Around 15 days: It is so seldom that a child in Austria will have seen the inside of a school between mid-March and early September. A certificate for the alternative home schooling can hardly be issued: The commitment of students, teachers and parents varies too much between highly motivated, overwhelmed and disinterested. According to Unesco, nearly 1,6 billion schoolchildren and students around the world were faced with closed educational institutions in April. In June there were still a billion people affected. In poorer regions of the world in particular, the suspension of face-to-face teaching can be fatal: for example, children no longer receive free meals, and substitute lessons via the Internet or radio often fail when there is electricity. The willingness to send children - especially daughters - back to school is also likely to decrease, especially when school fees are due. But because development is not possible without education, the education system itself has to go back to school: and learn how to teach despite the crisis.