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21 September 2026

Nobody Is Born a Maths Person

"I was never a Maths person."

Many Australian parents have said some version of this. Usually as an apology, at a parent-teacher night, or while looking at homework they can't help with. It sounds like modesty. It lands on a child as a diagnosis. Maths ability is a thing you're born with, and our family didn't get any.

There's a family in Hungary that spent thirty years arguing otherwise.

The experiment

In the late 1960s, László Polgár, an educational psychologist, made a bold claim. Genius isn't inherited, it's built. Any healthy child, taught deliberately from an early age in a single field, could be brought to world-class level. He wrote a book about it. Then he decided to test it on his own children.

He needed a field where the result couldn't be argued with. Not painting, not writing, where "world-class" is a matter of taste. He picked chess, because chess has ratings. Tournament results. An objective scoreboard that doesn't care whose child you are.

He and his wife Klara home-schooled their three daughters and taught them chess, despite neither being exceptional at the game.

What happened

Susan, the eldest, became the first woman to earn the Grandmaster title through the same tournament route as men, in 1991. Sofia, the middle daughter, produced a tournament performance in Rome at fourteen that is still cited as one of the strongest anyone has recorded.

Judit, the youngest, became the best female chess player in history. She reached number eight in the world — against everyone, not in a women's division, which she mostly refused to play in. She beat Kasparov, Karpov, Anand and Carlsen. Not one of those was a fluke against a weak opponent having an off day.

Three daughters. One household. One plan.

What it does and doesn't prove

Let's not oversell the message, though.

Three children from one family isn't a controlled study. The parents were unusually committed and unusually skilled teachers, which most households aren't. And the daughters had their own interest, and loved the game rather than enduring it. You can't cleanly separate what the method did from who they already were.

So the Polgárs don't prove talent is irrelevant. But they do disprove an insidious claim. That reaching a high level requires some innate gift you either have or don't. Three children, taught deliberately, all reached a level the world had been told was reserved for the naturally gifted. Whatever the ceiling is, it sits far above where most people assume it does.

That matters more for Maths than for chess, because almost nobody tells their child they lack a chess gene. They say it about Maths constantly.

The part that transfers

You're not going to home-school your child in a single discipline from age four. That isn't the lesson.

The lesson is in the two things the Polgárs did that any household can copy. They practised deliberately. Structured, daily, at a level that stretched without breaking. And a parent was in the room, treating the thing as worth doing.

I wrote in Most Kids Study the Wrong Way about research on mastery learning. Most students can master most topics, given the right pace and enough of the right kind of practice. Just look at the Polgár sisters.

The second part is the one parents underrate. Your child's belief about whether they're a Maths person is mostly inherited from you. Not genetically, but conversationally. A parent who says "I was hopeless at this" has handed over a ready-made excuse. In fact, it would be pretty frustrating to be expected to succeed at something Mum and Dad run away from. A parent who sits down with the worksheet has said something different, without having to say anything.

You don't need to be good at Maths to do that. You need to not signal that being bad at it is the family's natural condition.

Where this leaves you

Practice, at the right level, most days, with a parent who treats it as normal. That's the whole mechanism. It's unglamorous and it works, and it's what BrainBike is built to make possible on a weeknight — five questions, on paper, calibrated to where your child is, so the hard part is just sitting down together.

If that's the kind of practice you want in your house, the free trial will show you it running for real. If you're not there yet, the newsletter is the lower-commitment option.

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