AppInventor.org is a site for learning and teaching how to program mobile apps with MIT's App Inventor. These tutorials are refined versions of the tutorials that have been on the Google and MIT App Inventor sites. fromAppinventor.org is designed for use by teachers. The teaching materials here can be used as a basis for middle school, high school, and college courses. The course-in-a-box, which is based on David Wolber's USF courses, provides structure and material to get a new course up and running within days.