We need a system that encourages students to discuss topics based on "facts", no who screams or bullies that other party. Certainly there are subjects which are

We need a system that encourages students to discuss topics based on "facts", no who screams or bullies that other party. Certainly there are subjects which are indeed subjective. But there are many that are not. And in the process of uncovering these facts as the basis for an argument, one may learn...