I think the promotion for the class should be fairly clear.
If it is to be a "Learn to make a quilt class" - then that's what should be taught.
If it is a "Make some fun little projects - such as pot holders, mug rugs, etc " - then that's what should be taught.
Have everyone doing more or less the same thing at the same time. If the people are complete beginners, it's helpful to have everyone on the same page. Or teach as if they were!
I prefer to have a few things taught thoroughly and well - than a smattering of many things - that I never quite caught on to any of them. I get frustrated when I "almost got it" - but it went too fast to really have gotten it.
You may want to have a back-up plan if you get a group of quick-learners to fill up the last week of classes.