Answer:
Hidden curriculum.
Step-by-step explanation:
Hidden curriculum are values, morals, norms and lessons learned and taught at schools outside the official curriculum.
Apart from learning, a school is a place where social interaction takes place. In order to keep the pupils under control, a set of norm, values or rules is imposed. These are to teach the pupils to obey authority but also to teach them how to behave in a society. The unspoken academic, social and cultural messages influence the pupils' perception of one another and contribute to better understanding between them.
This curriculum is called hidden because it is not acknowledged nor examined nor graded.