I have a dream that a class will start with a laptop cart being rolled into a classroom, the students will all grab a machine and be automatically signed in with a generic local "student" user account, and the teacher will take out their iPad and open the Classroom iOS app, tap the class "Cart A", and see a list of all the computers and have the option to tap the Screens button to view the screens of all 26 laptops simultaneously from the iPad.

I get the impression that this is technically feasible with the proper things set up on the backend but in actual practice, we haven't found a reliable way to allow the iPad to view the Mac screen. It has worked briefly and intermittently but it's never been reproducible. I realize one solution would be to have the teacher create an ad hoc class every time and instructor the students to manually join the new class in System Preferences but come on, let's be serious here...

Has anyone been able to do anything resembling this? It just seems like this is a bleeding-edge feature that hasn't quite been ironed out yet.