The Secret Life of Prime Numbers

Author: Enrique Ortiz
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It's not magic. By color-coding different combinations of factors, students can learn to use this system to “guess” unknown, randomly selected integers and composites.

Contributor Notes

Enrique Ortiz, enrique.ortiz@ucf.edu, teaches mathematics methods courses at the University of Central Florida in Orlando. He is interested in the use of technology, use of games and puzzles, teaching goals, and brain-based research.

(Corresponding author is Ortiz enrique.ortiz@ucf.edu)
Teaching Children Mathematics

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