Most learners take notes the same way: they copy down as much as possible, as fast as possible, and never look at the notes again. That feels productive during a lesson, but it does little for memory, because copying is not thinking. Good notes are different. They are short, they are written in your own words, and they are made to be reviewed. This guide is for anyone taking online courses who wants notes that actually help them remember, rather than a pile of pages that gathers dust.
The decision this post helps you make is how to take notes, and how to use them afterwards. You will learn why writing in your own words matters, which note methods suit different kinds of lessons, how to take notes during a video without pausing every minute, and how to review notes so the material stays in memory. The methods are simple on purpose. A note system you will actually use beats a clever one you abandon after a week.
Write in Your Own Words, Not the Teachers
The single most useful rule of note taking is to write in your own words. When you copy a sentence exactly, your brain can do it without understanding it. When you restate an idea briefly, you have to understand it first, and that act of understanding is what builds memory. After each short section of a lesson, pause and write one or two sentences that explain the idea as you would explain it to a friend. If you cannot write it simply, you have not understood it yet, and that is useful information: go back and watch the section again before you move on.
Keep notes short. A page of notes for an hour of lessons is usually enough, and often more than enough. Focus on ideas, definitions in your own words, examples, and connections to things you already know. Leave out details you can look up later, and leave out anything the course already provides as a handout or a transcript. Your notes should contain the thinking, not the raw material. A short note you understand is worth far more than a long note you cannot make sense of a week later.
Pick a Note Method That Fits the Lesson
Different lessons need different notes, and one method does not fit everything. The Cornell method works well for most courses: divide the page into a wide notes column, a narrow cue column on the left, and a summary strip at the bottom. Take notes in the wide column during the lesson, write questions or key words in the cue column afterwards, and write a two-sentence summary at the bottom. The cue column then becomes a self-test tool, because you can cover the notes and try to answer the questions from memory.
For lessons that are mostly ideas and connections, a mind map or a simple outline works better. Start with the main idea in the centre or at the top, and branch out to the smaller ideas, with short labels and arrows showing how they connect. For practical lessons, such as coding, data, or design, keep your notes next to your work: short comments on what you did, what went wrong, and what fixed it. That kind of note is far more useful later than a transcript of the lesson, because it records the experience of doing the work. Our guide to studying online without losing focus explains how to structure sessions so note taking fits naturally into them.
Take Notes During Video Without Losing the Thread
Video lessons create a specific problem: if you pause every minute to write, the lesson takes forever, and if you never pause, you end up with nothing. The fix is to watch in short stretches. Watch for five to ten minutes without writing, then pause and write a short summary of what you just saw. This gives you the full idea before you try to capture it, and it keeps the lesson moving. If a lesson is dense, slow the video down slightly rather than pausing constantly. If it is easy, speed it up and spend the saved time on the summary.
Use symbols and shortcuts to keep your writing fast. Arrows for causes and results, question marks for things you do not understand yet, stars for ideas that matter for an exam or a project, and short abbreviations for words you write often. Do not worry about neatness while you are learning. A tidy note that took twice as long to write is not better than a rough note that captured the idea. You can always tidy the important notes later, during review, and that tidying is itself a useful second pass through the material.
Review Your Notes So They Actually Work
Notes only help memory if you review them, and review works best when it is spaced out. Read your notes the same day, briefly, to fix them in your mind and fill any gaps while the lesson is still fresh. Then review them again after a few days, then after a week, then after a month. Each review should be active: cover the notes and try to recall the ideas from the cue words or questions, then check what you missed. That effort of recall is what strengthens memory. Reading notes passively, without trying to recall, gives a feeling of familiarity that fades quickly.
Keep your review short and regular. Ten minutes of active review beats an hour of rereading the night before an exam or a deadline. When you review, update your notes: cross out what you now know well, add connections to new lessons, and rewrite anything that no longer makes sense. Notes that change as you learn are alive, and they become a personal summary of the whole course by the end. Our guide to spaced repetition for online learners explains the science behind this review schedule and how to set it up simply.
Check Before You Buy a Note Taking System
Before you pay for a note taking app, a template pack, or a course about note taking, check whether the basics are in place. Do you write in your own words, keep notes short, and review them at least once after the lesson. If any of those is missing, fix that first, because no app solves a missing habit. Most learners do well with a simple notebook or a plain document, and the best tool is the one you already have open during your lessons.
Be careful with systems that take more time to organise than the study itself. If you spend longer tagging, linking, and formatting notes than learning the material, the system is working against you. A good system is one you barely notice: notes go in quickly, you can find them again, and review takes minutes. Keep it simple, keep it in your own words, and keep reviewing. That is the whole method, and it is enough to make notes that genuinely help you remember.
Conclusion
Notes help you remember when they are short, written in your own words, and reviewed actively. Pick a method that fits the lesson, watch video in short stretches and summarise after each one, and review your notes the same day, then after a few days, a week, and a month. Keep the system simple enough to use every day, and let your notes grow into a personal summary of the course. Done that way, note taking stops being a chore and becomes one of the most useful parts of learning.
Should I take notes by hand or on a computer?
Both work, and the best choice is the one you will use consistently. Handwriting often helps memory because it forces you to summarise, while typing is faster and easier to search. Choose the method that fits your lessons and stick with it.
How much should I write in my notes?
Keep notes short. About one page for an hour of lessons is usually enough. Focus on ideas in your own words, examples, and connections to what you already know. Leave out details you can look up later and anything the course already provides.
How often should I review my notes?
Review briefly the same day, then again after a few days, after a week, and after a month. Each review should be active: cover the notes and try to recall the ideas before you check them. Short regular reviews beat long rereading before a deadline.
What is the Cornell note taking method?
Divide the page into a wide notes column, a narrow cue column, and a summary strip at the bottom. Take notes in the wide column, add questions or key words in the cue column afterwards, and write a two-sentence summary. The cue column then works as a self-test tool.