Little Scholarz Flash Cards Numbers (S205)

Flashcards exercise the mental process of active recall: given a prompt (the question), one produces the answer. Beyond the content of cards, which are collected in decks, there is the question of use – how does one use the cards, in particular, how frequently does one review (more finely, how does one schedule review) and how does one react to errors, either complete failures to recall or mistakes? Various systems have been developed, with the main principle being spaced repetition – increasing the review interval whenever a card is recalled correctl