Exams

How to Study for Exams: The Complete Guide

How to study for exams: a timeline from 8 weeks out to exam morning, with active recall, past papers, spaced repetition, sleep and an exam-week plan.

· 13 min read

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In this guide
  1. What actually works when you study for exams?
  2. How far ahead should you start studying for exams?
  3. The exam study timeline: from 8 weeks out to the morning of
  4. How do you use active recall to study for exams?
  5. How do you use past papers properly?
  6. How should you space your revision?
  7. What should an exam-week plan look like?
  8. How much sleep do you need before an exam?
  9. How many hours a day should you study for exams?
  10. What are the most common exam study mistakes?
  11. How to do this in StudyDork
  12. Start with the next 25 minutes

To study for exams, start revising early, test yourself on the material instead of rereading it, and spread your review of each topic across several weeks. Finish with timed past papers and a good night's sleep before the exam. That is the whole method in two sentences. The rest of this guide turns it into a plan you can follow, week by week, from 8 weeks out to the morning of the exam.

It works for high school exams like the HSC, VCE, GCSEs, A levels or AP, and for uni finals. The details change between subjects. The principles don't.

What actually works when you study for exams?

Learning researchers have tested a lot of study methods, and the results are consistent. In a large review, Dunlosky and colleagues (2013, Psychological Science in the Public Interest) rated practice testing and distributed practice as the two most useful techniques for students. Highlighting, rereading and summarising rated low.

Two findings matter most:

  1. Testing yourself beats rereading. Roediger and Karpicke (2006, Psychological Science) found that students who practised recalling a passage remembered more of it a week later than students who spent the same time rereading it. Pulling information out of your memory strengthens it. This is called active recall.
  2. Spacing beats massing. Cepeda and colleagues (2006, Psychological Bulletin) reviewed hundreds of experiments and found that spreading practice over time produces better retention than doing it all at once. This is called spaced repetition.

The catch is that the effective methods feel harder. Rereading your notes feels smooth because you recognise everything. Closing the book and trying to explain the topic feels awkward because you notice what you've forgotten. That awkward feeling is the learning happening.

Method How it feels How well it works for exams
Rereading notes Easy, familiar Weak on its own
Highlighting Productive Weak
Rewriting notes neatly Satisfying Weak unless you write from memory
Flashcards answered from memory Effortful Strong
Blank page recall (blurting) Uncomfortable Strong
Past papers under timed conditions Stressful Strong, and exam specific
Teaching a topic out loud Awkward Strong
Mixing problem types (interleaving) Confusing at first Strong for maths and science

How far ahead should you start studying for exams?

For major exams, start structured revision 6 to 8 weeks before the first paper. That sounds early, but it is what lets you review each topic three or more times with gaps in between, which is the spacing effect at work.

Use this as a rough guide:

Exam type When to start revising What that buys you
Class test on one topic 1 to 2 weeks before Two or three review passes
Mid-semester or half-yearly exam 3 to 4 weeks before One full pass, then past questions
Trial exams, mocks or uni finals 5 to 6 weeks before Full coverage plus timed papers
Final exams (HSC, VCE, A levels, AP) 8 weeks or more before Three passes, many timed papers

If you're reading this with less time than that, don't panic. Read the timeline below and start at whichever stage matches the weeks you have left. If it's the night before, go straight to how to cram for an exam.

The exam study timeline: from 8 weeks out to the morning of

8 weeks out: map what is actually assessed

Before you study anything, find out exactly what you're being tested on. Most students skip this and waste hours on content that isn't examined.

  1. Get the syllabus, study design or course outline for each subject. List every topic or dot point.
  2. Find the exam format: how long, how many sections, multiple choice or extended response, calculators or not, and what you're given (formula sheets, data sheets, set texts).
  3. Collect past papers and marking guidelines. For the HSC that means NESA. For VCE it means VCAA. At uni, check your learning platform or library.
  4. Rate every topic red, amber or green. Red means you couldn't answer a question on it today. Green means you could.

You now have a list of everything that matters and an honest picture of where you stand. That list is the backbone of your study timetable.

6 to 7 weeks out: turn notes into questions

Go through each topic and convert your notes into things you can be tested on. Don't write new summaries. Write questions.

  1. For each dot point, write two or three questions in the margin or on flashcards.
  2. Add key definitions, formulas, dates, quotes and processes as flashcards.
  3. Start with red topics. They give you the biggest gain per hour.

A good question is specific. "Photosynthesis" is a topic. "What are the inputs and outputs of the light-dependent reactions, and where do they happen?" is a question you can answer or fail.

4 to 5 weeks out: active recall and spaced review

This is the core of your revision. Each study block should look roughly like this:

  1. Pick a topic. Close your notes.
  2. Write down everything you can remember on a blank page, or answer your questions from memory.
  3. Open your notes and check. Mark what you missed in a different colour.
  4. Spend a few minutes relearning only the gaps.
  5. Schedule the next review of that topic a few days later.

Rotate topics. Don't spend a whole week on one chapter, because you'll have forgotten chapter one by the time you reach chapter six. Mixing topics within a session, especially in maths and science, also helps you learn to pick the right method. That's called interleaving.

2 to 3 weeks out: past papers under real conditions

Now shift most of your time to past papers. They are the closest thing to the real exam and they show you what the markers reward.

  • Do one or two papers untimed with notes open, just to see the question style.
  • Then do full papers under exam conditions: timed, no notes, phone in another room.
  • Mark strictly against the marking guidelines or worked solutions.
  • Log every mistake (more on that below).
  • Go back to recall practice on the topics that cost you marks.

The final week

The final week is for sharpening, not learning new material.

  • Do one or two more timed papers per subject, or timed sections if full papers are too long.
  • Review your mistake log daily.
  • Run quick recall on every topic, focusing on the reds and ambers that are still shaky.
  • Get your logistics sorted: exam times, rooms, what to bring, how you're getting there.
  • Keep your sleep and meal times regular.

The night before

Keep it light. Read through your mistake log and key formulas or quotes, then stop. Pack your bag, lay out what you need and go to bed at your normal time. The night before is not when you learn a topic you've never looked at.

The morning of the exam

Eat breakfast, even something small. Do a 10 to 15 minute warm-up: a few easy practice questions or a quick flick through your flashcards, just to get your brain into gear. Arrive early. Avoid the crowd outside comparing notes if it makes you anxious. When you get the paper, read the instructions, plan your time per section and start with a question you're confident about.

How do you use active recall to study for exams?

Active recall just means retrieving information from memory instead of looking at it. Here are four ways to do it, all of which work with any subject:

  • Blurting. Write a topic heading on a blank page and write everything you remember for 10 minutes. Then check your notes and fill in the gaps in another colour.
  • Flashcards. Question on the front, answer on the back. Say or write the answer before you flip. Sort cards into "got it", "shaky" and "no idea", and review the last two piles more often.
  • Question lists. Turn each syllabus dot point into questions, then answer them from memory, ideally out loud or in writing.
  • Teach it. Explain the topic to a friend, a sibling or an empty chair without notes. Every time you stall, you've found a gap. The Feynman technique is a structured version of this.

The rule is simple: try first, check second. If you look at the answer before you've tried, it isn't recall.

How do you use past papers properly?

Past papers are only useful if you learn from the marking. Doing twenty papers and never checking them closely teaches you very little.

  1. Do it under conditions. Same time limit, same materials, no phone. If a full paper is too long for one sitting, do a timed section.
  2. Mark it strictly. Use the official marking guidelines, examiner reports or worked solutions. Be harsher than you think a marker would be.
  3. Read the marker feedback. Reports from exam boards explain where students lost marks. They often repeat year after year.
  4. Log your mistakes. Write down every lost mark and why you lost it.
  5. Fix the cause, not just the answer. If you lost marks for not showing working, practise showing working. If you ran out of time, practise timing.

Keep a mistake log

A mistake log is a simple table you add to after every paper. Before the exam, it becomes your most valuable revision sheet, because it is a list of exactly the things you tend to get wrong.

Question What went wrong Type of mistake Fix
2023 Paper Q14 Forgot the chain rule on the inner function Content gap 10 chain rule questions on Thursday
2022 Paper Q9 Answered "describe" when it asked "explain" Misread the verb Underline the directive verb before writing
2021 Paper Q22 Ran out of time, left part c blank Timing Allocate time per mark next paper
2020 Paper Q5 Sign error in the last line Careless Check signs as a final step

Patterns show up quickly. If most of your mistakes are timing, you don't need more content. You need more timed papers.

How should you space your revision?

Spacing means coming back to a topic after a gap, just as you start to forget it. A simple schedule that works without any app: review a topic 1 day after you first study it, then 3 days later, then a week later, then two weeks later.

Here is what that looks like for one topic over a month:

Day What you do
Day 1 Learn the topic, write questions, first recall attempt
Day 2 Recall from memory, check, fix gaps
Day 5 Recall again, then a few practice questions
Day 12 Mixed practice with other topics
Day 26 Past paper questions on this topic under time pressure

You don't need to track this perfectly. Rotating through your topic list so nothing goes untouched for more than a week or two gets you most of the benefit. Flashcard apps such as Anki do the scheduling for you if you prefer.

What should an exam-week plan look like?

Exam week is about pacing. You're switching between subjects, sitting long papers and trying to sleep well. Plan it ahead so you aren't deciding what to study at 9pm each night.

Here's an example for a student with three exams in one week:

Day Morning Afternoon Evening
Saturday Biology timed paper Mark it, update mistake log Light chemistry recall, early night
Sunday Chemistry timed paper Mark it, fix weak topics Review biology mistake log
Monday Biology recall, key diagrams Short break, then biology flashcards Pack bag, sleep on time
Tuesday Biology exam Rest, walk, eat Chemistry recall, 60 to 90 minutes
Wednesday Chemistry timed sections Mistake log review Light review, sleep on time
Thursday Chemistry exam Rest English quotes and essay plans
Friday English practice essay, timed Review plans and quotes Light review, sleep on time
Saturday English exam Done for the week Celebrate properly

Notice what is not there: no all-nighters, no full days on one subject right before a different exam, and real rest after each paper.

How much sleep do you need before an exam?

Most teenagers need more sleep than adults, and most students get less than they need during exams. Sleep isn't wasted time. While you sleep, the brain consolidates memories from the day, which is part of how revision turns into something you can recall later.

Cutting sleep to study more usually backfires. You'll be slower, make more careless errors and find it harder to recall what you know. If you're choosing between two more hours of late-night revision and two more hours of sleep before an exam, sleep is almost always the better trade.

A few things that help:

  • Keep a regular bedtime and wake time in the weeks before exams, ideally matching the time you'll need to get up on exam days.
  • Stop studying 30 to 60 minutes before bed.
  • Keep your phone out of reach at night.
  • Go easy on caffeine in the afternoon.

If stress is stopping you from sleeping for more than a few nights, talk to a GP, your school counsellor or a service like Headspace.

How many hours a day should you study for exams?

It depends on how close the exams are and how many subjects you have, but focused time matters more than total time. Three hours of real focus with your phone out of the room will beat six hours of half-studying.

Most students find a rhythm like this manageable:

  • School term, 6 to 8 weeks out: 1.5 to 3 hours on school days, more on weekends.
  • Study leave or holidays: 4 to 6 focused hours a day, in blocks.
  • Exam week: enough to stay sharp on the next paper, plus plenty of rest.

Break the time into blocks. A Pomodoro-style routine of 25 to 50 minutes of focus followed by a short break suits most people. For more detail, read how many hours a day you should study.

What are the most common exam study mistakes?

  • Only rereading and highlighting. It feels good and doesn't stick.
  • Studying your favourite subject the most. Your green topics are comfortable. Your red ones are where the marks are.
  • Leaving past papers to the last week. You'll find your timing and question-reading problems too late to fix them.
  • Making beautiful notes. Notes are a tool, not the goal. If you've spent three weeks colour-coding and haven't tested yourself, change course.
  • Studying with your phone next to you. Every notification breaks your focus, and even a phone face down on the desk is a pull on your attention.
  • Pulling all-nighters. You trade memory and alertness for a few extra hours of low-quality study.

How to do this in StudyDork

StudyDork is a free iPhone app for studying with friends, and it can carry the routine above.

  • Run your blocks with the Pomodoro timer. The free plan runs 20 minute focus blocks with 5 minute breaks, in one hour sessions. StudyDork Pro adds the 25/5 Classic and 50/10 Deep splits, and the 50 minute block is handy for timed past paper sections. There's also a plain study timer from 15 minutes to 8 hours for full papers. See the Pomodoro timer.
  • Block your distracting apps. Pick the apps that pull you away and StudyDork blocks them until the session ends, even if the app is closed. Pro adds Ultra Locked In for exam weeks, which removes every way out of a session. See the app blocker.
  • Track hours by subject. Add each subject (they're free and unlimited) and pick one before each session. Your streak and daily goal make it easier to show up on the days you don't feel like it. See progress tracking.
  • Study with your clan. Seeing classmates at their desks in your clan's study room is a good reason to sit down at yours.

Start with the next 25 minutes

You don't need the perfect plan to begin. Pick your weakest topic, close your notes and write down everything you know about it. Check what you missed. That single block is already better exam preparation than an afternoon of rereading. Do it again tomorrow with a different topic, come back to the first one in a few days, and you're running the method that works.

Frequently asked questions

How many weeks before an exam should I start studying?

For big end-of-year or final exams, start structured revision 6 to 8 weeks before. For a mid-semester test or a single-topic exam, 2 to 3 weeks is usually enough. The goal is to have time to review every topic at least three times, with gaps in between.

Is rereading notes a good way to study for exams?

Rereading feels productive but is one of the weaker ways to study, because recognising information is easier than recalling it. Turn your notes into questions and answer them from memory instead. Read the notes only to check what you got wrong.

How many hours a day should I study for exams?

There is no single right number, but most students do well with 2 to 4 hours of focused study on school days and 4 to 6 hours on weekends or study leave, broken into blocks with breaks. Focused hours matter far more than hours sitting at a desk with your phone nearby.

Should I study the night before an exam?

A short, light review of your key formulas, quotes or mistake log the night before is fine. Learning new content late at night is rarely worth it. Stop at a reasonable time and protect your sleep, because a tired brain recalls less in the exam.

What is the best way to use past papers?

Do the first few untimed with your notes nearby, then move to full papers under real exam conditions. Mark every paper strictly with the official marking guidelines or solutions, and write each mistake into a log you review before the exam.

How do I remember everything for an exam?

You don't need to remember everything, you need to be able to retrieve what is assessed. Work from the syllabus or course outline, test yourself regularly on each topic, and revisit topics on a spaced schedule so they are still fresh on exam day.

Start studying with friends

StudyDork is free on iPhone and iPad. Android is coming soon to Google Play.