According to the notice of the General Office of the State Council forwarding the opinions of the Central Organization Establishment Committee, the Ministry of Education and the Ministry of Finance on formulating the standards for the establishment of teaching staff in primary and secondary schools:

1. The teacher-student ratio of urban primary schools is 1: 19.

2. The teacher-student ratio of county primary schools is 1: 2 1.

3. The teacher-student ratio of rural primary schools is 1∶23.

"teacher-student ratio"

It refers to the proportion of full-time teachers and students in colleges and universities, and "double-qualified" refers to the proportion of "double-qualified" teachers (teachers with both theoretical and practical teaching abilities) among full-time teachers. Because teachers are in an important position in vocational colleges, the two data can not only reflect the teaching achievements of vocational schools, but also be used as an important indicator to measure the quality of running vocational schools.