Leitner Box · Motion study

One card.
Five boxes.

The review loop at the heart of Leitner Box. The card turns on a spring, the answer sends it into its box, and the box you see on screen is the one the card lands in. Every movement can be interrupted.

01Tap the card to flip it. Tap again halfway to turn it back.
02Answer Got it and watch the card land one box up.
03Answer Again: it goes back to Box 1, no penalty.
04On the meaning side, throw the card right or left to answer.

← Case study Start over

9:41

7 / 24

Say it out loud before you flip

Session complete

That is 12 days in a row.

0Reviewed

0Moved up

0Back to Box 1

MotionThe flip is a spring (stiffness 340, damping 36), so a second tap mid-turn sends it back with the speed it has. Answered cards travel on an arc into their box and the count pops once. Cards arrive 45 ms after the last one leaves. With Reduce Motion on, everything lands at once.

© Syd Golee · Leitner Box · shared for portfolio review