What each format is good for
Full lectures go slowly, build the concept from the ground, and work well when you are meeting a chapter for the first time or your basics are weak. Their weakness is time: a long playlist can eat weeks and leave no time to practise.
One-shots compress a chapter into a few hours. They work well for revision, or for a chapter you already studied once. For a brand-new chapter with weak basics, they move too fast, and many students nod along but cannot solve questions afterwards.
A simple way to choose
- Weak basics or new chapter: full lecture or the chapter notes, then practise.
- Studied it before, need revision: one-shot, then a chapterwise test.
- Exam is close: one-shot or notes only for the chapters where tests show weak scores.
- Not sure: take a chapterwise test first. A strong score means revise; a weak score means relearn.
The part that matters more: what you do after
Watching is not learning. After any lecture, close the video and attempt questions from that chapter. If you cannot solve them, go back to only the part you missed instead of replaying the whole video. Most of the learning happens in that retrieval step.
Notes can be faster than video for many students: you can skim what you know and slow down on what you do not. Use video for the ideas you cannot get from reading.
If you are behind: lean on practice, not playlists
Backlog usually grows when lectures take all the time. Cap video time, and spend at least as long practising as watching. See the backlog guide for a step-by-step recovery plan.