Addition and subtraction
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articleThis article suggests some ways of making sense of calculations involving positive and negative numbers. -
articleDot Card Games
These games devised by Jenni Way use dot cards which will help children see the structure of numbers 1-6 and give them confidence as they begin to add and subtract these numbers. -
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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articlePlace Value as a Building Block for Developing Fluency in the Calculation Process
This article for primary teachers encourages exploration of two fundamental ideas, exchange and 'unitising', which will help children become more fluent when calculating.
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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 a selection of NRICH tasks can help.
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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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articleAdding and Subtracting Positive and Negative Numbers
How can we help students make sense of addition and subtraction of negative numbers?