I like the idea of creating a welcoming, productive environment for your students by evaluating the classroom prior to class. I have found that for certain course topics, the desks should be rearranged or thought-provoking ideas should be presented on the white board as students enter the room. I like the element of surprise when students arrive, to excite them about the course content for that session. Any other ideas or things to look for in the class room prior to class?