iTunes U is an interactive app where teachers can build courses or utilize courses that have already been created by other users. This app has courses in just about every subject imaginable. As a teacher, this could be an invaluable resource to share with students.
How it works
iTunes U includes courses in just about every subject. Students can download the free app onto the thier iPads and use these free courses to suplement and enrich what is being taught in the classroom. The app itself is fairly easy to navigate, however as with any user created content, the teacher must screen the content to make sure it is what the students actually need to know. Teachers can also create content for students to work through on their own.