Is the recruitment position of teachers in Tongzhou District Central Kindergarten in Beijing supernumerary?

The teachers of the central kindergarten in Tongzhou District of Beijing belong to the posts of district management schools and career cadres. School employment belongs to signing a labor contract with the school. The corresponding law is the labor contract law, which is compiled in the province for the record. The corresponding law is the personnel management regulations of public institutions. Teachers who are not in the establishment are temporary or contract workers, generally called substitute teachers or hired teachers.