game
Favourite
Vector gem collector
Use vectors to collect as many gems as you can and bring them safely home!
Positive and negative numbers
game
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Up, down, flying around
Play this game to learn about adding and subtracting positive and negative numbers
problem
Favourite
Strange bank account
Age
11 to 14
Challenge level
Imagine a very strange bank account where you are only allowed to do two things...
problem
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Consecutive numbers
Age
7 to 14
Challenge level
An investigation involving adding and subtracting sets of consecutive numbers. Lots to find out, lots to explore.
problem
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Swimming pool
Age
5 to 11
Challenge level
In this problem, we're investigating the number of steps we would climb up or down to get out of or into the swimming pool. How could you number the steps below the water?
problem
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Connect three
Age
11 to 16
Challenge level
In this game the winner is the first to complete a row of three. Are some squares easier to land on than others?
problem
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First connect three
Age
7 to 11
Challenge level
Add or subtract the two numbers on the spinners and try to complete a row of three. Are there some numbers that are good to aim for?
problem
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Consecutive negative numbers
Age
11 to 14
Challenge level
Do you notice anything about the solutions when you add and/or subtract consecutive negative numbers?
problem
Favourite
Minus one two three
Age
14 to 16
Challenge level
Substitute -1, -2 or -3, into an algebraic expression and you'll
get three results. Is it possible to tell in advance which of those
three will be the largest ?