something that was going to happen. however, unc chose to reopen anyway. >> reporter: the apparent challenge facing some universities, when students return to campus, so do the parties. like this crowded offcampus gathering near north carolina state in raleigh. the university looking into the situation. and the administration at the university of north georgia warning students after scenes like this near campus. and now, an entire oklahoma state university sorority house in quarantine after nearly two dozen members tested positive. it's a wakeup call amid the debate about whether to reopen schools. abc news getting a first-hand look at how new york city plans to safely teach children in the pandemic. from these electrostatic sprayers to redesigned classrooms. when school starts for new york city public school students, they're going to notice two things that are very different from the moment they get into their classrooms. the first, less desks. just 11 in this one alone. and throughout the year, there's going to be at least two windows open. this is across the city and even