I love my Apple TV and even brought it into my classroom to try out last year. My goal was to use the mirroring feature to project my iPad screen without being tethered to the projector. A great alternative to using an Apple TV is Reflector which can be downloaded to your laptop. It’s super easy to use and perfect for an iPad classroom!
When your computer is hooked up to a projector and your iPad is on the same wireless network you can simply mirror your iPad screen using the same AirPlay technology on an Apple TV. A very cool feature is the ability to mirror more than one iPad screen. You can show multiple iPad screens of student work, or in a collaborative team teaching classroom, both teachers can show off their iPad screen to the class at the same time.
The download for Relfector isn’t free – like most of my tips – but I definitely think it’s worth it!