Sun Yiqi: 1982 graduated from the Mathematics Department of Zhejiang Normal University. At present, he is the principal of Quzhou No.1 Middle School, a professor-level senior teacher in middle school, a special-grade teacher in Zhejiang Province, a member of the Eighth Association for Science and Technology in Zhejiang Province, a director of the Zhejiang Middle School Mathematics Research Association, a director of the Zhejiang Special-grade Teachers Association, and a chairman of the Quzhou Mathematics Society. He was once the first rookie in the teaching field, the first and second famous teacher in Quzhou City, and an advanced individual in education and scientific research in Quzhou City, Zhejiang Province.