game
Favourite
Factors and multiples game
A game in which players take it in turns to choose a number. Can you block your opponent?
Conjecturing and generalising
problem
Favourite
Sticky triangles
Age
7 to 11
Challenge level
Can you continue this pattern of triangles and begin to predict how many sticks are used for each new "layer"?
problem
Favourite
Enclosing squares
Age
11 to 14
Challenge level
Can you find sets of sloping lines that enclose a square?
problem
Favourite
Egyptian fractions
Age
11 to 14
Challenge level
The Egyptians expressed all fractions as the sum of different unit fractions. Here is a chance to explore how they could have written different fractions.
problem
Favourite
Shear magic
Age
11 to 14
Challenge level
Explore the area of families of parallelograms and triangles. Can you find rules to work out the areas?
problem
Favourite
Carrying cards
Age
7 to 11
Challenge level
These sixteen children are standing in four lines of four, one behind the other. They are each holding a card with a number on it. Can you work out the missing numbers?
problem
Favourite
Parallel lines
Age
11 to 14
Challenge level
How does the position of the line affect the equation of the line?
What can you say about the equations of parallel lines?
problem
Favourite
Magic vs
Age
7 to 11
Challenge level
Can you put the numbers 1-5 in the V shape so that both 'arms' have the same total?
problem
Favourite
Nice or nasty
Age
7 to 14
Challenge level
There are nasty versions of this dice game but we'll start with the nice ones...
problem
Favourite
A little light thinking
Age
14 to 16
Challenge level
Here is a machine with four coloured lights. Can you make two lights switch on at once? Three lights? All four lights?