All right. Heng 'an No.1 Middle School is located in Heng 'an New District, Datong City, Shanxi Province. It is a complete middle school and a supporting middle school for two shantytown renovation projects. It is managed by Datong Mining Area Education Bureau. The school covers an area of 150 mu, with a building area of136,000 square meters. Wang Shufang, party member, middle school teacher, engaged in mathematics teaching 18 years. He takes students seriously, concentrates on teaching, prepares lessons carefully, delves into textbooks and keeps learning. It has been highly recognized by students, parents, teachers and school leaders.