'I'm Not a Maths Person' Is a Lie — And We Need to Stop Telling It

At some point in the last three days, an adult told a primary school child — directly or indirectly — that being bad at maths is a personality trait.

This is wrong. It causes harm. The evidence for both claims is substantial.

The fixed mindset myth about mathematics

The belief that mathematical ability is innate is extraordinarily widespread in English-speaking countries. It is significantly less common in Japan, Singapore, and Finland — countries with the highest mathematical attainment. In those cultures, mathematical competence is seen as a product of effort and instruction, not inborn talent. This is not a coincidence.

When children believe ability is fixed, they interpret struggle as evidence of incapacity. A difficult problem triggers withdrawal ('I'm not a maths person') rather than increased effort. The belief is self-fulfilling.

What research actually shows

Brain imaging studies show that mathematical processing is distributed across multiple brain regions, all of which develop in response to instruction and practice. Mathematical ability is not a stable trait — it is a set of skills built through exposure, teaching, and deliberate practice.

How primary teachers can help

**Never claim to be bad at maths.** Particularly if you are female: 'I was never any good at this' normalises avoidance and is absorbed by girls before they can question it.

**Praise effort and strategy, not intelligence.** 'You worked really hard on that' is more useful than 'you're so clever'. The latter suggests the quality is innate.

**Make struggle visible and normal.** Teachers who model confident fluency only suggest that struggle means failure.

**Be specific about what's difficult.** 'Maths is hard' triggers learned helplessness. 'Long division has several steps to track simultaneously — here's how we practise each step' is actionable.

**Respond to 'I can't do maths' with 'You can't do this yet.'** The word 'yet' is backed by research as one of the most effective single-word interventions in response to mathematical self-doubt. It is also, simply, true.