The director of grade three in Guangshan is Hu Guanghai. Guangshan Sangao is a senior middle school in Guangshan County. Its grade director is the person in charge of the school's management of grade affairs, and is responsible for managing and guiding the education and teaching of this grade. Hu Guanghai is the grade director of Guangshan No.3 High School. His specific responsibilities include making the education and teaching plan of this grade, organizing the examination and evaluation of this grade, and coordinating the relationship between classes of this grade.