### There are 8 results

Broad Topics >

Secondary processes > PM - Working Systematically

##### Age 16 to 18 Challenge Level:

How can you quickly sort a suit of cards in order from Ace to King?

##### Age 16 to 18 Challenge Level:

Can you crack these very difficult challenge ciphers? How might you systematise the cracking of unknown ciphers?

##### Age 16 to 18 Challenge Level:

Can you set the logic gates so that this machine can decide how many bulbs have been switched on?

##### Age 16 to 18 Challenge Level:

Use cunning to work out a strategy to win this game.

##### Age 14 to 18 Challenge Level:

Try to solve this very difficult problem and then study our two suggested solutions. How would you use your knowledge to try to solve variants on the original problem?

##### Age 14 to 16 Challenge Level:

Many numbers can be expressed as the difference of two perfect squares. What do you notice about the numbers you CANNOT make?

##### Age 11 to 16 Challenge Level:

Can you use small coloured cubes to make a 3 by 3 by 3 cube so that each face of the bigger cube contains one of each colour?

##### Age 11 to 16 Challenge Level:

Here is a machine with four coloured lights. Can you develop a strategy to work out the rules controlling each light?