Every exam season, teachers across Tamil Nadu lose a weekend to marking answer sheets. Vendors are now pitching "AI marking" as the fix. Before your school signs up for one, it helps to know exactly what a good tool does, and what it must never be allowed to do on its own.
What it should never do
- Give a final mark without a teacher looking at it. A model can read handwriting and compare an answer to a key, but judgement on partial credit stays with the teacher.
- Replace a teacher's sense of a student's progress over the year. It should only speed up the reading, not the understanding.
What a good tool does
- Reads ordinary scanned sheets from a feeder scanner your office already owns — no special paper.
- Suggests a mark with a one-line reason, so the teacher can agree or change it in seconds rather than re-marking from scratch.
- Puts the uncertain answers at the top of the pile, so the teacher's time goes where it is actually needed.
- Groups students by the mistake they made, not just the score, so re-teaching is targeted.
- Produces report cards in Tamil as well as English, so parents genuinely understand them.
Questions to ask any vendor
- Does a teacher confirm every mark, or only a sample?
- Can it read answers that switch between Tamil and English mid-sentence, common in Classes 6 to 10?
- Where are scanned sheets stored after marking, and for how long?
- Realistically, how long does a set of 40 scripts take a teacher — minutes, or a full evening?
What it costs you
The real cost is not the subscription fee. It is a change in habit: someone in the office has to scan sheets consistently, and teachers need to trust a suggested mark enough to check it quickly instead of marking from zero. Schools that get the scanning habit right free up a weekend every term. Schools that skip it end up doing the work twice. It also helps to run one subject as a trial before rolling the tool out across every class, so teachers get comfortable confirming marks before the busiest exam season arrives.
How we can help
Valarchi is built for Samacheer Kalvi schools: teachers confirm every mark, principals see which section slipped within the same week, and parents get report cards in plain Tamil and English. See it on your own scanned sheets — talk to us.
