What does a silver-haired teacher mean?

This word means an old educator who has retired, has a sunny mind and loves education.

"Silver-aged teachers" are teachers employed by rural compulsory education schools to undertake educational and teaching tasks.

The "Silver Age Lecture Hall" plan is organized and implemented by the Ministry of Education, making full use of the superior resources of retired teachers to further improve the quality of rural education. The plan openly recruits a group of outstanding retired principals, teaching researchers and senior teachers to give lectures in rural compulsory education schools.