Week 4 learning module is ready.

I just activated your Week 4 learning module. GO FOR IT. Here are a few extras in the learning module:

1. There is a link to the visual podcasting archive on my Physics server. If you have iTunes on your computer, you ought to be able to view the podcasts in your web browser. Otherwise, you can use iTunes directly, which is also good.
2. Mini-blurb about how to handle the GradeMark that I add to your mighty mighty two-sentence paper on TurnItIn.com -- look for the red apple icon. The apple is gray until your GradeMark is ready, and then it goes red. In the meantime, look over the blurb sheet.