Active recall
Active recall means retrieving an answer from memory instead of re-reading or recognising it. The effort of retrieval is what strengthens the memory — which is why being tested beats reviewing notes, an effect researchers call the testing effect.
Re-reading a textbook feels productive because the material grows familiar, but familiarity is not the same as the ability to recall. Active recall forces the harder, more useful act: producing the answer yourself, from a blank slate. That retrieval effort is precisely what consolidates the memory.
Decades of cognitive-science research show retrieval practice produces dramatically better long-term retention than passive review — even though it feels harder and less fluent in the moment. The difficulty is the point: a memory that takes effort to retrieve is a memory being strengthened.
Flashcards are the purest tool for active recall: the front asks, and you must answer before flipping. The card never lets you passively recognise — you have to retrieve.
How EverFlip does this
Every EverFlip card shows the prompt first and hides the answer until you flip — so you always retrieve before you check. Combined with spaced repetition, that is retrieval practice scheduled for maximum effect.