What makes a school formal organization

A school has the following formal structure:

The school board acts as an agent of wider community. Frankly speaking, the school is a complex web of social interactions with various types of interactions taking place simultaneously, each affecting the whole, and having at least an indirect influence upon the child.

School organizations, just as other organizations, have formally stated goals, criteria for membership, a hierarchy of offices, and a number of informal goals, such as friendship and sharing of interests.

I hope it's helpful!

its not minor, got it wrong.