Techsmith.com recommends having the students hear the lecture at home, then do the homework in class. In this model, the teacher prepares a 5 minute lecture using a Flipcam that the students watch at home. Class time is used to teach. Since all students at Muscatine will have a computer, this might be a strategy. A pdf is here.
A Flipcam is easy to use. Just shoot the video and plug the Flipcam into your USB port. The Flipcam is about the size of an index card and fits neatly into your pocket. Of course, newer computers and digital phones now have a camera for recording.