a pupil subculuture is a group of students who share similar values and behaviours.
Lacey's (1970) concept of differentiation and polarisation can be used to explain how pupil subcultures develop
differentiation
the process of teachers catergorising students according to how well they percieve their ability, attitude and behaviour.
streaming is a form of differentiation, those deemed more able were given high status by being placed in a high stream and those viewed as less stable were put in lower sets
polarisation
the process where students respond to streaming by moving towards one of the two opposite poles or extremes
In lacey's study of hightownboys grammar school he found that streaming polarised boys into a pro school and an anti school subculture