Tkos

The computer draws some circles. The user must define the number of the circles in no time (in one moment).

There is a theory that the human mind can keep 5- 9 objects at one time.

However you can learn to keep and analyze more than 9 objects in mind. It is possible if you unit some objects in one group.

Program strategy
You must not try to count circles, but divide them in a group of 3-5 circles. Then appreciate the sum intuitively.

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