We've got a new little tool that alleviates two of the problems with just putting a videocamera at the back of the room:
- Audio... if the camera is at the back of the room, the audio often picks up way too much noise from the students. I realize that students are our raison d'etre, but when you're focusing on improving you and your teaching, you want to hear what you are saying (reflecting on what your students are doing is a whole other issue!)
- Movement... if you're doing teaching right, you're not standing in one place. A stationary camera, even with a wide angle lens, often doesn't capture you as you move around the classroom. You could bring a camera operator in but then you add a whole new dynamic to the classroom -- we all know what happens to the students when there's someone new in their space! Plus, imposing on someone else's time just to turn a camera isn't really efficient.
So technology to the rescue! The Swivl camera base http://www.swivl.com/ will take your phone or tablet and connect it to a base that swivels automatically with you as you move around the classroom. It does it by using a small clip-on (or lanyard-ed) microphone, so as it tracks you it is also wirelessly recording you. The quality of the audio is amazing and, so long as you don't turn your back to the camera and walk away, the base tracks you around the room (of course, once you face the camera again, it swivels to find you).
It's a little expensive for individuals (200$) but for a department or school that's interested in improving teaching via reflection, I think it's invaluable. Just not having to have a second person to run the camera is huge -- and since it's initially stored on their personal device means it begins the conversation under their control (teachers are often leery of others seeing them teach, even if it is to offer constructive suggestions).
We've also used it for student presentations, again to improve the audio and follow the student with out a camera operator, but more on that later.