Learned this the other day in BioPsych:
The reason why flashcards are a great way to memorize concepts and terms is because when you study with them, you make your brain work hard to retrieve information from your memory.The more you do this, the better it stays in your long-term memory.
—> To remember things better, you must make yourself retrieve that information several times.
This is also the reason why simply reading over your notes a thousand times won’t help you study. Because you’re not working hard to retrieve any information, the info is not consolidated in your long-term memory and stays in your working memory (only up to 5 seconds max).