Review
What you know fades. This catches the things about to slip — built only from what you've actually worked: solves, quizzes, lectures, and tutor vocab.
New here? What a review queue is
You forget most of what you learn within a couple of days — unless you pull it back out of your head. That is all this page is: it asks you the thing you are closest to forgetting, right before you forget it.
1
You never build this list
Every problem you solve, quiz you take and lecture you drop in adds to it automatically. There is nothing to type in.
2
Answer from memory first
Where we kept the answer, you type it and we check it instantly. Otherwise, say it in your head, then reveal. Getting it wrong is useful — that is the point.
3
Right answers come back later, wrong ones sooner
Each time you get something right the gap before you see it again roughly doubles. Miss it and it comes straight back.
An empty queue is good. It means nothing is close to slipping yet — come back in a day.
Nothing to review yet
Solve a problem or take a quiz — what you touch shows up here as it starts to fade.
Solve something