Weather Maths

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
  • 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
  • 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.
  • This was fun, challenging, confusing, and a good mixture of questions, and just as well it was a 24hour clock.
  • Daisy And Conner, Scotland
  • Bonjour We loved this Maths Starter YOU ROCK TRANSUM.
  • Ole And Daisy, Year 6, Beckley School
  • We think Las Vegas and Delhi have the biggest time gap.
  • 6PJ, Epsom
  • Please lengthen the time the temperatures/times are displayed before they change.
  • Mr T, Kent, UK
  • Is anyone going to do anything about the numbers changing so quickly.
    Surely it can't be that difficult.
    Questions are brilliant, thanks.
  • Transum,
  • For all those who mentioned that the numbers change a too quickly there is now a new version with analogue clocks above. Thanks so much for your comments about this Starter. Keep them coming.
  • Peter,
  • I think the USA and the Middle East has the largest time differences.
  • 6r, Lacey Gardens
  • Nairobi
    St Petersburgh.
  • 5R, Cavendish Close Juniors
  • Auckland, New Zealand and Vancouver, Canada.
  • Transum's Nan,
  • Whether the weather be fine or whether the weather be not.
    Whether the weather be cold or whether the weather be hot.
    We'll weather the weather whatever the weather, whether we like it or not.

How did you use this starter? Can you suggest how teachers could present or develop this resource? Do you have any comments? It is always useful to receive feedback and helps make this free resource even more useful for Maths teachers anywhere in the world.
Click here to enter your comments.

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...

Apple iPad Pro

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 gift for anyone.

The redesigned Retina display is as stunning to look at as it is to touch. It all comes with iOS, the world's most advanced mobile operating system. iPad Pro. Everything you want modern computing to be. more...

Before giving an iPad as a Christmas gift you could add a link to iPad Maths to the home screen.

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...

Christmas Maths

This book provides a wealth of fun activities with a Christmas theme. Each photocopiable worksheet is matched to the Numeracy Strategy and compatible with the Scottish 5-14 Guidelines. This series is designed for busy teachers in the late Autumn term who are desperate for materials that are relevant and interesting and that can be completed with minimun supervision.

All the activities are suitable for use by class teachers, supply teachers, SEN teachers and classroom assistants and cover topics such as 'How many partridges did the true love give all together?' and 'Filling a sleigh with presents by rolling a dice!'. Children will have lots of fun working through the Christmas Maths themes but also gain valuable skills along the way.

A great source of ideas and another reasonably priced stocking filler. more...

A Compendium Of 	Mathematical Methods

A Compendium Of Mathematical Methods

How many different methods do you know to solve simultaneous equations? To multiply decimals? To find the nth term of a sequence?

A Compendium of Mathematical Methods brings together over one hundred different approaches from classrooms all over the world, giving curious mathematicians the opportunity to explore fascinating methods that they've never before encountered.

If you teach mathematics to any age group in any country, you are guaranteed to learn lots of new things from this delightful book. It will deepen your subject knowledge and enhance your teaching, whatever your existing level of expertise. It will inspire you to explore new approaches with your pupils and provide valuable guidance on explanations and misconceptions. more...

Math with Bad Drawings

I had been tutoring the wonderful Betsy for five years. When the day came for our last ever session together before the end of her Year 13, I received this beautiful book as a gift of appreciation.

This a very readable book by Ben Orlin. I'm really enjoying the humour in the writing and the drawings are great.

Ben Orlin answers maths' three big questions: Why do I need to learn this? When am I ever going to use it? Why is it so hard? The answers come in various forms-cartoons, drawings, jokes, and the stories and insights of an empathetic teacher who believes that mathematics should belong to everyone. more...

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

Maths T-Shirts

Maths T-shirts on Amazon
Maths T-Shirts on Amazon

Your access to the majority of the Transum resources continues to be free but you can help support the continued growth of the website by doing your Amazon shopping using the links on this page. Below is an Amazon link. As an Amazon Associate I earn a small amount from qualifying purchases which helps pay for the upkeep of this website.

Educational Technology on Amazon


Online Maths Shop

Laptops In Lessons

Teacher, do your students have access to computers such as tablets, iPads or Laptops?  This page was really designed for projection on a whiteboard but if you really want the students to have access to it here is a concise URL for a version of this page without the comments:

However it would be better to assign one of the student interactive activities below.

Laptops In Lessons

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

Student Activity

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:


Alternatively the level of air pollution in cities around the world might make a good topic for investigation. Data showing the AQI (Air Quality Index) is available at


©1997-2022 WWW.TRANSUM.ORG