Courtney Faith Nelson and Faith Denise Ariel Chapman, both 9 years old, studiously scanned their electronic tablets while sitting on the floor of Phicol Williams Community Center in Homestead Wednesday morning. In front of them was a taped maze.

The Primer Microschools students were entering calculations into the computers to help their baseball-shaped robots successfully traverse every corner of the course laid out before them. For each move the robots made, the students had to enter a new line of code.

The exercise was equal parts computer understanding and solve-as-you-go adaptation to fresh obstacles.

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