I have not been this excited about technology in the classroom since I discovered automated grading on @Flubaroo five years ago.
Augmented reality is about to take us to the next level in education. Why? Because it's cool and fresh and has limitless potential across the curriculum. Imagine this tech in a science classroom. Students could put the entire digestive system on their body and then point out the parts. What about a tour of Jupiter? For mathematics, teachers could make equations life size and ask students to explain each section by standing in it and pointing. History? What about interviewing a historic figure by having a student hiding behind the image doing a ventriloquist act with the picture?
So. Many. Applications.
Here's an instructional video showing how to use Keynote to get rid of backgrounds with Instant Alpha made by @tearagon7, an Apple Distinguished Educator out of California. I found her examples on twitter during a wild search for ideas. This easy to follow tutorial has so much potential to revolutionize interactions with material. Check out her video and then see what she's going in her school on her website and in her e-book!