Which topics is my child weak in? A Maths diagnostic checklist for P4–P6 parents

A Maths grade is a smoke alarm. It tells you something is burning; it doesn't tell you where. "68 at the end of Primary 5" could mean shaky fractions, slow times tables finally catching up, careless slips under time pressure, or one bad afternoon — and each of those has a different fix.

The difference between effective help and expensive noise is specificity. Before adding tuition hours or another assessment book, it's worth an hour of honest diagnosis.

The checklist

1. Get the last two papers out. Not the scores — the scripts. Sort every lost mark into one of three buckets: didn't know the concept, knew it but made an arithmetic slip, and ran out of time / didn't attempt. Ten minutes of sorting usually collapses "weak in Maths" into one or two named problems.

2. Separate concept gaps from fluency gaps. A child who cannot start a fraction question has a concept gap. A child who starts correctly and fumbles 7 × 8 has a fluency gap. Concept gaps need re-teaching; fluency gaps need short daily reps. Mixing up the two wastes months.

3. Check the topic, then check its feeder. Weakness in a topic is often inherited. Struggling with P6 Ratio? Test P6 Fractions first. Percentage wobbly? Look at decimals and fractions underneath it. The topic pages on this site list what feeds into what.

4. Distinguish "never learned" from "faded". A topic your child aced in Term 1 may quietly be gone by Term 3 — that's not a learning failure, it's how memory works without review. The test is simple: give two questions from a topic that was mastered months ago, cold, no warm-up. If they've faded, the fix is spaced review, not re-teaching from scratch (more on that in our spaced-repetition guide).

5. Watch them solve one problem, silently. Pick a mid-difficulty word problem and say nothing while they work. Where does the pencil stop? At the reading? At the model? At the arithmetic? The stall point is the diagnosis.

Doing this systematically

The manual version above works — its weakness is coverage and honesty. Two papers sample a handful of concepts out of the dozens in each level's syllabus, and parents (understandably) go easier on wobbly answers than an exam would.

This is the part Test Paper automates: a free 15-minute check-up samples across every topic in your child's level, builds a topic-by-topic mastery map, and — the part we think matters most — re-tests fixed topics days later so you know the repair held. You get the specific list this guide is about, without the detective work.