Menu
Home
People
Places
Arts
History
Plants & Animals
Science
Life & Culture
Technology
Reference.org
Leitner system
open-in-new
<p>The Leitner system is a widely used method of efficiently using <a href="/facts/Flashcard/YPIs6GrX">flashcards</a> that was proposed by the German science journalist <a href="/facts/Sebastian_Leitner/9mK68r4B">Sebastian Leitner</a> in 1972. It is a simple implementation of the principle of <a href="/facts/Spaced_repetition/T4f2c3Yv">spaced repetition</a>, where cards are reviewed at increasing intervals. </p>