I think there is a burgeoning field of resources affecting the way that educators interact with their classes. In terms of class management there are many apps that deal with organizational details of being a teacher, from grading to internet content control. Rather than reaching for the Encyclopedia Brittanica, teachers and students have informational resources that stretch from history to math to science all available from apps. In physical education there are apps that relate to caloric intake, fat burning, pedometer readings etc. These could be available as a hands on way to visualize students' health