What is the best way to summarize notes?
Principles of a good summary
A good summary reduces a page of notes to a few lines without losing the core meaning. It should be in your own words, which forces understanding. Focus on main arguments, supporting evidence, and conclusions—skip examples unless they illustrate a key point.
Aim for 10–20% of the original length. For a one-hour lecture, a summary of 5–10 bullet points is usually enough. If you can't summarize it, you probably don't understand it yet.
- Write in your own words
- Keep it to key ideas and conclusions
- Use bullet points or a short paragraph
- Include connections to other topics
- Date and title the summary for easy retrieval
Methods for summarizing
Try the 'one-sentence summary' technique: condense the entire note into a single sentence. Then expand to three to five bullets. Another method is the Cornell system, where you write a summary at the bottom of each page.
For digital notes, you can use tags or a 'summary' field. Some apps have AI summarization, but always review and edit the output—it may miss nuance or introduce errors.
Common mistakes
- Copying sentences directly instead of paraphrasing, which skips the learning benefit.
- Making the summary too long—if it's as long as the original, it's not a summary.
- Summarizing before you understand the material, leading to a shallow or inaccurate version.
