You will be broken into random groups (count off by 3) and given 30 minutes to accomplish the task.
You will have one large poster or sheet of paper to show your finished product.
Your task is to create a caste system with which you will rule the entire world.
All other details about your world are up to you. These details might help describe the purpose of your system.
You will show off the system with the paper in the last 10 minutes of class.
The group that convinces me that their group is best, wins. (don't ask what)

(This is a "work in progress".)