What is spaced repetition?
AnswerReviewing material at growing intervals
Spacing reviews out over time strengthens long-term memory.
Education · Facts & stats
Learning facts & stats
7 fact-checked facts about the science of learning, memory and study habits, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
Which of these helps the brain lock in new memories?
AnswerSleep
Memory consolidation happens during sleep.
Going deeper
Who first charted the "forgetting curve"?
AnswerHermann Ebbinghaus
Ebbinghaus published his memory experiments in 1885.
The Leitner system is a method for studying with what?
AnswerFlashcards in boxes
Cards move to less-reviewed boxes as you answer them correctly.
What is interleaving in study?
AnswerMixing different topics or problem types
Mixing problem types helps learners choose the right method.
Expert level
What did Ebbinghaus memorize in his memory experiments?
AnswerNonsense syllables
He used meaningless syllables so prior knowledge wouldn't skew results.
Why is it called the Pomodoro Technique?
AnswerIt's named after a tomato-shaped timer
Pomodoro is Italian for tomato, after Cirillo's kitchen timer.
Know these cold?Today's round is five questions like these, 20 seconds each. Your streak and level follow you to every arena.Play today's round