Puzzle

Age
5 to 11
Challenge level
filled star empty star empty star
Cut four triangles from a square as shown in the picture. How many different shapes can you make by fitting the four triangles back together?
Puzzling with Paper
list

Puzzling with Paper

Age
5 to 7
This feature challenges you to create different shapes by folding A-sized paper. Grab some paper and get folding!