The document provides several discussion protocols and techniques for facilitating classroom discussions, as outlined in Stephen Preskill's book "Discussion as a Way of Teaching." It describes various structured approaches for discussions, including having students sit in a circle and take turns speaking according to specific guidelines, splitting into small groups to discuss topics before reconvening in larger groups, using notecards for students to write reflections or quotes, and allowing students to write responses on newsprint or a chalkboard to generate discussion. The purpose of these protocols and techniques is to encourage democratic and thoughtful classroom conversations.