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Four volumes of the Transum Encyclopaedia are on a shelf as shown here. Billy the book worm begins by eating through the front cover of the first volume and eats his way through to, and including, the back cover of volume four. Calculate the length of his meal.

 Front cover 4mm thick Pages 2.4cm thick altogether Back cover 4mm thick

## A Mathematics Lesson Starter Of The Day

This is the Starter Of The Day for 2nd February.

This year the date is palandromic, it reads the same forwards as backwards when written in the short format

02-02-2020

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Topics: Starter | Decimals

• 10a1, Willenhall School
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• The question says through TO the back cover. This implies that he does not eat the back cover! The answer should be 28.2cm.
• Transum,
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• Thanks to all the good people in Year 10 at the Willenhall School for pointing that our. The words 'and including' have now been added to the question.
Incidently the number of volumes in the Transum Encyclopedia and the thickness of the pages changes each time this page is refreshed so it'll be a different answer next time you visit.
• Teacher Of 10a1, Willenhall School
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• My class will be really pleased to see this! This is a great starter for revising decimals and getting students to think functionally. Thanks!
• Class 8b2, Birkdale High School
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• Oops - we all need to remember to read the question - even Miss!
Thanks - we enjoyed this one!
• Mrs Fairclough's Class, Year 9
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• Our class want to know how he got to the front cover of the first volume if he didn't eat through it??
• Miss Williams, Yr 2
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• This is sooooo good everyone loved this thanks.
• Emma Wheeler, Maidstone
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• It is a really good learning programme for me and my class mates we love all your activities.
• Jenny, Etwall
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• Hum....how on earth does the worm get to the front cover of volume one,then???Teleportation??
• George, Gosport
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• The bookworm was obviously laid as an egg on the front cover of volume one before it was put back in the bookcase.
• Julie, Perth
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[Transum: The surprising answer and explanation appear below but only for teachers who have signed in. You can find out more about creating a teacher account here.]
• Stefanie Lehmann,
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• Surely each book in the middle has got a front and back cover to eat through.

[Transum: That's right Stefanie. But that's only part of the way to finding the correct answer to this problem]

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## Numbers and the Making of Us

I initially heard this book described on the Grammar Girl podcast and immediately went to find out more about it. I now have it on my Christmas present wish list and am looking forward to receiving a copy (hint!).

"Caleb Everett provides a fascinating account of the development of human numeracy, from innate abilities to the complexities of agricultural and trading societies, all viewed against the general background of human cultural evolution. He successfully draws together insights from linguistics, cognitive psychology, anthropology, and archaeology in a way that is accessible to the general reader as well as to specialists." 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=February2

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

Transum.org/go/?to=mislen

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