Tukuk-OSNotes that ask questions back
Most lecture notes are a transcript with better handwriting: written once, read never. The layouts that survive scrutiny all fix the same defect — they make the page do something after class ends, using nothing but its shape.
Cornell notes split the page three ways: a wide right column for capturing during the lecture, a narrow left cue column for questions written right after, and a summary box at the bottom filled in closed-book the same evening. The trick is which column you cover. After class you hide the notes with your hand and answer your own cues out loud — self-testing with the answer sheet built into the page, no extra materials, no app. Walter Pauk's layout at Cornell has outlived fifty years of study fads for exactly that reason: the review is not an add-on step, it is the geometry. A free Cornell notes generator prints the scaffolding for any topic — ruled note lines, seeded cue prompts like What would an exam ask?, and the summary footer — so the only thing left is the discipline of filling the left column within a day.
Mind maps attack the other half of the problem: notes capture fine but do not show structure. The format is radial — one central topic, four to six branches, three or four leaves each — and its value is not the drawing but the redraw: read the map, close it, rebuild it on blank paper. The leaves your drawing is missing are the exact list to revise tomorrow, in a format small enough to be a memory at all. That is also why maps balloon into uselessness past six branches: beyond that the page is a poster, not something you can hold. The mind map builder enforces the size — one line per branch, Causes | leaf | leaf — and prints a clean map to redraw against.
Compressing before you capture
Both layouts assume you already know what matters in the source, and that is where summarising quietly fails. No AI required — one honest trick carries surprisingly far: the words a passage repeats are what it is about, and the sentences stacked with them are its load-bearing walls. Paste a chapter's worth of notes into a text summarizer and it scores sentences by word frequency, keeps the best three in their original order, and shows how many words you just saved. Treat the output as scaffolding, never as the summary — the durable habit is what follows it: read the picked sentences, close them, and say the passage back in your own words. That rewrite is where the studying happens; the machine only chose the walls.
Choosing between the two
They are not rivals; they sit at different points in a week. Cornell is a capture format — it belongs in the lecture and the evening after, one page per session. The mind map is a retrieval format — it belongs at the end of a chapter, built from the notes themselves, then redrawn from memory the day before the test. Summarising is the bridge between them: compress the chapter to its three sentences, and those sentences usually name the branches.
A student who fills the cue column the same evening and redraws the chapter map before the exam has done, in maybe forty minutes of layout work, the two things re-reading never delivers: production practice on the details, and structure on the whole. The page is already asking you questions. Answering them is the studying.