Spaced Repetition
Also known as التكرار المتباعد
Definition
Spaced repetition schedules review of material at increasing intervals over time, prompting recall just as it begins to fade. It is one of the best-evidenced techniques in learning science: the same total study time distributed across sessions produces substantially better long-term retention than a single block.
Ebbinghaus's forgetting curve describes the problem it solves — most of what is learned in a single session is lost within days without reinforcement. The corollary is uncomfortable for corporate training: a one-off annual course, however well made, predictably leaves little behind by the following quarter.
Implementation is straightforward and rarely done. Short recall prompts delivered over the weeks after a course, ideally requiring active retrieval rather than passive review, convert a completed course into retained capability. The mechanism is why microlearning works best as a reinforcement layer rather than a standalone program.