Activity Overview
In the episode "In Plain Sight." Charlie gains access to a hidden message because he understands steganography. This activity demonstrates a simple example of how this works and gives students the chance to create and view hidden writing.
Before the Activity
Download the attached PDF and look over the Teacher Page.
During the Activity
Discuss the materials from the Student Page with your class.
After the Activity
Encourage students to explore web sites and questions from the Extensions page.