You forget most of what you learn within days unless you review it. Spaced repetition means reviewing just before you forget, and spacing the reviews further apart each time.
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Without review, most new material fades within a few days.
Each successful recall makes the memory last longer than before.
So each review can come later: a day, then three, then a week.
Cards you struggle with come back sooner. Easy ones wait.
Reading a chapter five times the night before feels productive because the material is familiar. Familiarity isn't recall, though. A week later, most of it is gone. Spreading the same study time across several days produces far better long-term memory, even though each session feels harder.
If a card keeps getting a low rating, don't wait for the next scheduled review. Bring it back the next day. Cards you answer instantly every time can safely wait longer.
AI Flashcards handles the two slow parts: writing the cards and remembering how you did. Every study session is saved with your 1-to-5 rating for each card, so your history builds up instead of being overwritten, and each new session leads with the cards you knew least well. You choose when to review. For a deeper look at weakest-first review, read why weakest-first flashcard review works.
It means reviewing something just before you would forget it, and leaving a longer gap before each next review. Each successful recall makes the memory more durable, so the gaps can keep growing.
As early as you can. Even two to three weeks lets you fit four or five reviews per topic. If the exam is days away, still review daily with your weakest cards first. It beats re-reading.
Yes, for the facts, formulas, reactions and definitions those exams rely on. Combine it with regular problem practice and mock tests, which train application and speed.
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