This is an activity in which the format of the quiz is actually the teaching tool, and the questions asked about the story are less important. Students will learn some important lessons about group dynamics, communism, leadership, power, and revolutions, as well as learning something about the "importance" of grades.
The actual quiz questions can come from any existing quiz about the novel, Animal Farm (I have some for sale on this site). There may be roughly as many questions as there are students in the class, but this is not essential. What I've included here are the sheets to be made into overheads to take the students through the process. An important thing to remember though is that the students will also be creating the process as they go. You turn into an interested observer for the class period.