Addition and subtraction
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articleThis article for primary teachers encourages exploration of two fundamental ideas, exchange and 'unitising', which will help children become more fluent when calculating. -
articleLet's Get Flexible!
In this article for primary teachers, Ems outlines how we can encourage learners to be flexible in their approach to calculation, and why this is crucial.
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articleGetting the Balance Right
In this article for primary teachers, Ems shares some common misconceptions surrounding the equals sign, and suggests ways to help learners develop their understanding. -
pageMathdoku Demonstration
This video of Charlie and Liz solving a 6 by 6 Mathdoku may give you ideas for strategies to try.
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projectHow Many?
This project challenges you to work out the number of cubes hidden under a cloth. What questions would you like to ask?
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articleNumbers Numbers Everywhere!
Bernard Bagnall recommends some primary school problems which use numbers from the environment around us, from clocks to house numbers.
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articleDeveloping Number Fluency - What, Why and How
In this article for primary teachers, Lynne McClure outlines what is meant by fluency in the context of number and explains how our selection of NRICH tasks can help.
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articleAdding and Subtracting Positive and Negative Numbers
How can we help students make sense of addition and subtraction of negative numbers?
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articleAn Alphanumeric
Freddie Manners, of Packwood Haugh School in Shropshire solved an alphanumeric without using the extra information supplied and this article explains his reasoning.