Senior High School Mathematics Unit 202 1 Teaching Design In September, Guangxi launched the new curriculum reform in an all-round way. According to the teaching suggestion of senior high school mathematics curriculum standard, the teaching goal of the classroom should highlight the core quality of mathematics. Professor Qin of Guangxi Normal University put forward the concept of large unit in 1995, that is, combining several teaching units into a larger unit, which can better reflect the systematicness and integrity and enrich and expand the connotation of the unit.