I'm a high school teacher and an app developer. I created a classroom instruction app that is both unique and unprecedented. It is called Oncore, and it creates fair, focused and feedback rich classrooms integrated within a teacher's existing workflow. Go to http://onco.re to see a video of what Oncore can do for you. FSD teachers: Come to my breakout session and then refer three pals to download Oncore and I'll upgrade you to Oncore Pro!