Today, 39 years ago, on October 2, 1986 (August 29, 1986), the National Board of Education issued the "Certificate of Evaluation of Teachers in Primary and Secondary Schools".On October 2, 1986, the People's Daily that the National Board of Education issued the "Certificate of Evaluation of Teachers in Primary and Secondary Schools" and began to be implemented nationally.The "Certificate" stipulates that only those who have a qualified academic qualification or a qualified certificate can be taught.In order to build a qualified team of teachers in secondary and secondary schools, it is better to popularize nine-year compulsory education services.