Which times on a digital clock have a line of symmetry? Which look the same upside-down? You might like to try this investigation and find out!

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?

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?

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

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?

Stuart's watch loses two minutes every hour. Adam's watch gains one minute every hour. Use the information to work out what time (the real time) they arrived at the airport.

Chandrika was practising a long distance run. Can you work out how long the race was from the information?

This article for teachers suggests ideas for activities built around 10 and 2010.

Alice's mum needs to go to each child's house just once and then back home again. How many different routes are there? Use the information to find out how long each road is on the route she took.

What is the date in February 2002 where the 8 digits are palindromic if the date is written in the British way?

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.?

My cousin was 24 years old on Friday April 5th in 1974. On what day of the week was she born?

In this matching game, you have to decide how long different events take.

The pages of my calendar have got mixed up. Can you sort them out?

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?

Measure problems at primary level that may require resilience.

July 1st 2001 was on a Sunday. July 1st 2002 was on a Monday. When did July 1st fall on a Monday again?

Measure problems at primary level that require careful consideration.

Measure problems for inquiring primary learners.

Measure problems for primary learners to work on with others.

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

In this version of the story of the hare and the tortoise, the race is 10 kilometres long. Can you work out how long the hare sleeps for using the information given?

Liitle Millennium Man was born on Saturday 1st January 2000 and he will retire on the first Saturday 1st January that occurs after his 60th birthday. How old will he be when he retires?

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

Look at the changes in results on some of the athletics track events at the Olympic Games in 1908 and 1948. Compare the results for 2012.

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

Can you place these quantities in order from smallest to largest?

Do you know the rhyme about ten green bottles hanging on a wall? If the first bottle fell at ten past five and the others fell down at 5 minute intervals, what time would the last bottle fall down?

Not everybody agreed that the Third Millennium actually began on January 1st 2000. Find out why by reading this brief article.

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

If Tom wants to learn to cook his favourite supper, he needs to make a schedule so that everything is ready at the same time.

This article for teachers suggests ways in which dinosaurs can be a great context for discussing measurement.

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

Can you put these times on the clocks in order? You might like to arrange them in a circle.

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.

Astronomy grew out of problems that the early civilisations had. They needed to solve problems relating to time and distance - both mathematical topics.

Use the information to work out the timetable for the three trains travelling between City station and Farmland station.

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.

This investigation explores using different shapes as the hands of the clock. What things occur as the the hands move.

How many of this company's coaches travelling in the opposite direction does the 10 am coach from Alphaton pass before reaching Betaville?

Two engines, at opposite ends of a single track railway line, set off towards one another just as a fly, sitting on the front of one of the engines, sets off flying along the railway line...

Read this article to find out the mathematical method for working out what day of the week each particular date fell on back as far as 1700.

N people visit their friends staying N kilometres along the coast. Some walk along the cliff path at N km an hour, the rest go by car. How long is the road?

Can you create a story that would describe the movement of the man shown on these graphs? Use the interactivity to try out our ideas.

Two trains set off at the same time from each end of a single straight railway line. A very fast bee starts off in front of the first train and flies continuously back and forth between the. . . .

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

Use the interactivity to move Mr Pearson and his dog. Can you move him so that the graph shows a curve?

Which segment on a digital clock is lit most each day? Which segment is lit least? Does it make any difference if it is set to 12 hours or 24 hours?

I found these clocks in the Arts Centre at the University of Warwick intriguing - do they really need four clocks and what times would be ambiguous with only two or three of them?