Synergetic – it’s team-oriented, balanced, and group graded (the whole class gets a single grade for each discussion).
Practiced – it’s ongoing, practiced and debriefed. It’s not a one-time activity but a process, much like writing.
Independent – the teacher “interferes” as little as possible; students run the discussion and self-assess.
Developed – the discussion gets deep, builds on itself, goes “somewhere.”
Exploration – this is the main goal; more than discussion, it is a discussion-based exploration (of a text, Essential Question, or topic).
Rubric – this is the cornerstone to the whole process: to have a clear, concise rubric against which students can easily self-assess (you can make the rubric based on what you want to accomplish, but you are welcome to use/adapt some sample ones here on my wiki).
The “Web” part of the name comes from the web-like graph that one of the students or I graph to map the discussion while it’s happening and then use to debrief later.