My 11yo son's in-person 5th grade class of 20 people is back at home now. One positive case in their classroom who tested positive last Tuesday, and the school was notified on Wednesday. So the entire class (and teacher) are all quarantined and back at home online now, for 14 days starting last Wednesday.
The school wasn't allowed to tell me who it was, but my son and all the kids knew, since there was one student who'd been out of class since the prior Friday.
So that Friday was his last possible direct contact, he came home on Wednesday, and I had him tested on Thursday. It came up negative, and he's had zero symptoms. Nobody else in the class including the teacher have had any symptoms, either, though I don't know if anyone else has been tested.
Anyway, one more week at home, then they'll all be back in school with their 14 days behind them.
That's going to be our reality for a while.