Apple TVs are designed and marketed for the home entertainment market, but they can be very useful in the classroom. Anything on the screen of an Apple device such as an iPad, an iPhone, or a MacBook, can be sent wirelessly to the projector via the Apple TV device. The sound signal is also sent to the projection speakers. It uses Apple’s “Airplay” protocol to connect wirelessly to other Apple products. If you have an Apple device that is on the same wireless network as the Apple TV device (the employee network), you can mirror your screen onto the projector and show presentations, show web sites, show videos, demonstrate apps and other software, etc.