BirminghamEngland BangkokThailand BostonMA, USA BrisbaneAustralia
 1. Which city is currently the warmest? 3. What is the range of temperatures? 5. What is the time difference between Birmingham and Bangkok. 7. It takes 11 hours to fly from Bangkok to Birmingham. If you take off at midday from Bangkok, what time will you arrive in Birmingham (local time)? 2. What is the mean (average) temperature of these four cities? 4. Estimate the temperatures inside and outside your classroom right now. 6. What will be the time in Boston when it is half past midnight in Brisbane? 8. Can you guess which two cities in the world have the biggest time difference?

A Mathematics Lesson Starter Of The Day

Topics: Starter | Data Handling | Live Data | Statistics | Time

• M Darwin, The McAuley Catholic High School
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• Live data the numbers change too quickly even though they repeat, it would be better if they were on longer - about 8 to 10 seconds.
• F. Ricciardi, The Charter School, South London
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• I agree numbers change a too quickly. Not even enough time for them to jot them down before they change. Great idea though!!
• Colin MacKay., Carnoustie High School.
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• This was fun, challenging, confusing, and a good mixture of questions, and just as well it was a 24hour clock.
• Daisy And Conner, Scotland
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• Bonjour We loved this Maths Starter YOU ROCK TRANSUM.
• Ole And Daisy, Year 6, Beckley School
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• We think Las Vegas and Delhi have the biggest time gap.
• 6PJ, Epsom
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• Please lengthen the time the temperatures/times are displayed before they change.
• Mr T, Kent, UK
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• Is anyone going to do anything about the numbers changing so quickly.
Surely it can't be that difficult.
Questions are brilliant, thanks.
• Transum,
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• For all those who mentioned that the numbers change a too quickly there is now a new version with analogue clocks above. Click on the button under the Starter to see the alternative (original) version of this Starter in which the numbers change too fast for many people.
• Peter,
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• I think the USA and the Middle East has the largest time differences.
• 6r, Lacey Gardens
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• Nairobi
St Petersburgh.
• 5R, Cavendish Close Juniors
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• Auckland, New Zealand and Vancouver, Canada.

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This starter has scored a mean of 3.0 out of 5 based on 165 votes.

Previous Day | This starter is for 27 March | Next Day

The temperature and times given are current (live) data so we are unable to provide answers to all of the questions.

 1. Which city is currently the warmest? Probably Bangkok but it depends on the current conditions. 3. What is the range of temperatures? Take the coldest temperature from the warmest. 5. What is the time difference between Birmingham and Bangkok?. Seven hours in the winter and six hours in the summer (daylight saving time) 7. It takes 11 hours to fly from Bangkok to Birmingham. If you take off at midday from Bangkok, what time will you arrive in Birmingham (local time)? 4pm. Though there is currently no direct flight from Bangkok to Birmingham! 2. What is the mean (average) temperature of these four cities? Add up the temperatures then divide by four. 4. Estimate the temperatures inside and outside your classroom right now. The inside temperature is probably about 23o C (if you are feeling comfortable). 6. What will be the time in Boston when it is half past midnight in Brisbane? 09:30 though this might be affected at different times of the year by daylight saving time. Does anyone know? 8. Can you guess which two cities in the world have the biggest time difference? Depending on the definition of a city! Let us know what you think here.

Christmas Present Ideas

It is often very difficult choosing Christmas presents for family and friends but so here are some seasonal, mathematics-related gifts chosen and recommended by Transum Mathematics.

Equate board game

Here's a great board game that will give any family with school-aged kids hours of worthwhile fun. Christmas is a time for board games but this one will still be useful at any time of year. Games can be adapted to suit many levels of Mathematical ability.

For Maths tutors working with just one or small groups of pupils this game has proved to be an excellent activity for a tutorial. Deciding on the best moves can spark pertinent discussions about mathematical concepts.

Equate looks a bit like Scrabble--for aspiring mathematicians, that is. Designed by a real mathematician, it works like this: You put down tiles on a board and make points by correctly completing simple equations. Your nine tiles include both numbers and mathematical symbols; you can add on to previous plays both vertically and horizontally. more...

How Not To Be Wrong

The maths we learn in school can seem like an abstract set of rules, laid down by the ancients and not to be questioned. In fact, Jordan Ellenberg shows us, maths touches on everything we do, and a little mathematical knowledge reveals the hidden structures that lie beneath the world's messy and chaotic surface. In How Not to be Wrong, Ellenberg explores the mathematician's method of analyzing life, from the everyday to the cosmic, showing us which numbers to defend, which ones to ignore, and when to change the equation entirely. Along the way, he explains calculus in a single page, describes Gödel's theorem using only one-syllable words, and reveals how early you actually need to get to the airport.

What more could the inquisitive adult want for Christmas? This book makes a cosy, interesting read in front of the fire on those cold winter evenings. more...

Graphic Display Calculator

This handheld device and companion software are designed to generate opportunities for classroom exploration and to promote greater understanding of core concepts in the mathematics and science classroom. TI-Nspire technology has been developed through sound classroom research which shows that "linked multiple representation are crucial in development of conceptual understanding and it is feasible only through use of a technology such as TI-Nspire, which provides simultaneous, dynamically linked representations of graphs, equations, data, and verbal explanations, such that a change in one representation is immediately reflected in the others.

For the young people in your life it is a great investment. Bought as a Christmas present but useful for many years to come as the young person turns into an A-level candidate then works their way through university. more...

The analytics show that more and more people are accessing Transum Mathematics via an iPad as it is so portable and responsive. The iPad has so many other uses in addition to solving Transum's puzzles and challenges and it would make an excellent Christmas gift for anyone.

You have to hold iPad Air to believe it. It’s just 7.5 millimeters thin and weighs just one pound. The stunning Retina display sits inside thinner bezels, so all you see is your content. And an incredible amount of power lies inside the sleek enclosure. So you can do so much more. With so much less. more...

Aristotle's Number Puzzle

It’s a bit of a tradition to give puzzles as Christmas Gifts to nieces and nephews. This puzzle is ideal for the keen puzzle solver who would like a challenge that will continue over the festive period (at least!).

This number puzzle involves nineteen numbers arranged into a hexagon. The goal of the puzzle is to rearrange the numbers so each of the fifteen rows add up to 38. It comes in a wooden style with an antique, aged look.

Keep the Maths in Christmaths with this reasonably priced stocking filler. more...

The Story Of Maths [DVD]

The films in this ambitious series offer clear, accessible explanations of important mathematical ideas but are also packed with engaging anecdotes, fascinating biographical details, and pivotal episodes in the lives of the great mathematicians. Engaging, enlightening and entertaining, the series gives viewers new and often surprising insights into the central importance of mathematics, establishing this discipline to be one of humanity s greatest cultural achievements. This DVD contains all four programmes from the BBC series.

Marcus du Sautoy's wonderful programmes make a perfect Christmas gift more...

Click the images above to see all the details of these gift ideas and to buy them online.

 Teacher, do your students have access to computers?Do they have iPads or Laptops in Lessons? Whether your students each have a TabletPC, a Surface or a Mac, this activity lends itself to eLearning (Engaged Learning).

Transum.org/go/?Start=March27

Here is the URL which will take them to a related student activity.

Transum.org/go/?to=Temperature

There are now extensive weather records for recent years available on the Internet. Students could find this data, organise it, apply their knowledge of probability and produce their own weather forecast for the next week.

Here are some examples of the data that can be easily used in students' projects:

For Students:

For All: