This handout explains the origin and history of ATC's. It also explains how they are made along with some basic rules to guide the students as they begin to make their own cards. The second sheet of the handout explains directions on how to get started and gives them a place to brainstorm a theme. There are also 3 templates where they can begin sketching their ideas. I would also suggest looking up examples on the internet to give them some ideas of what they look like.