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It's a Tie

7 to 11

Kaia is sure that her father has worn a particular tie twice a week in at least five of the last ten weeks, but her father disagrees. Who do you think is right?

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Favourite

Totality

5 to 11

This is an adding game for two players. Can you be the first to reach the target?

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Number Tracks

7 to 11

Ben's class were cutting up number tracks. First they cut them into twos and added up the numbers on each piece. What patterns could they see?

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The Koch Snowflake

16 to 18

Explore the strange geometrical properties of the Koch Snowflake.

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Making Waves

16 to 18

Which is larger cos(sin x) or sin(cos x) ? Does this depend on x ?

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Carbon Footprints

14 to 16

Is it really greener to go on the bus, or to buy local?

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Six Discs

14 to 16

Six circular discs are packed in different-shaped boxes so that the discs touch their neighbours and the sides of the box. Can you put the boxes in order according to the areas of their bases?

problem

All Wrapped Up

7 to 11

What is the largest cuboid you can wrap in an A3 sheet of paper?

problem

To Swim or to Run?

16 to 18

The famous film star Birkhoff Maclane wants to reach her refreshing drink. Should she run around the pool or swim across?

problem

Olympic Magic

14 to 16

in how many ways can you place the numbers 1, 2, 3 … 9 in the nine regions of the Olympic Emblem (5 overlapping circles) so that the amount in each ring is the same?

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It's a Tie

Totality

Number Tracks

The Koch Snowflake

Making Waves

Carbon Footprints

Six Discs

All Wrapped Up

To Swim or to Run?

Olympic Magic