Here are a few details about the Apple TV in your classroom:
-For most classrooms, the Apple TV is connected to the Staff2016 Wi-Fi.
-The Apple TV is plugged into Computer 2 on your projector.
-Make sure your projector Source is set to Computer 2. This can be changed with your projector remote.
To CONNECT using a laptop:
(Method 1)
Click on the

Select the Apple TV that is in your room.

-Type in the 4-digit passcode that pops up on your screen.
-You should be connected now.
(Method 2)

Use the drop-down to select your Apple TV.

Type in the 4-Digit number shown on your projector.
You should be connected.
To Disconnect using either method, turn AirPlay off.