Changzhou five-level echelon is evaluated once every few years.

Changzhou five-level echelon is evaluated every two years. According to the relevant public information, the backbone teachers of the five-level echelon in Changzhou are selected every two years and held every autumn. It is an important measure to select the five-level echelon from five categories: excellent reserve, teaching experts, demonstration teachers, academic leaders and high-end teachers.