I really enjoyed this lesson, as it highlighted flaws [that I expected it to] in my own methods. I am thinking over some of the questions I currently ask in "closed form", and planning on how to change more into "open form". However, there's one thing that I think needs to be in place in any classroom to enable more of the improved "open questions/probing/praise, etc" to be applied: a "SAFE" classroom environment. By that I mean the students need to know it's ok to not be 100% correct, and that they can have an opinion without being chastized for it. Maybe this topic is better suited to another area, but I think the best questioning attempts won't help unless the students see responses from the instructor that are in the interests of bettering them. It takes courage to answer an instructor, especially in the presence of an entire classroom. So the "vibe" in that room needs to be one that allows all these good questioning techniques to be applied.