To give children and youth a National Socialist upbringing, the Nazi regime sought to “coordinate” the school system [Gleichschaltung] and to bring instruction into line with their ideology. The party’s National Socialist Teachers’ Association [Nationalsozialistischer Lehrerbund or NSBS] worked to steer the political views of teachers through compulsory continuing education courses and events that informed teachers about the desired ideological content of school instruction. Books and lesson plans for subjects such as German, history, and biology were increasingly adapted to the National Socialists’ racial-biological conception of the world. Athletic activity assumed a central place in the school day.