Private schools have always had more flexibility, and usually more money, but never has that disparity made a bigger difference than now. Public schools plan to open not at all or just a few days a week, while many neighboring private schools are opening full time. Private schools may reverse course if there are outbreaks in their communities, and governors could still shut down all schools if they determine that local infection rates call for it. Some families and teachers won’t feel comfortable returning. But the ways in which private schools are reopening show it can be done with creative ideas—and the money to carry them out.