How to revise your notes so they stick

Everyone revises a little differently, but for most people the best way to revise your notes is to test yourself on them instead of reading them again. Turn each page into questions, answer them from memory, check what you missed, then come back to the same topic a few days later. Finish each topic with exam-style questions marked against the mark scheme. The method works for most written exams, from GCSE mocks to A-Level finals.

How should you revise your notes?

Use your notes as an answer key. The useful work happens when you try to pull the information out of your head and then check yourself against what you wrote.

That's what active revision means: anything that makes you recall or use what you've learned, such as answering questions, blurting or using flashcards. Passive revision is reading, highlighting or copying out, where the answer is in front of you the whole time. Here's how the common methods compare.

Source: the 2013 review by Dunlosky et al., Psychological Science in the Public Interest. The review doesn't name blurting or teaching others. Blurting counts as practice testing, since you're recalling from memory. Explaining a topic without your notes also makes you recall it, and a 2018 study by Koh and colleagues suggests that's where much of the benefit of teaching comes from. Last checked: 10 November 2026.

Why rereading your notes doesn't work on its own

In 2013, a team of psychologists led by John Dunlosky published a review of the research on ten common study techniques. They rated rereading and highlighting as low utility. Only two techniques were rated high: practice testing, and distributed practice, which means spreading your revision out over time.

A well-known experiment helps explain why. In a 2006 study, university students read two short prose passages, then reread one and wrote down what they could remember of the other. On a test five minutes later, they recalled slightly more of the passage they had reread. Two days later, and again a week later, they recalled more of the passage they had tested themselves on.

Rereading feels productive because the page becomes familiar, and familiar is easy to mistake for known. In a second experiment in the same paper, students who read a passage four times were the most confident they'd remember it. A week later, they remembered the least: 40%, against 61% for students who read it once and then tested themselves three times.

Rereading still has a use. A quick read before you start testing yourself reminds you what a topic covers.

How to turn notes into self-testing questions

Work through one topic at a time:

1. Next to each section of your notes, write a question in the margin, such as "What does an enzyme do?" or "What is the formula for the area of a circle?"
2. Cover the notes, read only the questions and answer each one out loud or on paper.
3. Uncover the notes and tick the ones you got right.
4. Make flashcards only for the questions you got wrong or half right.
5. Come back to the same questions a few days later, then again after a longer gap.
6. Finish the topic with exam-style questions, marked against the mark scheme.

Making flashcards for everything takes time you could spend testing yourself, so keep them for the gaps. Once your margin questions are written, you can reuse them every time you come back to a topic.

What is the blurting revision method?

Blurting is a quick way to test yourself on a whole topic. It suits subjects with a lot of content, such as the sciences, history, geography and religious studies.

1. Pick one topic, small enough to fit on a page.
2. Close your notes and spend 5 to 10 minutes writing down everything you can remember, in any order.
3. Open your notes and check, adding anything you missed in a different coloured pen.
4. Turn the missing points into questions or flashcards.
5. Blurt the same topic again a few days later and see whether there's less coloured pen.

The second colour is the most useful part, because it shows you what to work on next. For maths, you'll learn more from working through problems from scratch than from writing out what you remember about a method.

What is the 2/3/5/7 revision rule?

The 2/3/5/7 rule is a spacing schedule. You learn a topic on day 1, then review it on days 2, 3, 5 and 7, usually by testing yourself.

We haven't found a study that tests those exact days. What the research does support is spacing in general. A 2006 review of 317 experiments by Nicholas Cepeda and colleagues found that spreading study sessions out led to better memory than cramming them together. It also found that the best gap between sessions gets longer the longer you need to remember something.

So use 2/3/5/7 as a starting point if it helps you plan. For exams that are months away, keep going after day 7 with longer gaps, such as two weeks and then a month. Our GCSE revision timetable guide can help you keep track of them.

How to check your revision with exam-style questions

Remembering a fact is one skill. Using it to answer an exam question is another, and that's where the marks are. Exam questions also show you how your exam board phrases things, which is hard to pick up from notes.

1. Choose questions on the topic you've just revised, from a past paper or your exam board's sample papers.
2. Answer them in timed conditions, with your notes closed.
3. Mark them with the mark scheme, noticing the wording examiners look for.
4. Write down why you lost each mark.
5. Redo the questions you got wrong a week later.

You'll find papers and mark schemes by subject and exam board in our past papers directory. Marking longer answers yourself is harder, because it's easy to give yourself credit for what you meant to say. Medly's free plan includes 5 marked questions, 20 AI tutor messages and 1 uploaded paper a day, with no card needed.

Best revision tips for any exam

These work alongside the method above, whatever you're revising for.

• Start with the topics you're least sure of. Rating each one red, amber or green, as in our two-week mock revision plan, shows you where to begin.
• Mix topics within a session once you know the basics. Dunlosky's review rated interleaved practice, which means switching between different kinds of problem, as moderate utility.
• Ask yourself why something is true, and explain how a new idea links to what you already know, or talk through each step as you solve a problem. The same review rated both of these as moderate utility.
• Plan each session, check how it's going, then look back at what worked. The Education Endowment Foundation's guidance on metacognition recommends teaching pupils to plan, monitor and evaluate their learning in this way.
• Protect your sleep. According to the NHS exam stress advice, most teenagers need 8 to 10 hours a night, and cramming all night before an exam is usually a bad idea.

Answering questions in every session ties all of this together. In a randomised controlled trial in GCSE science, students using Medly for 30 minutes a week for four weeks scored 22% higher on the post-test than students revising in their usual way, adjusted for where they started. The comparison students spent the same time on the same topics, using resources of their choice. The trial covered biology, chemistry and physics, so it speaks most directly to those subjects.

Frequently asked questions

How can I revise for exams effectively?

Test yourself instead of rereading, spread your revision over days and weeks, and practise exam-style questions marked against the mark scheme. These match the two techniques Dunlosky's 2013 review rated most useful: practice testing and distributed practice.

What does active revision mean?

Active revision is any method that makes you recall or use what you've learned, such as blurting, flashcards, self-quizzing or past paper questions. Reading, highlighting and copying out notes are passive, because the answer stays in front of you.

Does the 2/3/5/7 revision rule work?

It can help, because it builds spacing into your week. The research supports spacing in general, and we haven't found evidence that those exact days beat other spaced schedules.

Should I rewrite my notes to revise?

No, copying them out on its own won't do much, because the answer stays in front of you. If you want to rewrite, do it from memory first, then check against the original and fill the gaps.

How long should I revise for each day?

There's no official number. Short, focused blocks with breaks, spread across the week, tend to work better than one long session. How you spend the time matters as much as how long you spend.

Are flashcards good for revision?

Yes, as long as you answer before you turn the card over, which makes them a form of practice testing. Keep the cards you get wrong in the pile and bring the others back later. To compare flashcard and quiz tools, see our guide to the best GCSE revision apps in 2026.

How do you revise for an exam in 7 days?

Pick the topics with the most marks to gain, test yourself on them each day and do at least one timed paper before the exam. Use your notes to check answers, not to reread.

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