I guess when you?re 76 years old and on the verge of retirement after more than 50 years in the same field, there?s really no need to pull your punches. Madison East High School biology teacher Paul du Vair proved that in a Sunday story in this newspaper, where he says the ?greatest failure in education? is how little experience professors of education have in the classroom. ?They have no idea what goes on in our schools,? he said. … No doubt plenty of education professors, especially researchers, at UW-Madison lack teaching experience and haven?t logged significant time in the classroom. But plenty of them have, too.