How to pinpoint where your child is struggling in Maths

Why does a practice score not show where the problem is?

A single percentage averages every question on the paper together, so a strong topic and a weak one cancel each other out. Two children who both score 65% can need completely different help, and the total cannot tell you which of them you are looking at.

The useful information is in the questions that were missed, and in what they have in common. That is a sorting job, and it takes about half an hour with a marked paper.

What do you need before you start?

You need one full, unseen SEAG-style paper, sat under timed conditions in a quiet room. Nothing else. The aim is an honest picture of what your child can do alone, so a paper they have already seen, or one completed with help, hides the very gaps you are trying to find.

An unseen paper. A repeated paper measures memory rather than Maths.
Timed conditions. They let you tell "did not know" apart from "ran out of time".
A hands-off adult. Explaining or hinting during the paper defeats the purpose.

How do you turn a marked paper into a list of weak topics?

Mark the paper, put the score to one side, then list every question that was wrong or skipped and sort each into a Maths strand. Count how many fall in each. Within seconds you will see whether the errors are scattered or concentrated, and concentration is what you are looking for.

Mark it, then ignore the total. The score is the least useful number on the page.
List every wrong or skipped question. Keep skipped ones separate: they point to timing, not knowledge.
Sort each into a strand: Number, Measures, Shape and Space, or Handling Data. Make a tally with a highlighter or a simple table.
Go one level down in the biggest strand. If most misses are Number, are they fractions, decimals, percentages or ratio?

Questions do not arrive labelled, so some will need a judgement call. Do not worry about getting every one exactly right; a pattern only has to be roughly right to be useful.

How can you tell a gap in understanding from a slip?

Ask your child to talk you through one wrong answer aloud, without prompting. If they cannot begin, it is a gap in understanding. If they spot the error and get it right on a second go, it was a slip such as a misread question or a careless calculation. The two need different fixes.

A gap means the method is not secure. Teach it again, then practise it a little at a time.
A slip means the method is fine. The fix is a checking habit: read the question twice, underline what it asks for, and check the units.
Skipped or rushed questions at the end are a pacing problem. Our exam technique guide covers that.

It is also worth asking whether your child is calmer at home than under the clock. Nerves can look like a knowledge gap on paper, but they need a different kind of help.

What should you practise once you know the weak topic?

Short, focused sessions on that one strand or sub-topic for a week or two, rather than another full paper. Fifteen to twenty minutes on fractions usually helps a fractions problem more than a whole paper that mostly tests things your child already does well.

Keep it small and specific. TransferNI's topic-by-topic Maths practice and progress dashboard do the sorting for you, showing accuracy by topic and sub-topic, but a highlighter and a tally sheet work perfectly well too.

Keep a little practice on the topics your child is already good at. It protects confidence, and it stops those topics slipping while attention is elsewhere.

How do you know it has worked?

Sit a new paper after a week or two and repeat the same sorting. If the tally for the weak strand has shrunk, the practice has worked, and the next largest strand becomes the next target. Judge the trend across several papers, never the result of a single one.

Remember that a practice percentage is not a prediction of the real result; our guide to what a standardised score means explains why. What a practice paper can show is which topics are improving.

Common questions

How many practice papers do I need before I can see a pattern?

One paper gives a first picture and two or three give a more reliable one. A single paper can be skewed by a bad day, so look for the same strand appearing across more than one paper before you build a plan around it.

Should I only practise my child's weak topics?

No. Keep some practice on strong topics as well. It protects confidence and stops those topics slipping while attention is elsewhere. A sensible split is most of the time on the weak area, with a shorter warm-up on something your child already does well.

What if my child's Maths mistakes are spread across every topic?

Scattered errors usually point to carelessness, misreading or timing rather than a gap in knowledge. Look at how many questions were skipped or rushed at the end, and whether answers were checked. Reading each question twice and pacing the paper will help more than drilling any one topic.