So I messed up this first stage with my class. I started with the concept of innovation and shared some of the stuff I had done: edcampHOME, #CAedchat etc... and then I dropped that Daniel Burnham quote on them: 
Make no little plans; they have no magic to stir men's blood and probably themselves will not be realized. Make big plans; aim high in hope and work, remembering that a noble, logical diagram once recorded will not die, but long after we are gone be a living thing, asserting itself with ever-growing insistence. Remember that our sons and our grandsons are going to do things that would stagger us. Let your watchword be order and your beacon beauty.
Well... you know that was my motto for the Chicago Google Teacher Academy so it might as well be my class motto, right? Big mistake. I set the bar so high that kids got kinda freaked out and I had to scale things back a little. 
So as you can see I got stuck on the whole "What If?" question without really nailing down the concept of personal and community needs. I'll let Sean post his thoughts below.