Young scholars brainstorm and discuss the concept of cryptography, the science of secrets in today's world and then focus on a system for sending secret messages used by Julius Caesar. They make a Caesar wheel assessing encrypting and...

Students examine and discuss the Morse Code. In small groups they develop messages using Morse code and take turns decipering the messages.

Young scholars examine the role of signal corps during the Civil War and explore the technique of 'wigwag.' In this Civil War lesson, students discuss the way they communicate long distance today, they research how a civil war soldier...