A free, self-paced textbook in 7 chapters. Read a chapter, then drill it with the 162 companion flashcards using spaced repetition.
Memory is not a passive recording; it is a reconstructive process that decays rapidly without reinforcement. Hermann Ebbinghaus's forgetting curve shows the shape of that decay: ro...
Spaced repetition counteracts the forgetting curve by timing reviews to land just before forgetting would occur. Each successful recall pushes the next review further into the futu...
Most modern spaced repetition software is built on SuperMemo-2, the algorithm devised by Piotr Woźniak in the mid-1980s. At each review the user grades recall quality on a 0–5 scal...
The whole point of a flashcard is active recall, the mental act of producing an answer before you flip the card. If you flip first and read the back, you have just performed recogn...
John Sweller's cognitive load theory explains why instruction must respect the limits of working memory. Intrinsic load is the inherent complexity of the material; extraneous load...
Several techniques force the kind of engagement that produces real understanding rather than the appearance of it. The Feynman technique is to explain a concept in simple terms as...
Metacognition is thinking about one's own thinking - knowing what you know, knowing what you don't, and adjusting strategies accordingly. Within it, calibration refers to the accur...