How memory works, how to memorize vocabulary without cramming, and how to build flashcards you will actually remember.
Flashcards
A flashcard is only as good as what's written on it. Here are the rules that make cards quick to review, how paper compares with an app, and how to build your first deck in Just R.
Vocabulary
Speed comes from wasting fewer reviews, not from cramming more words into one evening. Here's a method built on what memory research supports, and what it can't promise.
Memory science
In 1885 Hermann Ebbinghaus memorized nonsense syllables and timed how fast he forgot them. Here's what his curve really shows, what later research added, and how to turn it into a review schedule you'll keep.
Just R is a flashcard app for iPhone and iPad built around spaced repetition. These guides cover the ideas behind it: why we forget, how review intervals fight forgetting, and how to write cards that are quick to review and hard to forget.
Every guide is written by the developer of Just R. We describe only what the app really does and link to the research we rely on.
