problem
Favourite
Four triangles puzzle
Age
5 to 11
Challenge level
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?
problem
Favourite
Totality
Age
5 to 11
Challenge level
This is an adding game for two players. Can you be the first to reach the target?
problem
Favourite
Sizing them up
Age
5 to 7
Challenge level
Can you put these shapes in order of size? Start with the smallest.
problem
Favourite
Sort the street
Age
5 to 7
Challenge level
Sort the houses in my street into different groups. Can you do it in any other ways?
problem
Favourite
Inside triangles
Age
5 to 7
Challenge level
How many different triangles can you draw on the dotty grid which each have one dot in the middle?
problem
Favourite
Poly plug rectangles
Age
5 to 11
Challenge level
The computer has made a rectangle and will tell you the number of spots it uses in total. Can you find out where the rectangle is?
problem
Favourite
How many?
Age
5 to 11
Challenge level
Have a look at these photos of different fruit. How many do you see? How did you count?
problem
Favourite
Noah
Age
5 to 7
Challenge level
Noah saw 12 legs walk by into the Ark. How many creatures did he see?
problem
Favourite
Nine-pin triangles
Age
7 to 11
Challenge level
How many different triangles can you make on a circular pegboard that has nine pegs?
problem
Tiling
Age
7 to 11
Challenge level
An investigation that gives you the opportunity to make and justify predictions.
problem
Magic crosses
Age
7 to 14
Challenge level
Can you find examples of magic crosses? Can you find all the possibilities?
problem
Neighbourly addition
Age
7 to 14
Challenge level
I added together some of my neighbours' house numbers. Can you explain the patterns I noticed?
problem
Favourite
Reach 100
Age
7 to 11
Challenge level
Choose four different digits from 1-9 and put one in each box so that the resulting four two-digit numbers add to a total of 100.
