Abstract
Here I describe an exercise that engages students and helps to introduce difficult concepts. The exercise can be used in a variety of courses, it can be tailored to help introduce future course concepts or readings, and it can be used in any level course; it engages both students with strong backgrounds in philosophy and students new to the discipline. The exercise can be used in courses covering ethics, social justice, philosophy of law, criminology, or epistemology. This paper explains the exercise and highlights some ways the exercise can be modified.