Slides for my EDDE 801 session, during which I will be talking about (and hopefully hearing about) what teachers do, why they do it, whether there are other ways of doing it and what the future might hold for education as we move further and further away from traditional teacher-controlled methods of learning. As much as anything it's an enquiry into the nature of a significant part of education. The slides include several ideas from the Teaching Crowds book (by me and Terry Anderson) as well as a little of my more individual work on the nature of learning technologies, in which I treat educational processes and tools (including pedagogies) as technologies.