Counting Exercise

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Count the blue dots and click the button with that number. The green number adds the correct answers. The red number adds the differences between the actual and clicked values. The history graph shows actual numbers by a blue line and clicked numbers by a black line.
Contributed by: Michael Schreiber (March 2011)
Open content licensed under CC BY-NC-SA
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"Counting Exercise"
http://demonstrations.wolfram.com/CountingExercise/
Wolfram Demonstrations Project
Published: March 7 2011