We have talked about the differences between 20th and 21st century classrooms, but here is a chart that describes the anatomy of a 21st century classroom. You will see that it is divided into the 4 C's of the Partnership for a 21st Century work suggests plus Research.
You will also notice that this chart separates the roles of teachers versus students.
What do you think? Does this do an admirable job of describing the anatomy or do you have something to add?