What is good teaching? What is good learning?

Good teaching and good learning are difficult to describe, yet we know good teaching when we see it and if you are learning you know it. 

Take a look at the video clip below and see what Dr. Mazur is doing in his classroom.

 See if you can describe what he did to help his students learn.  How much time did he lecture?  Did the activity he used have a point?  What evidence did you observe that the students were engaged or they are learning?  What types of questions did he ask?    

What did you see and not see?