Students learn how to communicate in code in the same way that U.S. prisoners of war did during the Vietnam War. The Tap Code is easy to learn and the presentation includes a slide of student handout cheatsheets with the code and basic instructions. The presentation also includes 3 short audio messages using the tap code for students to decipher.
This is a fun activity that can be used in conjunction with a Vietnam War unit or just in general (who doesn't like learning secret codes?) It takes between 5 and 10 minutes to complete.