We have ran into a few issues with teachers iPads not seeing any AppleTVs. We have struggled to find a solution to this until now!
As soon as we turn off AirDrop on the teachers iPad, they are immediately able to see AppleTVs.
Not quiet sure why or what, but thought this might be worth sharing.
iPad 9th Generation and Apple TV 4K 3rd generation
Attach up to 5 files which will be available for other members to download.