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Resources tagged with Time similar to Weekly Problem 42 - 2009:

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Challenge level: Challenge Level:1 Challenge Level:2 Challenge Level:3

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Broad Topics > Measures and Mensuration > Time

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Digital Times

Stage: 3 Challenge Level: Challenge Level:1

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?

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Time and Tide

Stage: 1, 2 and 3 Challenge Level: Challenge Level:1

What can you say about when these pictures were taken?

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On Time?

Stage: 1, 2 and 3

This article explains how Greenwich Mean Time was established and in fact, why Greenwich in London was chosen as the standard.

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The Time Is ...

Stage: 2 Challenge Level: Challenge Level:2 Challenge Level:2

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

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Hands Together

Stage: 3 Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3

Sometime during every hour the minute hand lies directly above the hour hand. At what time between 4 and 5 o'clock does this happen?

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Sweeping Hands

Stage: 2 Challenge Level: Challenge Level:1

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.

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Ten Green Bottles

Stage: 2 Challenge Level: Challenge Level:1

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?

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Watch the Clock

Stage: 2 Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3

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?

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Timing

Stage: 2 Short Challenge Level: Challenge Level:2 Challenge Level:2

These two challenges will test your time-keeping!

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Take the Right Angle

Stage: 2 Challenge Level: Challenge Level:1

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

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Two Clocks

Stage: 2 Challenge Level: Challenge Level:2 Challenge Level:2

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

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Wonky Watches

Stage: 2 Challenge Level: Challenge Level:2 Challenge Level:2

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.

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5 on the Clock

Stage: 2 Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3

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?

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Crossing the Atlantic

Stage: 3 Challenge Level: Challenge Level:2 Challenge Level:2

Every day at noon a boat leaves Le Havre for New York while another boat leaves New York for Le Havre. The ocean crossing takes seven days. How many boats will each boat cross during their journey?

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Hello Again

Stage: 3 Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3

Anne completes a circuit around a circular track in 40 seconds. Brenda runs in the opposite direction and meets Anne every 15 seconds. How long does it take Brenda to run around the track?

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Slow Coach

Stage: 2 Challenge Level: Challenge Level:2 Challenge Level:2

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

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Decimal Time

Stage: 3 Challenge Level: Challenge Level:2 Challenge Level:2

Use the clocks to investigate French decimal time in this problem. Can you see how this time system worked?

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A Brief History of Time Measurement

Stage: 2, 3, 4 and 5

Noticing the regular movement of the Sun and the stars has led to a desire to measure time. This article for teachers and learners looks at the history of man's need to measure things.

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Practice Run

Stage: 2 Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3

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

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Buses

Stage: 3 Challenge Level: Challenge Level:2 Challenge Level:2

A bus route has a total duration of 40 minutes. Every 10 minutes, two buses set out, one from each end. How many buses will one bus meet on its way from one end to the other end?

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The New Millennium: When Did it Begin?

Stage: 2

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

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Making Maths: Make a Pendulum

Stage: 2 and 3 Challenge Level: Challenge Level:1

Galileo, a famous inventor who lived about 400 years ago, came up with an idea similar to this for making a time measuring instrument. Can you turn your pendulum into an accurate minute timer?

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Home Time

Stage: 2 Challenge Level: Challenge Level:2 Challenge Level:2

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.

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The Hare and the Tortoise

Stage: 2 Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3

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?

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Rule of Three

Stage: 3 Challenge Level: Challenge Level:1

If it takes four men one day to build a wall, how long does it take 60,000 men to build a similar wall?

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Order the Changes

Stage: 2 Challenge Level: Challenge Level:1

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

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A Flying Holiday

Stage: 2 Short Challenge Level: Challenge Level:1

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.

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Calendar Sorting

Stage: 2 Challenge Level: Challenge Level:1

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

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Now and Then

Stage: 2 Challenge Level: Challenge Level:2 Challenge Level:2

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.

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A Child Is Full of ...

Stage: 2 Short Challenge Level: Challenge Level:1

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

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Right Time

Stage: 3 Challenge Level: Challenge Level:2 Challenge Level:2

At the time of writing the hour and minute hands of my clock are at right angles. How long will it be before they are at right angles again?

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How Long Does it Take?

Stage: 2 Challenge Level: Challenge Level:1

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

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Working with Dinosaurs

Stage: 2

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

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Calendars

Stage: 1, 2 and 3

Calendars were one of the earliest calculating devices developed by civilizations. Find out about the Mayan calendar in this article.

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On What Day Did it Happen?

Stage: 1, 2 and 3

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.

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Clock Hands

Stage: 2 Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3

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

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A Calendar Question

Stage: 2 Challenge Level: Challenge Level:2 Challenge Level:2

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

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Friday 13th

Stage: 3 Challenge Level: Challenge Level:2 Challenge Level:2

This month there is a Friday the thirteenth and this year there are three. Can you explain why every year must contain at least one Friday the thirteenth?

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How Many Times?

Stage: 2 Challenge Level: Challenge Level:1

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.?

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Walk and Ride

Stage: 2 and 3 Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3

How far have these students walked by the time the teacher's car reaches them after their bus broke down?

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Bike Ride

Stage: 2 Challenge Level: Challenge Level:1

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?

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A History of Astronomy

Stage: 2

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

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Train Timetable

Stage: 2 Challenge Level: Challenge Level:1

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

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Times

Stage: 2 Challenge Level: Challenge Level:1

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!

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Palindromic Date

Stage: 2 Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3

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

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Lengthy Journeys

Stage: 2 Challenge Level: Challenge Level:1

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

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Tom Learns to Cook

Stage: 2 and 3 Challenge Level: Challenge Level:1

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.

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Clocking Off

Stage: 2, 3 and 4 Challenge Level: Challenge Level:1

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?

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2010: A Year of Investigations

Stage: 1, 2 and 3

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

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Order, Order!

Stage: 2 Challenge Level: Challenge Level:1

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