The Khan Academy has just released a free app for the iPad. For people unfamiliar with the Khan Academy, it is a website featuring over 2500 free educational videos about a variety of topics including maths, science, art and much more. Salman Khan, the site’s author delivered a superb TED talk last year explaining his vision. Many people who are trying out a Flipped Classroom teaching style are using the Khan videos for homeworks.
The app is good. It is easy to navigate to any video in the Khan collection and logging in with your Khan account details allows you to save your progress. Overall the user interface is well designed and intuitive.