How Memory Works
Encoding, storage and retrieval, and why forgetting is normal.
A free flashcard trainer that rewards steady study with XP, streaks and badges, backed by plain-English guides to how memorization works.
What happens to a card in the Leitner system when you get it wrong?
It goes back to box 1, so it comes up again soon.
Tap the card to flip it. Then swipe right if you knew it, left if not. You can also use the Space bar and the arrow keys.
Each topic has nine guides. Start with how memory works, or jump to the technique you need today.
Encoding, storage and retrieval, and why forgetting is normal.
Review on a schedule and pull answers from memory instead of rereading.
Memory aids that turn dry facts into pictures, stories and places.
Practical plans for vocabulary, formulas, dates, names, code and more.
Habits, schedules and tracking that make memorizing sustainable.
If you only read a few pages, read these. They cover the ideas the rest of the site builds on.
Spaced Repetition and Active Recall
What spaced repetition is, what research says about it, and a simple schedule you can try, including what it cannot do.
Spaced Repetition and Active Recall
Active recall means answering from memory before you look. Five ways to do it with ordinary notes, plus how it differs from rereading.
Time, shallow study, no practice at pulling answers out, and reshaped memories: four causes of forgetting, each with a fix and a diagnosis checklist.
Spaced Repetition and Active Recall
Rules for writing good flashcards, before-and-after examples, and a checklist for reviewing your own deck.
Mnemonics and the Memory Palace
Seven steps to build a memory palace, a ten-item worked example in five rooms, and fixes for blurry stations and fading images.
Study Routines That Help You Retain
Anchor a short daily review to something you already do, keep a minimum version for bad days, and see what habit research did and did not show.
Practice rewards the habit of coming back, not luck. There are no prizes, no rankings and no sign-up.
The five boxes and their waits
A simple model. How fast you forget varies from person to person, so treat the waits as a guide.