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Mistake analysis
Short answer
BrainStride tags every wrong answer as a concept gap, a silly error or time pressure, and that tag chooses your next practice set. Marks rarely leak from hard chapters. They leak from four or five specific errors repeated for two years, and naming the error is what lets tomorrow’s ninety minutes be aimed at it.
The loop
Every question carries its chapter, its concept and the error it usually catches, in practice sets and diagnostics alike.
Concept gap, silly error or time pressure. One wrong answer, one plain label — not a percentage you have to interpret.
The daily plan is re-cut every night around the tags you collected that day, so the set you get tomorrow answers the mistake you made today.
Because the fix is different in each case, and the score alone cannot tell you which one you need. Two students lose fourteen marks in Rotational Motion. One has never been comfortable with the parallel axis theorem; the other knows it and keeps misreading the axis in the diagram. Told only “revise Rotational Motion”, the second student re-reads a chapter they already know and loses the same fourteen marks next month.
They drive the plan. BrainStride is an AI tutor for JEE, NEET and Olympiad preparation that keeps one record across practice, mocks and doubts, so the balance of your tags decides what tomorrow’s ninety minutes look like. The pattern also appears in your weekly report, next to chapter mastery and the predicted rank band, and in the Sunday email your parents get, so the conversation at dinner can be about something specific.
Yes. Mistakes from a mock get the same tags as daily practice, and the analysis is the part most students skip. A mock you do not analyse is an afternoon spent measuring the problem rather than fixing it.
Tell it. A question you rushed and a question you never understood can look similar from the outside, and you are the one who knows which it was. Corrections feed back into the record, and where a solution itself looks wrong, one tap sends it to a subject mentor under our editorial policy.
Mistake analysis is part of Focus at ₹899/month and RankLab, alongside the nightly daily plan, spaced revision and the predicted rank band after every mock. The free Starter plan still shows your weak-chapter map with the mistake pattern named for each chapter. Plans and pricing compares them line by line.
An error notebook kept honestly for two years beats any software. Very few people keep one honestly for two weeks.
| Item | BrainStride mistake analysis | Your own error notebook | Coaching test report |
|---|---|---|---|
| Recorded for every question | Yes, automatically | Only what you write down | Marks and rank only |
| Why the mark was lost | Concept, silly error or time | Whatever you noted | Rarely |
| Covers practice as well as tests | Yes | If you keep it up | Tests only |
| Changes what you do next | Chooses the next practice set | You decide | You decide |
| Your own words about the mistake | No | Yes — its biggest strength | No |
| Survives a busy fortnight | Yes | Usually not | Yes |
If your score moves around more than your preparation does, this is the feature to read twice.
Take the free diagnosticMistake analysis means classifying why each mark was lost, not only which chapter it came from. BrainStride tags every wrong answer as a concept gap, a silly error or time pressure, and that tag chooses the next practice set — explanation and easier questions, accuracy work, or timed sets on the same chapter.
Start by separating them from concept gaps, because the two need opposite fixes. In BrainStride, a wrong answer tagged as a silly error brings accuracy work on that same chapter rather than more theory. Seeing how many marks a fortnight go to dropped signs or misread units is usually what makes students take the habit seriously.
Yes. Mock mistakes get the same concept gap, silly error and time pressure tags used in daily practice. Those tags feed the same record, so the week after a mock is planned around the mistakes the mock exposed rather than around the syllabus order.
Yes. You know whether you rushed a question or never understood it, and BrainStride takes the correction into the record so later sets are planned on the truth. If the solution itself looks wrong, one tap sends it to a subject mentor, who fixes it or explains why it stands within 48 hours.
The free Starter plan shows your weak-chapter map with the mistake pattern named for each chapter. Full mistake analysis — tags on every attempt, feeding the nightly plan — is part of Focus at ₹899 a month, together with the daily plan, spaced revision, unlimited doubts and the predicted rank band after every mock.
Usually within the first week of steady practice, because tags accumulate on every attempt rather than only on tests. The weekly report is the place to read them: it shows chapter mastery, the balance of your three tags and the rank band together, which is enough to tell whether a leak is closing or just moving.
The 20-minute diagnostic names them. After that, every wrong answer is tagged as you go.