Veescope: Green Screen Images and Video

If you're looking for a free green screen app, check out Veescope! Currently it's only available in iTunes. There is a watermark on the video/picture but it's free!

If students have access to a Mac (desktop Mac or MacBook, not iPhone or iPad), iMovie also does green screen. 

Apple TV Settings for the Classroom

If you are interested in using an Apple TV along with your personal iPad, iPhone, iPod Touch or MacBook, please check out Apple TV Settings for the Classroom for lots of tips, tricks and things to be aware of.