Place value

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Learn about number bases

We are used to writing numbers in base ten, using 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9. Eg. 75 means 7 tens and five units. This article explains how numbers can be written in any number base.
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An alphanumeric

Freddie Manners, of Packwood Haugh School in Shropshire solved an alphanumeric without using the extra information supplied and this article explains his reasoning.
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Number sense series: a sense of 'ten' and place value

Once a basic number sense has developed for numbers up to ten, a strong 'sense of ten' needs to be developed as a foundation for both place value and mental calculations.
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Path of discovery series 3: I do and I understand

Marion Bond recommends that children should be allowed to use 'apparatus', so that they can physically handle the numbers involved in their calculations, for longer, or across a wider ability band, than is currently the norm.
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Palindromes

Find out about palindromic numbers by reading this article.
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Adding with the abacus

Nowadays the calculator is very familiar to many of us. What did people do to save time working out more difficult problems before the calculator existed?
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Pupils' recording or pupils recording

This article, written for teachers, looks at the different kinds of recordings encountered in Primary Mathematics lessons and the importance of not jumping to conclusions!
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A story about absolutely nothing

This article for the young and old talks about the origins of our number system and the important role zero has to play in it.
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Ten-frames games

These games use ten-frames to develop children's 'sense of ten'.
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Journeys on the Gattegno tens chart

Alf describes how the Gattegno chart helped a class of 7-9 year olds gain an awareness of place value and of the inverse relationship between multiplication and division.