Time

problem
How many times?

Age

7 to 11

Challenge level

On a digital 24 hour clock, at certain times, all the digits are consecutive. How many times like this are there between midnight and 7 a.m.?
problem
Bike ride

Age

7 to 11

Challenge level

Nirmala and Riki live 9 kilometres away from the nearest market. They both want to arrive at the market at exactly noon. What time should each of them start riding their bikes?
problem
A flying holiday

Age

7 to 11

Challenge level

Follow the journey taken by this bird and let us know for how long and in what direction it must fly to return to its starting point.
problem
Back to school

Age

7 to 11

Challenge level

Mr. Sunshine tells the children they will have 2 hours of homework. After several calculations, Harry says he hasn't got time to do this homework. Can you see where his reasoning is wrong?
problem
Take the right angle

Age

7 to 11

Challenge level

How many times in twelve hours do the hands of a clock form a right angle? Use the interactivity to check your answers.
problem
Clocks

Age

7 to 11

Challenge level

These clocks have been reflected in a mirror. What times do they say?
problem
Sweeping hands

Age

7 to 11

Challenge level

Use your knowledge of angles to work out how many degrees the hour and minute hands of a clock travel through in different amounts of time.
problem
Lengthy journeys

Age

7 to 11

Challenge level

Investigate the different distances of these car journeys and find out how long they take.
problem
In order

Age

7 to 11

Challenge level

Can you rank these quantities in order? You may need to find out extra information or perform some experiments to justify your rankings.
problem
Order the changes

Age

7 to 11

Challenge level

Can you order pictures of the development of a frog from frogspawn and of a bean seed growing into a plant?