what+we'll+do+differently+next+time

here's a space to list the ideas that occur to us during the running of the first course
from jen: have an intro in the side bar and a 'week 0' for it. I think it would work best if the students could see week 1, 2, 3 etc at the top of their screen when they click on the side bar to go to it instead of our shining faces and the intro each week. (7/6/10)