Zhang Xiaoying, female, middle school mathematics teacher, graduated from Northeast Normal University in 1984 with a bachelor's degree。Over the past 30 years, he has been engaged in the education and teaching of senior high schools, and for many years, he has been engaged in the class teacher and mathematics teaching, competition counseling and student management of the one-stop experimental class of Tsinghua High School. The students under his guidance have won the first prize in national and Beijing competitions for many times, and the classes he has led have been rated as Beijing Excellent class Collective。Many educational teaching papers and open courses have won various awards or been published in related teaching publications。He has been awarded as the advanced worker of Tsinghua University, the excellent class teacher of Beijing Forbidden Cup, and the March 8 Red flag bearer of Haidian District。Currently, he is the director of the Senior Two Division of Tsinghua Affiliated High School。