This might have application to card mememorization

To Learn Faster, Raise the Stakes « The Talent Code

When he instructed students to try to play it perfectly five times, the kids learned slowly. Some kids took thirty tries to get the five perfect ones; others took a hundred; some never got it. However, when he told the kids to try to play it perfectly five times in a row and if they missed they started again at zero, they learned it far faster. Instead of fifty tries, it took ten. “Much, much faster,” was how Stephen described it.