For your study activity, you can now head in to the Week 2 Learning Module.  The central study tool is the concept guide for chapter 3.  From it you will branch out to - the Ch. 3 mini-quiz
 - the iTunes U podcast
 - discussion areas
 - etc.
 
Discussion areas are quite helpful, and you can look at them as virtual study partners. In fact, my two TAs and I always scan the discussions and add in some tips and coaching to help you along. Works nicely.