Choose
Point to one place-value rod at a time.
Live hand-tracking lab
Let your hands to move to the bead.
Turn on your camera and learn the small, precise gestures that make Soroban calculations fast and fluid.
Start the hand lab ↓Private by design · No recording · No upload
Camera practice
Your gesture playground
Place one hand in the frame. For the clearest tracking, face a light and keep your hand above a plain background.
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Ready when you are
Your browser will ask for camera access. Nothing is saved or sent to us.
Why these gestures?
Small movement. Big mental picture.
Accurate finger movement helps a learner connect each physical bead with a number. With practice, the hand motion and the Soroban image become automatic.
Move
Use one clean finger motion towards or away from the bar.
Reset
Open your hand, pause, and begin the next number.