http://classtechtips.com/2013/04/29/edit-student-work-on-ipads/
http://www.nielsen.com/us/en/newswire/2013/a-computer-in-every-classroom-and-a-tablet-in-every-backpack.html
Papet port note
https://www.youtube.com/watch?v=6Yu1Fg4xu9E&feature=youtube_gdata_player