In Soviet Union it was the first stage: the teacher was choosing the ones, who are predisposed to this kind of behavior. Than at later stages (starting from ye

In Soviet Union it was the first stage: the teacher was choosing the ones, who are predisposed to this kind of behavior. Than at later stages (starting from year five, I think) teachers were using bullies to exert control on smarter kids, not unlike prison/camp (the actual source of the theoretical basis for Soviet education system) administrations were using organized crime to control inmates.