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3 results for “spaced repetition”.

• Spaced-Repetition Algorithms — How SM-2 and Its Successors Compute the Next Interval
  Behind every flashcard app's "seen in 4 days" is a small formula from 1987: an ease factor, a growing interval, and a penalty when you falter. Here is what the maths actually does, in plain terms.
• The Leitner System — Flashcard Boxes and Scheduled Review, Explained
  Sebastian Leitner's 1972 method turns a shoebox and rubber bands into a spaced-repetition machine: five boxes, fixed review intervals, and one rule — a card you get right graduates, a card you get wrong goes back to box one.
• The Forgetting Curve and How Spaced Repetition Beats It
  Ebbinghaus mapped it in 1885 and the shape has not changed since: memories decay on a schedule you can predict — which means review timed to the decay costs a fraction of the hours cramming takes.