My child says they are bad at maths. What do I do?

There is a moment when a child stops saying "I don't get this" and starts saying "I'm bad at maths". The first is about a question. The second is about them, and it does far more damage, because a child who believes it has a reason to stop trying — and stopping proves it.

Where does it come from?

Rarely from one bad lesson. Usually from a sequence that looks like this.

• Something was missed. A week off, a change of school, or one topic that never quite landed. Place value, number bonds, times tables — the ones everything later assumes.
• The class moved on. It had to. But now every new topic sits on something unfinished, so the new topic is hard for a reason that has nothing to do with the new topic.
• Effort stops producing results. They try, it still goes wrong. This is the dangerous step — the child's own evidence now says that trying does not work.
• They find an explanation. "I'm bad at maths" explains everything they have seen, and it is the only explanation available to a nine-year-old. It is wrong, but it fits.

Why maths and not other subjects?

Because maths stacks more tightly than anything else they learn. A child who misses a week of history has missed a week of history. A child who misses column subtraction has missed something that appears in every piece of arithmetic for the next four years.

It is also the one subject where adults say this about themselves out loud. Nobody announces at a dinner table that they could never read.

How to find the actual gap

You do not need to be good at maths to do this. You need to go backwards until they succeed.

• Take the thing they cannot do and make it smaller. Same question, easier numbers. 48 - 29 becomes 8 - 5. If the small one works, the method is intact and the arithmetic underneath is the problem.
• Keep going back until something works. It may be two years back. That is information, not a verdict. The place where they succeed is where the teaching should start.
• Check the automatic things separately. Times tables and number bonds out of order, not in sequence. A child working these out every time has no attention left for the actual question.
• Watch what they do when they are stuck. Guessing a number, copying the layout from the last question, waiting for a prompt — each one tells you something different about what is missing.

What changes the belief

Not reassurance. A child who has been told for a year that they are clever and keeps getting things wrong learns to distrust the reassurance, not the conclusion.

What changes it is a run of questions they genuinely get right — hard enough to count, easy enough to finish. Three weeks of that does more than any amount of encouragement, because it replaces their evidence rather than arguing with it.

Praise the method rather than the answer. "You checked that" or "you went back when it looked wrong" describes something they control. "You're so clever" describes something they cannot do anything about, and quietly raises the cost of the next mistake.

When it is not about maths

Sometimes the subject is the symptom. If your child also loses track in two-step instructions, reads 36 as 63, or finds it hard to hold a number in mind while doing something else with it, raise that with school before spending a term on drills. Schools see this often and are usually glad to be asked.

And if the phrase arrived suddenly, with no gradual slide, ask what else changed. A move, a friendship, a teacher, something at home. Children name the nearest subject for a feeling that has nothing to do with it.

Do we need a tutor?

If you can find the gap and spend ten minutes most days on it, often not. That is the whole intervention and it costs nothing.

Tutoring is worth paying for when the gap goes back further than you can comfortably teach, or when maths has become a fight at home — because the first thing a tutor changes is that the person asking the questions is not the person they have to live with. If a tutor's first lesson does not find out where the gap starts, you have the wrong tutor.