How well did you know it?
Review
Answer from memory, then grade yourself. Cards you find hard come back soon and cards you know come back after days or weeks. Progress is saved in this browser.
Due now
–
seen before, ready again
New
–
not seen yet
Learning
–
next review within a week
Known
–
next review in 2+ weeks
Session complete
Each session is up to 20 cards: the ones that are due first, then new ones in chapter order. Space shows the answer, 1–4 grade it.