I sat through it and understood none of it

You sat through the lecture and understood almost none of it

Somewhere around minute forty the derivation moved faster than your pen and you spent the rest of the hour copying symbols. The notes you have are not wrong, they are just not notes — they are a transcript of something you did not follow.

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What this will not do

This is not a substitute for going. It works from what you captured, so a lecture you skipped entirely gives it very little to work with.

How it actually goes

  1. 1

    Upload the recording or your notes

    Audio from your phone, or a photo of the pages you wrote. Either gives it the shape of what was covered.

  2. 2

    Get it back as structured notes

    Organised by topic rather than by the order it happened in, with the steps that got skipped written out properly.

  3. 3

    Ask about the exact moment you lost it

    This is the part a summary cannot do. Point at the step, say what confused you, and have it drawn out on the whiteboard at the speed a person explains something.

  4. 4

    Turn it into practice and a plan

    Generate quiz questions on the same material to find out whether it actually stuck, and save a study plan for what to revisit before the exam.

Questions people in this situation ask

Is recording my lecture allowed?

That depends on your institution and sometimes on the individual lecturer, and it is your responsibility to check. If recording is not permitted, upload your written notes instead — the rest of the flow is identical.

How long a recording can I upload?

A full-length lecture is fine. Audio quality matters more than length — a phone on the desk in front of you works, a phone in a bag does not.