Signals, Symbols and Secret Codes

From ancient stone carvings to modern computer code, people have found clever ways to send messages in secret. In this hands-on course, students will become junior cryptographers—learning different code systems from around the world and throughout history, then using them to create and crack their own secret messages. Each week begins with a real-world example of a code in action, followed by a chance to try it, solve challenges, and make their own. By the end, students will invent an original code in teams and put it to the test in a class-wide code challenge.