[the next day] It went really well! :) And, I had a great time. I talked about what flipping is, showed a 30 second time-lapse of an 87 minute traditional class, showed portions of some Flipping Physics videos, assailed them with math, showed a compilation of my kids helping out in the videos, set up a green screen, filmed the kids and their teacher, edited that to a 1.5 minute video and showed them the video. All in 35 minutes. Nice eh?