Cornell notes, done right

• Notes column (right, about two thirds of the page): what you write during the lecture or reading, in your own words and abbreviations.
• Cue column (left, a narrow strip): questions and keywords, written afterwards, not during.
• Summary strip (bottom, a few lines): the whole page compressed into two or three sentences.

Write only in the notes column, and write less than you want to. Sentences are the enemy: use fragments, arrows, and abbreviations, and leave a blank line whenever the topic shifts. If you try to capture everything, you transcribe instead of thinking, and transcription is the one note-taking style research consistently finds useless.

This is the step that makes the method work, and the one everyone skips. Cover the notes column and fill in the cue column with questions the notes answer, as if you were writing an exam for a classmate. Then write the summary strip from memory, checking afterwards. This single recall pass does more for the material than two rereads — see active recall for why.

To review, cover the notes and answer the cues out loud or on paper. Anything you miss gets a mark, and marked cues are the only ones you revisit next time. That is the Leitner idea applied to a notebook: attention goes to what you do not know yet.

The cue column is already a list of card fronts, so the conversion is nearly free. Upload your notes to notes to flashcards and the questions become a deck with explanations, ready for spaced reviews. One page of notes typically yields five to ten good cards; follow the card-writing rules when you trim them.

• Writing cues as keywords instead of questions. Keywords invite recognition; questions force recall.
• Filling the cue column during the lecture. Split attention means neither column gets done well.
• Skipping the summary. Compressing a page into three sentences is where understanding gets tested.
• Reviewing by rereading the notes column. The method only pays off when the notes stay covered.