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Revision as of 11:29, 13 October 2020
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|isbn=9781999947507
|website=https://www.archinterface.co.uk/category/emilys-blog/
|aznuk=1999947509
|aznus=1999947509
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Emily found words ''useful'', but counting was what she loved best. Obviously , you can count anything and there's no limit to how far you can go, but then Emily moved a step further and began counting in twos. She knew all about odd and even numbers. Then she began counting in threes: half of the list were even numbers, but the other half were odd and it was this list of odd numbers which occured when you counted in threes which she called ''threeven''. (Actually, this confused me a little bit at first as they're a subset of the odd numbers but sound as though they ought to be a subset of the even numbers, but it all worked out well when I really thought about it.)
When you count in fours the numbers are not very interesting, as they're all even numbers. Emily was disappointed but then she tried counting in fives and developed a list of numbers which occured when you counted in fives but weren't even and didn't appear in the threeven list. These numbers she called ''fiven''. She made a pie chart: half of it contained all the even numbers but the other side was divided into ''oddish'' numbers (those which she hadn't yet moved into one of the subsets), ''threeven'' and ''fiven''.
I'd like to thank the publisher for sending a copy to the Bookbag.
Children who enjoy this book are likely to go on to enjoy [[Professor Stewart's Hoard of Mathematical Treasures by Ian Stewart|Professor Stewart's Hoard of Mathematical Treasures]]. You could shelve this next to [[Count on Me by Miguel Tanco]].
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