Why lectures are hard to note
Taking notes from a talk asks you to do several things at once: listen, understand, decide what matters, and write, all at the speaker’s pace. You cannot reread what was said, and the speaker may not signal what is important. This heavy load on working memory explains why many students end up either writing everything and understanding little, or listening intently and having almost nothing to study from.
Recorded lessons relieve some of that pressure, since you can pause and rewind, but they bring their own problems: it is tempting to watch passively, or to pause so often that a twenty-minute video takes an hour.
Before the session
A small amount of preparation makes a big difference.
- Look at the topic in advance. If a syllabus, slides or reading list is available, skim it. Knowing the basic vocabulary means you spend less effort decoding and more on understanding.
- Review your last notes. A two-minute look reminds you where the previous session ended.
- Set up your page or file. Write the date, course and topic at the top. Leave a margin or a separate area for questions and later additions.
- Prepare your tools. Charge your device, bring a spare pen, and silence notifications. Avoiding study distractions is far easier before the session than during it.
- Decide what you want from it. One or two questions, such as “How does this connect to last week?”, give your listening a focus.
During a live lecture
Listen for structure
Speakers give clues about what matters. Listen for phrases like “the main point is”, “there are three reasons”, “this will be on the assessment”, “in contrast”, or “to sum up”. Repetition and a change in tone or pace can also signal importance. Many lectures start with an overview or a list of objectives; copy it down, since it gives a skeleton for the rest.
Write less, think more
You do not need full sentences. Use:
- keywords and short phrases
- abbreviations you will remember (w/ for with, → for leads to, ≠ for not equal)
- numbers or letters for lists
- symbols such as a star for an important point or a question mark for something unclear
Paraphrase when you can. Putting an idea into your own words while the speaker moves on is a small act of understanding. Quote only when the exact wording matters, like a definition or formula.
Use a format that suits the speaker
If the lecture is well organized, an outline works well. If it jumps around, a looser layout with space to link ideas may be easier. A split-page format such as the Cornell format keeps room for questions. The overview of note-taking methods describes the main options.
Mark gaps without panicking
If you miss something, leave a blank space or write a short marker and keep going. Trying to catch up while the speaker continues causes you to miss more. After the session, fill in the gap from slides, a classmate’s notes or a recording, if available.
Ask questions
If something is unclear and there is a chance to ask, do. Writing your question in the margin first can help you phrase it. Learning to ask good questions in class and online is a skill in itself, and a clear question often helps others too.
Slides help, but they are not notes
If slides are provided, you do not need to copy them. Use them as a reference point and write what the slides do not say: explanations, examples, asides and connections. Annotating a printed or digital copy of the slides with your own comments is an efficient approach.
Notes from recorded lessons and videos
Video has some advantages, but you need a plan.
- Watch actively. Decide beforehand what you want to learn. A video watched passively is easy to forget.
- Use pause deliberately. Stop at natural breaks, at the end of a section, rather than after every sentence. Summarize the last few minutes in your own words, then continue.
- Adjust playback speed with care. A slightly faster speed can save time for familiar material, but slow down or rewind for new, difficult ideas.
- Record timestamps. Write the time next to key points, so you can find them again, or mark questions to revisit.
- Keep video and notes side by side if you can, or use a split screen. Switching between windows interrupts your focus.
- Do not let the video run while you do something else. Multitasking tends to reduce comprehension.
Self-paced video courses give you flexibility, but they also require discipline; the comparison of self-paced courses and scheduled ones discusses that tradeoff.
Handwritten or typed
For live lectures, either can work. Handwriting slows you down, which tends to encourage summarizing. Typing is faster and easier to organize but tempts you to transcribe. See the comparison of handwritten notes and typed notes for details. For video, typing is often convenient because you can pause and edit as you go.
After the session
Notes taken in a hurry are rough. A short follow-up turns them into something you can learn from.
- Review within a day. Read through while the lecture is fresh. Fix abbreviations you will not remember and fill in gaps.
- Add a summary. Write a few sentences capturing the main points.
- Write questions. Convert key points to questions you could use for active recall later.
- Mark what to follow up. List terms or ideas you still do not understand, then look them up or ask.
- Revisit later. Short reviews over the following weeks, in line with spaced repetition, help the material stay available.
Common mistakes
- Writing everything down, with no time to think
- Relying on a recording and never taking notes
- Never looking at the notes again
- Using an elaborate system that is too slow to keep up
Start with one small change, such as previewing the topic or writing a three-line summary after each session, and see whether it helps. Different speakers and subjects call for different approaches, and no single method will suit every situation.