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Your child brings home a maths test with 38 out of 40. Last term it was 22. Before the pride, a small doubt arrives: did they copy, use an app, or see the paper in advance? The doubt is normal. How you act on it decides whether your child keeps telling you things.
Is a sudden jump in marks usually genuine?
Often, yes. Marks move for ordinary reasons: a new teacher, a friend who explained one chapter, an easier paper, a topic that finally clicked, or a child who simply started doing the homework.
The useful question is not "did they cheat?" but "do they understand this now?" You can answer that without anyone feeling accused.
How do I check without accusing my child?
Lead with interest, not suspicion. In a study of 1,186 Swedish 14-year-olds and their parents, Margaret Kerr and Håkan Stattin found that children's own willingness to tell their parents things explained more of the link between parents' knowledge and good adjustment than parents' tracking and surveillance did (Kerr and Stattin, 2000). An interrogation tonight makes next month's honest conversation less likely.
What should I say during the check?
Pick a calm moment and sit beside your child with the answer sheet.
Start with the good news: "This is a big jump. I'd love to see how you did it."
Point at one question they got right, ideally a middle-difficulty one: "Walk me through this one. What did you do first?"
Ask why, not just what: "Why did you use that formula here and not the other one?"
Change one thing: "If this number were 12 instead of 8, what would change?"
Close warmly whatever happens: "Thanks for showing me. That helped."
You don't need to know the subject. You are listening for reasons, not checking the arithmetic.
What are the signs of real learning?
In a classic study of students learning mechanics from worked examples, Michelene Chi and colleagues found that the stronger students generated many explanations linking each step to a principle and monitored accurately what they did and didn't understand, while weaker students explained less and leaned heavily on the examples (Chi et al., 1989). A later meta-analysis pooled 69 effect sizes from 64 research reports and found that prompting learners to explain improved learning, with an average effect of g = 0.55 (Bisra et al., 2018).
Signs the improvement is real:
They can say why each step follows, in their own words, even if clumsily.
They can handle a small change to the question.
They can name what changed: "I started doing the textbook exercises" or "Sir explained it differently."
Rough work in their notebook matches the answer sheet: same method, similar slips along the way.
They know which parts they are still unsure about.
One frozen answer proves nothing. Nerves, tiredness and a parent watching all make explaining harder.
What should I do if something seems off?
Sometimes the check confirms a doubt: perfect answers but no explanation for any step, or a method the class hasn't been taught. Stay calm and keep it about learning.
Say what you noticed, without labels: "You got these right, but you couldn't explain them. Help me understand."
Make it safe to own up. Children admit things more easily when the first reaction isn't anger.
If an app or solution book did the work, agree on try-first rules rather than a ban. Our guide to spotting AI-written homework lists specific signs.
If you suspect copying in the exam, speak to the class teacher privately and ask what they saw.
Plan the gap, not the punishment: which chapter needs redoing before the next test.
If this sounds familiar, read what to do when a child gets full marks but cannot explain. For a chapter your child can't explain, the Fermi Problem Library has worked problems with a step-by-step solver that explains the reasoning rather than printing an answer, so they can see where their own method breaks.
If pressure around marks is leaving your child anxious, withdrawn or unable to sleep, talk to a school counsellor or doctor, or call Tele MANAS, the government's free mental-health helpline, on 14416.
How should I praise a big improvement?
Praise what they did, not who they are. Across six studies, Claudia Mueller and Carol Dweck found that praising children for intelligence had more negative effects on their motivation than praising effort; after a failure, intelligence-praised children persisted less and enjoyed the work less (Mueller and Dweck, 1998). "You must be a genius" turns the next test into a verdict. "You did the exercises every evening and it shows" gives them something to repeat. More in our guide to praising the process instead of saying 'you're so smart'.
