Same Study skills › Studying for tests › Retrieval practice and flashcards
Why do teachers say quiz yourself instead of reread?
Retrieval practice means pulling information out of memory, by quizzing yourself, instead of putting it in again by rereading. Flashcards are the classic tool. The Leitner box makes them smarter: cards you know move to boxes you review less often, and cards you miss go back to the start.
- Box 1: new or missed cards, every day.
- Know it? The card moves to the next box.
- Miss it? Back to box 1.
Why schools teach it
Remembering is what makes memories stronger
Learning research finds that practice testing is one of the most effective ways to study, much better than rereading or highlighting. Each time a student pulls an answer from memory, it gets easier to find next time. Researchers call this the testing effect.
Rereading feels productive because the words look familiar, but familiar isn't the same as remembered. Flashcards show kids honestly what they know.
At the kitchen table
What to say, and what to skip
Say this
Close the book. What do you remember?
Say the answer before you flip the card.
Commit firstMissed it? Back to box 1. No big deal.
Let's mix the cards up.
Shuffle
Skip this
- Rereading notes as “studying.”It feels good but works far less well than quizzing.
- Flipping the card before answering.Say or write the answer first.
- Dropping cards once they're right once.Keep reviewing, just less often.
See it in action
Flashcards for a science test
Make cards
Front: condensation · Back: gas cooling into liquid; drops on a cold glassQuiz
Say the answer, then flip. Right → next box. Wrong → box 1.Repeat
Box 1 daily, box 2 every other day, box 3 once a week
Writing the cards is part of studying. Store-bought cards skip that step.
Free practice sheet
Make a flashcards sheet
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Parents: tell your child's teacher about this guide
Parents also ask
Who invented the Leitner box?
Sebastian Leitner, a German science writer, in the 1970s.
Do flashcard apps count?
Yes, many use the same idea. Say the answer before you reveal it.
What should go on a card?
One question or term on the front, a short answer on the back.
Is this only for vocabulary?
No. Cards work for dates, formulas, steps and question-and-answer facts too.