What is the characteristics of flash cards?

Flashcards are typically simple, portable study tools that consist of a prompt on one side and the corresponding answer or information on the other. They are often used for memorization and active recall, facilitating spaced repetition learning. Flashcards can be physical or digital, and they are effective for a variety of subjects, from vocabulary to complex concepts. Their concise format encourages quick review and self-testing, aiding in retention and comprehension.