Retrieval Practice Scheduler
Spacing intervals for a topic across a term, worked backwards from the assessment date rather than forwards from the lesson.
The spacing and testing effects are among the most replicated findings in learning research; the exact schedule is not. Five expanding reviews across fourteen weeks land at 0.7, 1.8, 3.7, 6.9 and 12.3 weeks, and retrieving beats rereading whatever the gaps.
Retrieval Practice Scheduler
Frequently asked
What is retrieval practice?
Recalling material from memory rather than reviewing it — a quiz, a blank page, a question with the book closed. The act of retrieving is what strengthens memory, which is why rereading feels productive and does much less.
How long should the gaps be?
Longer as you go, and the exact schedule matters less than most planning tools imply. The evidence supports spacing over massing robustly and specific interval ratios only weakly.
Does it have to be a test?
No, and low-stakes is better than high-stakes. What matters is that pupils attempt recall before seeing the answer, and that they get corrective feedback afterwards.
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