Compilation teacher: an extremely stable one, enjoying more benefits from the unit, basically not making big mistakes and not being fired. And in general, the unit has no right to dismiss, and it must be decided by the superior unit. Wages are calculated by the local personnel and labor bureau. The unit can't decide its own salary.
Teacher appointment system is actually divided into long-term and short-term. Generally speaking, the treatment is not as good as the formal preparation, and the welfare is not as good as the formal preparation. The general unit leader can directly terminate the contract with him. The salary is basically decided by the unit after reporting to the superior.