= 38 = ? = ? = 31 = 27 = 36 = ? = ?

Each traffic sign stands for a number. Some of the sums of rows or columns are shown. What numbers might the signs stand for?

[Teacher: Press the F11 key and hide the remaining toolbar to show the whole of this grid if it doesn't fit on your screen]

A Mathematics Lesson Starter Of The Day

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• Mr. H, Mary Hare School
•
• Chloe found a different solution.
• The Best Maths Class Ever. 7cd/M2, King Alfred's College, Oxfordshire UK
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• Jack, Georgina and Patrick found the solution very quickly. Olivia found out that the top column was the same as the right side column. Some of us found it hard (including sir!!).
• Year 9, Leicester
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• Very hard and dodgy answers!
Maybe a good starter for older classes.
• Transum,
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• Thanks for the comments above. They refer to the randomly generated puzzle which you can see by pressing the button below. The puzzle you see the first time you visit this page should be reasonable for a 10 to 14 year old to solve and has a unique solution. Let us know how it works for your students.
• Apex Year5/6, Apex Primary
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• At Apex, our year5/6 class found is quite easy! but a good starter :).
• Selina, Stanwell Fields
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• Easy for us 6 year 6.
• Karris, Oxford University
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• Easy! The Class love it.
• Mrs Webster, Brackenwood Junior School
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• On the whole Y4 enjoyed this task but some children found it quite tricky.
• Mjd School, 6
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• This is cool for the year 6.
• 8E, Friary
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• 8E at Friary School found this 'a bit easy'! Something a bit more challenging please!

[Transum: Well done 8E. Did you scroll down the page and see the extension?]

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.

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Excellent, I would like to see more like this
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Not for me! I wouldn't use this type of activity.

This starter has scored a mean of 3.2 out of 5 based on 549 votes.

Previous Day | This starter is for 11 March | Next Day

 = 9 = 6 = 10 = 2

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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. 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=March11

Here is the URL which will take them to another problem solving activity.

Transum.org/go/?to=tantrum

Extension

The answer to this puzzle is not 12. What is it?