1. Teaching staff: There are 238 teaching and administrative staff in the biology class of Zhangjiakou No.4 Middle School, and there are full-time teachers 170, including 52 senior teachers and 76 intermediate teachers. Its biology class has a team of professional teachers with rich teaching experience and dedication to their posts, while Zhangjiakou Zhengbo has four provincial excellent teachers and two provincial special-grade teachers, and its leading class is not as strong as the biology class in Zhangjiakou No.4 Middle School.

2. Teaching facilities Zhangjiakou No.4 Middle School has office buildings, art buildings, teaching buildings, experimental buildings, library buildings, canteens, student apartments and other facilities. The laboratory building covers an area of more than 400 square meters, and the physical and chemical laboratory covers an area of 1.2 square meters. The biology class in Zhangjiakou No.4 Middle School has perfect experimental teaching facilities, which provides a good environment for students to explore experimental truth. However, only the teaching building and library in Zhangjiakou Zhengbo have registered this facility.