I recently discovered iTunesU and all the educational TV channels available. It's absolutely fantastic. I've been watching lots of TV programs from e-learning UK, TeachersTV, and others that are really exciting! My favourite one right now is TEACHING AND LEARNING SCOTLAND! There is lots on cognitive development and teahcing students to think about thinking and about their learning. Empowering them so that they can understand and reflect and think about what works best for them in the classroom. Really cool stuff!
