Double these numbers and write down the answers in the back of your book:

 4 6 10 12 17 18 25 31 49 55 65 74 449 510 1169 1463 1884 2071 6.8 0.59 0.052 0.0071 0.0004 -97.64

## A Mathematics Lesson Starter Of The Day

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Topics: Starter | Arithmetic

•
• I like this and so did my pupils, extremely good idea.
• The Best Maths Class Ever 7cd/M2, King Alfred's College, Oxfordshire
•
• Too simple. Just 24 multiplication questions that everyone could do upsidedown... No offence intended cos we love your website really.
• Murran, Oxfordshire
•
• Not the best starter ever!
Too simple!
• Y6, Tickhill St. Mary's
•
• We liked this: it wasn't too hard.
• Beth, NB
•
• Excellent warm-up when you don't allow paper. How far can they go mentally...that's how I used it.
• Cameron, Y6 Charnwood Primary, Lichfield
•
• It was a good warm up to get the class ready for harder times tables.
• Transum,
•
• Undoubtedly this starter will be tackled by different classes in different ways depending on their abilities. For some it will be quite a challenge but more able pupils could treat it as a gentle warm up before the main part of the lesson begins. There is nothing wrong with a gentle warm up, athletes do it often. It does not create stress but allows the individual to enter the right frame of mind for the delights of the lesson to come. Don’t forget to refresh the page to see a new of numbers generated randomly allowing this starter to be used with the same group on more than one occasion.

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.

If you don't have the time to provide feedback we'd really appreciate it if you could give this page a score! We are constantly improving and adding to these starters so it would be really helpful to know which ones are most useful. Simply click on a button below:

Excellent, I would like to see more like this
Good, achieved the results I required
Satisfactory
Didn't really capture the interest of the students
Not for me! I wouldn't use this type of activity.

This starter has scored a mean of 3.1 out of 5 based on 192 votes.

Previous Day | This starter is for 7 September | Next Day

4 x 2 =
8
6 x 2 =
12
10 x 2 =
20
12 x 2 =
24
17 x 2 =
34
18 x 2 =
36
25 x 2 =
50
31 x 2 =
62
49 x 2 =
98
55 x 2 =
110
65 x 2 =
130
74 x 2 =
148
449 x 2 =
898
510 x 2 =
1020
1169 x 2 =
2338
1463 x 2 =
2926
1884 x 2 =
3768
2071 x 2 =
4142
6.8 x 2 =
13.6
0.59 x 2 =
1.18
0.052 x 2 =
0.104
0.0071 x 2 =
0.0142
0.0004 x 2 =
0.0008
-97.64 x 2 =
-195.28

Note to teacher: Doing this activity once with a class helps students develop strategies. It is only when they do this activity a second time that they will have the opportunity to practise those strategies. That is when the learning is consolidated. Click the button above to regenerate another version of this starter from random numbers.

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 search box and some items chosen and recommended by Transum Mathematics to get you started.

## Have you read Craig's book yet?

Craig Barton must surely be the voice of Mathematics teachers in the UK. His wonderful podcasts interviewing the industry experts have culminated in this wonderful book. As Craig says: "I genuinely believe I have never taught mathematics better, and my students have never learned more. I just wish I had known all of this twelve years ago..." more...

"How I wish I'd taught Maths" is an extraordinary and important book. Part guide to research, part memoir, part survival handbook, it’s a wonderfully accessible guide to the latest research on teaching mathematics, presented in a disarmingly honest and readable way. I know of no other book that presents as much usable research evidence on the dos and don’ts of mathematics teaching in such a clear and practical way. No matter how long you have been doing it, if you teach mathematics—from primary school to university—this book is for you." Dylan Wiliam, Emeritus Professor of Educational Assessment, UCL.

## Casio Classwiz Calculator

There is currently a lot of talk about this new calculator being the best in its price range for use in the Maths classroom. The new ClassWiz features a high-resolution display making it easier to view numerical formulas and symbols but it isn't a graphical calculator as such (it has the capacity to draw graphs on your smart phone or tablet, via a scannable QR code and an app).

As well as basic spreadsheet mode and an equation solving feature you also get the ability to solve quadratic, cubic or quartic polynomial inequalities and the answer is given just as it should be written down, using the correct inequality symbols!

This calculator has a high-performance processor and twice the memory of previous models ensuring speedy operation and superior computational power.more...

## Hello World

You are buying a (driverless) car. One vehicle is programmed to save as many lives as possible in a collision. Another promises to prioritize the lives of its passengers. Which do you choose?

Welcome to the age of the algorithm, the story of a not-too-distant future where machines rule supreme, making important decisions – in healthcare, transport, finance, security, what we watch, where we go even who we send to prison. So how much should we rely on them? What kind of future do we want?

Hannah Fry takes us on a tour of the good, the bad and the downright ugly of the algorithms that surround us. In Hello World she lifts the lid on their inner workings, demonstrates their power, exposes their limitations, and examines whether they really are an improvement on the humans they are replacing.

This calculator has a high-performance processor and twice the memory of previous models ensuring speedy operation and superior computational power.more...

 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=September7

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

Transum.org/go/?to=doubling

For Students:

For All: