On this page
A wrong mark feels urgent, but how you handle it teaches your child more than the marks do: to read their own work closely, speak up calmly and accept a decision they did not choose.
Why check the answer sheet together first?
Before anyone writes to the school, sit down with your child, the marked paper and the question paper.
The marked paper is feedback before it is a score. In a research review, John Hattie and Helen Timperley concluded that feedback is among the major influences on learning, but that "the type of feedback and the way it is given can be differentially effective" (Review of Educational Research, 2007).
So let your child hold the pen and explain each red mark in their own words. Often they will spot why marks were cut.
Is it a counting mistake or a judgement call?
CBSE's notice on post-result facilities for its 2026 Class XII supplementary exams gives a useful way to sort problems. It separates verification of marks, which checks for unmarked questions and adding-up or copying errors, from re-evaluation, which compares an answer with the marking scheme (CBSE notice, 27 August 2026). The same split works for any school test.
Counting slips, usually quick to fix:
A question or sub-part was not marked at all.
The step marks in the margin do not add up to the mark written for that question.
A question's mark was copied wrongly onto the cover page or total box.
The grand total does not match the mark on the report card or school portal.
Judgement calls, worth raising only with a clear reason:
The answer matches the answer key or marking scheme, but marks were not given.
A valid alternative method reached the right answer and got nothing.
"The teacher was strict" fits neither list; it is a lesson, not a query.
Here is an example. Ananya, in Class 9, gets her science test back marked 31 out of 40. At home she adds up the margin marks and gets 32. Question 6 shows 1 + 1 + 1 in the margin, but 2 on the cover page. That is a counting slip, and it is worth one polite note.
She also lost marks on question 9 for a definition missing a key term. That is not the teacher's error; it goes in her revision notebook.
How do you ask the teacher about a wrong mark?
For a teenager, the student is usually the right person to raise it, with you in the background. Keep it short, specific and private: a diary note, portal message or word after class, never the parents' WhatsApp group.
A script your child can use:
"Good morning, Ma'am. Thank you for returning our science test. When I added up my marks, question 6 shows 1 + 1 + 1 in the margin but 2 on the cover page, so I think my total may be 32, not 31. Could you please check when you have time? I have also understood where I lost marks in question 9."
If you write as the parent, use the same shape:
Thank the teacher.
Name the question.
Say exactly what you saw.
Ask them to check.
Close warmly.
Avoid words like "unfair" or "careless". Our guide on how to teach your teen to email a teacher has more templates, and how to build a good relationship with your child's teacher explains why tone matters.
What if the teacher says no?
Accept the decision, especially on a judgement call. Ask one follow-up: "What would a full-mark answer have looked like?" That turns a disagreement into a model answer.
Go to the class coordinator only if a clear counting slip is ignored. Then let it go, and tell your child you are proud of how they handled it. If the result upsets them, our piece on what to say when your child cries over low marks can help. If distress lasts or starts to affect sleep or eating, talk to the school counsellor or call Tele MANAS, the free 24x7 national mental-health helpline, on 14416.
Where the lost marks came from a wrong method rather than a marking slip, the Fermi Problem Library has worked problems with a step-by-step solver that explains the reasoning rather than printing an answer, so your child can see where their working went off track.
How is a board exam different?
For CBSE board exams, the post-result portal and the Class XII supplementary notice set out the order: first apply for a scanned copy of the evaluated answer book, then for verification, re-evaluation or both. Applications are online only, and none are accepted after the schedule closes. Re-evaluation covers the theory portion and a full question, not part of one, and you must give your reasons against the published marking scheme.
In CBSE v. Aditya Bandopadhyay (2011), the Supreme Court held that evaluated answer books are not exempt from disclosure under the RTI Act, as an SCC Online case report notes. Dates and fees change yearly, so read the current notice.
