Research Principles

NSM Number Facts® is informed by research into how high and low attaining children best solve and learn addition and subtraction facts. 7 key principles underpin the programme.

Principle 1

Principle 2

Principle 3

Children benefit from moving beyond counting in ones to solve addition and subtraction facts. Not doing so is associated with low attainment.

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Systematic teaching of derived fact strategies is effective for all, including children identified as low attainers.

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Using a derived fact strategy approach is the best way to commit addition and subtraction facts to memory.

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Principle 4

Principle 5

Principle 6

We have an innate ability to process quantities visually. We can use this to support our learning of addition and subtraction facts.

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Developing an understanding of part whole relationships supports fluency in number facts.

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Teaching derived fact strategies leads not only to fluency in number facts, but also to an understanding of number relationship.

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Principle 7

The automatic retrieval of basic maths facts is critical to solving complex problems.

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