the head-teacher of the class

基本解释

With an average class size of 100, "students cannot get individual attention" and teacher training is a "total blank," says Zheng Wenguang, head of the higher-education department.
内蒙古科技大学高等教育研究所所长郑文光称“学生无法得到个体关注”，并称教师培训“一片空白”。
A head-teacher is the educator, organizer and leader of a class. Not only the quality of his work decides students'well-growing in body and mind, but also affects the whole administration.
班主任是班集体的教育者、组织者和领导者，班主任工作的质量不仅决定着学生身心的健康成长，也影响着学校管理工作的大局。