Two techniques beat everything else in the research, and they're free: retrieval practice (forcing yourself to recall the work from memory) and spaced practice (spreading study over days instead of cramming). Most of what students actually do — rereading, highlighting, copying out notes — ranks near the bottom. This guide covers what works, what doesn't, and how to put the good techniques to work for South African subjects and exams.
The two techniques that carry the most weight
Retrieval practice: recall it, don't reread it
Every time you pull a fact or method out of your own memory, you strengthen it — far more than another pass over the textbook does. The feeling of struggle is the point: easy review feels productive and mostly isn't.
Ways to do it, from lightest to closest-to-exam:
- Cover-and-recall: read a section, close the book, say or write everything you remember, then check what you missed.
- Flashcards — question on one side, answer on the other, and you must answer before flipping.
- Practice questions and exercises — maths and science are learned by doing problems, not by reading worked examples.
- Past papers under timed conditions — the gold standard for matric subjects. DBE past papers are freely available, and they teach exam technique and time management alongside the content.
Spaced practice: same hours, spread out
Reviewing work three times for 20 minutes across a week beats one 60-minute session the night before — same time, much stronger memory. Forgetting a little between sessions and then retrieving the material again is exactly what makes it stick.
In practice: revisit this week's work briefly on the weekend, again a week later, and again before the test. Our study timetable guide shows how to build this rhythm into a normal school week.
Worth adding once the basics are in place
- Interleaving: mix problem types within a session (algebra, then geometry, then trigonometry) instead of doing twenty of the same kind. Exams mix topics; practice should too.
- Elaboration: explain the work in your own words — to a study partner, a parent, or a tutor — and ask why and how questions. If you can't explain it simply, you've found the gap.
- Worked examples first, then fade: for brand-new topics, study a fully worked solution, then attempt problems with less and less help.
What doesn't work (but feels like it does)
| Popular habit | The problem |
|---|---|
| Rereading the textbook | Creates familiarity, not recall — you recognise the page, but can't reproduce it in the exam |
| Highlighting | Marks the page, not your memory; among the lowest-rated techniques in research |
| Copying out neat notes | Mostly mechanical; useful only if you're condensing and rephrasing, not transcribing |
| Studying to your "learning style" | The visual/auditory learning-styles theory has repeatedly failed scientific testing — matching the method to the material works better |
| All-night cramming | Trades durable memory and exam-day sharpness for short-term coverage |
The uncomfortable pattern: the techniques that feel smooth are weak, and the ones that feel effortful are strong. That effort is what learning actually feels like.
Making it work in a South African week
- Use past papers early, not just in exam season. From Grade 10 up, they're the best retrieval practice available and they calibrate you to how the NSC or IEB actually asks questions.
- Study groups work when they quiz. Reading together is rereading; testing each other is retrieval practice.
- No data, no problem: flashcards, cover-and-recall and past papers on paper all work offline. The techniques are older than the internet.
And when you hit a question you can't crack — a maths step that won't come out, a concept that won't click — that's the moment for help that explains rather than just answers. StudyBru's tutors walk through problems step-by-step and let you ask "why?" until it makes sense, any time of day.