Spaced repetition feels almost too small to matter.
A few minutes of flashcards on the bus. A quick review the day after class. Another review a week later. Nothing dramatic.
And yet those tiny repeats are the difference between “I understood this last month” and “I can recall it under exam pressure.” If you want Revision Tips that genuinely change outcomes for IB exams, the science of spaced repetition is where you start.
Quick checklist: spaced repetition in one page
Use this as your default set of Revision Tips when you do not know what to revise next:
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Learn the forgetting curve (so forgetting stops feeling personal).
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Use active recall (test yourself, do not re-read).
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Schedule reviews at increasing intervals (1 day, 3 days, 1 week, 2-3 weeks).
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Keep flashcards short: one idea per card.
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Convert mistakes from practice questions into new cards.
If you want a fuller flashcard workflow, borrow the structure from How to Effectively Use Flashcards for Revision | Study Tips.
Why your brain forgets (and why that is useful)
The forgetting curve is the quiet villain of exam season. You learn something, you understand it, and then time passes. The brain trims what it thinks you will not need.
Hermann Ebbinghaus showed that forgetting happens fast without review. A large portion of new information fades within days, and even more within a week. That is not you being “bad at studying.” That is the default.
Spaced repetition takes advantage of that default. You review right before the memory disappears, which strengthens the pathway. Do that repeatedly, and the memory becomes cheaper to retrieve. In IB terms: definitions become automatic, processes become fluent, and essays stop feeling like you are building from scratch.
The spacing effect: the schedule that compounds
Spaced repetition is simple: review the same material at increasing intervals.
A practical pattern many students can stick to:
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First review: 1 day after learning
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Second review: 3 days later
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Third review: 1 week later
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Fourth review: 2-3 weeks later
The point is not perfection. The point is timing.
If you review too soon, you are just re-reading something you still remember. If you review too late, you are relearning from zero. The sweet spot is “slightly hard.” That slight struggle is a sign the memory is being rebuilt stronger.
For more science-based study strategy, pair this with How Active Recall Can Revolutionize Your Study Routine.
Active recall: why flashcards beat highlighting
Spaced repetition only works when the review forces retrieval.
That is why flashcards, closed-book blurts, and self-quizzing outperform passive methods. Highlighting feels productive because it is smooth. But the exam is not smooth. The exam asks you to produce.
The best Revision Tips usually sound like this:
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“Answer first, check second.”
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“Struggle briefly, then correct.”
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“Retest tomorrow, not next month.”
RevisionDojo is built around this loop. You can build understanding with Digital IB Study Notes You Can Access Anywhere, then keep it alive with IB Flashcards with Spaced Repetition (SRS), and then prove it under pressure with the Questionbank and timed practice.
How to apply spaced repetition across IB subjects
Spaced repetition is not just for vocabulary. These Revision Tips translate cleanly across the IB:
Sciences (Biology, Chemistry, Physics)
Use cards for definitions, mechanisms, required practical language, and common data-analysis steps. Then reinforce with exam-style questions in a Questionbank loop. After each session, turn your two biggest errors into two new flashcards.
Maths
Cards should test conditions and method triggers, not just formulas. Examples: “When do I use substitution?” or “What does the command term ‘solve’ require me to show?” If you want a math-specific routine, see How to Combine Math Practice With Active Recall Techniques.
Humanities (History, Economics, Business)
Use spaced repetition for case studies, definitions, key thinkers, evaluation language, and essay scaffolds. Then train timing and structure with weekly exam simulations.
English and Languages
Spaced repetition is perfect for vocab, literary devices, quote banks, and sentence starters. The goal is to reduce the “blank page” feeling by making building blocks automatic.
A calm routine you can actually sustain
Here is a weekly structure that matches real life and keeps the spacing effect working:
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Daily (10-15 min): Flashcards only.
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3-5 days/week (30-45 min): One targeted Questionbank set on a micro-topic.
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1 day/week (60-120 min): Timed practice using a Mock Exam or Predicted Paper.
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After every practice: write a tiny mistake log and convert 1-3 items into flashcards.
If your overall study plan feels chaotic, anchor your schedule with Revision Tips: Build a Study Routine That Works and pressure-test it with How to Study for IB Mocks (Without Burning Out).
RevisionDojo ties the system together: Study Notes for clarity, Flashcards for spaced repetition, Questionbank for practice, AI Chat to get unstuck fast, Grading tools for feedback, Mock Exams and Predicted Papers for realism, plus a Coursework Library and Tutors when you need deeper support. The point is to keep you moving from understanding to recall to performance, without losing weeks to re-reading.
Closing: the smallest habit with the biggest return
Most study plans fail because they rely on motivation.
Spaced repetition succeeds because it relies on time.
If you want Revision Tips that compound quietly, do this: learn once, test yourself, and return right before you forget. Then let the intervals widen. Build a small daily flashcard habit, connect it to exam-style practice, and treat mistakes as raw material for the next set of cards.
When you are ready to run that loop in one place, use RevisionDojo’s Study Notes, Flashcards, Questionbank, AI Chat, Grading tools, Predicted Papers, Mock Exams, Coursework Library, and Tutors to turn spaced repetition into a complete IB exam system.