Spaced rehearsal is a learning technique that incorporates increasing intervals of time between subsequent reviews of previously learned material in order to exploit the psychological spacing effect.
Although the principle is useful in many contexts, spaced rehearsal is commonly applied in contexts in which a learner must acquire a large number of items and retain them indefinitely in his or her memory. It is therefore well suited for the problem of vocabulary acquisition in the course of second language learning, due to the size of the target language's inventory of open-class words.
It is also called "active recall," which is a principle of efficient learning thatclaims the need to actively stimulate memory during the learning process. It contrasts with "passive review," in which the learning material is processed passively (e.g., by reading, watching, etc.). For example, reading a text about George Washington, with no further action, is a passive review. Answering the question "Who was the first US President?" is active recall. Active recall is very efficient in consolidating long-term memory.
HiFiKids.com’s "Your School" feature allows members to configure their own "Spaced Rehearsal" algorithm by providing spaced repetition intervals in days, and it will inspire users to practice their quiz items in those intervals. Our research has shown that if user follows our "Spaced Rehearsal" algorithm designed for your own memory, you will retain 98% of learning within 31 days.
HiFiKids Spaced Rehearsal Algorithm