A study technique where you review material at increasing intervals. It strengthens long-term memory more efficiently than cramming the same content in one session.
Spaced repetition schedules reviews so that you see a concept again just as you are about to forget it. Each successful recall makes the memory stronger, so intervals can grow over time.
It pairs well with retrieval practice: you are not re-reading passively—you are actively pulling information from memory, then spacing those attempts across days or weeks.