The document discusses three common approaches to argumentation - the Classical, Toulmin, and Rogerian approaches. It then focuses on explaining the key principles and structure of the Rogerian approach. The five key elements of a Rogerian argument are: 1) a brief, objective statement of the issue; 2) exploring common ground; 3) a complete description of the opposing position; 4) a complete description of your own position; 5) presenting a solution that considers both positions and finds compromise. The goal of the Rogerian approach is to have a less confrontational discussion through understanding different perspectives and finding common ground.