Last week I started my physics class with Relativity in Week One (pdf). A short unit by E.R. Huggins. I really like this unit, but it is totally contrary to how I usually teach as I had to lecture the whole week. This year I have four sections of Physics, in the past I've only had three. That extra section makes a big difference. My experience from last week reinforces my plans to not lecture in class this year.
So, this year I will be lecturing on video and students will be able to watch on their own time. This will leave more time in school for working problems. Basically, those tasks that may have been homework in the past will now be class work. So, when a student gets stuck they can ask me for help rather than just copying off a classmate. In addition, this may allow me to sneak in a few more labs.
The videos can be streamed from the web from either Blip.tv or the archive.org. They can also be downloaded via iTunes and played on home computers or portable media players. If needed, I will burn a small number of DVDs of my videos for students who might not have a computer at home.
So far I've been using TipCam to do screen captures and as needed I also use a small Wacom tablet I bought on ebay to write on the screen. I'll be listing all the videos on my FLOSScience site as I create them. Feel free to use them with your own classes or just use them as a source of inspiration.
In an effort to keep my life easy, my goal is to do my videos in one take. Basically, this means they will likely be a little rough at times. Below is the first part of my lecture from chapter 2 of our text book (modeling one dimensional uniform motion).