Secret Codes by Doug Stephen, IHMC
February 22, 2020
February Science Saturday was about secret codes and cryptography. Third and fourth graders did hands-on activities related to backwards writing, mirror writing, the substitution cipher, and the book cipher. The fifth and sixth grade activities included a more advanced version of the substitution cipher. The older students also learned about the WWII enigma cipher, and they made simple enigma machines for coding and decoding messages in an almost ”impossible to break” code. High school students assisted. Photos by Maggie Brown, a student volunteer who attends Pace High School.