## A Mathematics Lesson Starter Of The Day

12cm

10cm

### Calculate the distance around this shape(all angles are right angles)

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• Y9 Maths girlies in da Heeley hood, Rawthorpe High, Huddersfield
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• Hello, this was easy peasy but we enjoyed it, particularly Tamera who says she has a room at home shaped like that.
We love a good starter, especially on a Monday morning. x
• Lewis Paton, Carnoustie High School.
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• It was shapetastic.
• 7abM3 Maths Class, King Alfred's College OXON
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• Today's starter sparked off a good chat about shapes. Eventually most of my class could see how to get the answer.
• Transum,
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• So when the answer is realised there is typically a sense of amazement that the calculation is so simple. As a follow-on activity pupils might be challenged to draw another seemingly complex shape that has a simple calculation to calculate the perimeter. This is a useful activity which helps provide a sound background for geometrical problem solving in general.
• Winnie, London
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• My year 6 class just loved this puzzle.
• Mrs Walker, St.James' School
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• My class had a discussion about this perimeter puzzle and I was then able to teach my class using this problem. A great morning starter.
• My Class, Lord Grey School
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• AWESOME!! It took us a while but we got it in the end.
• Mr Lloyd, DSLV 5TL
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• Some of the class got this straight away, but the rest of the class couldn't see the answer.
• British International School, Moscow
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• My class found this problem angleastic!!!!!
• Lloyd Entwistle, Salford City College
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• Loved this problem. Students first complained that they did not have enough information but then slowly realised that they could solve it!

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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Previous Day | This starter is for 9 June | Next Day

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## 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...

## GCSE Revision and Practice

Whatever exam board you use for GCSE Mathematics, this book by David Rayner remains an all-round winner. With this latest edition presented in full colour and completely updated for the new GCSE(9-1) specifications, this uniquely effective text continues to increase your chance of obtaining a good grade.

This book is targeted at the Higher tier GCSE, and provides a wealth of practice with careful progression, alongside substantial revision support for the new-style grading and exam questions. With all the new topics included, and a dedicated section on using and applying mathematics, this unique resource can be used either as a course book over two or three years or as a revision text in the run-up to exams. 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=June9

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

Transum.org/go/?to=logo

## Curriculum Reference

See the National Curriculum page for links to related online activities and resources.

For Students:

For All: