More about this activity

The game teaches fractions and estimations. Play starts by clicking on the ball. Nudge it by using the arrow keys to move it left or right.

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Release Notes

Version 26 — October 21, 2019 — 1,028 KB

* New translations,
* Fix missing sound effects,
* Fix ball stop on key release,
* Add return key to accelerate ball to completion,
* Improve performance on systems with an accelerometer,
* Pause animation on activity stop,
* Support duplicate nicknames,
* Handle loss of network.