Time

Mandeep's watch loses two minutes every hour. Adam's watch gains one minute every hour. Can you work out what time they arrived at the airport?

These clocks have only one hand, but can you work out what time they are showing from the information?

Can you put these mixed-up times in order? You could arrange them in a circle.

Have a look at the results for some events at past Olympic Games. Can you use these to predict the results at the next Olympics?

Use the interactivity to move Pat. Can you reproduce the graphs and tell their story?

During the third hour after midnight the hands on a clock point in the same direction (so one hand is over the top of the other). At what time, to the nearest second, does this happen?

On a digital clock showing 24 hour time, over a whole day, how many times does a 5 appear? Is it the same number for a 12 hour clock over a whole day?

Here's a strategy game with lots to explore. Can you find out enough to guarantee a win, no matter what the settings?

Can you rank these sets of quantities in order, from smallest to largest? Can you provide convincing evidence for your rankings?

My measurements have got all jumbled up! Swap them around and see if you can find a combination where every measurement is valid.