Zhou Jianjun, male, Han ethnicity. Born in June 1975. Member of the CPC. Graduated from Central China Normal University (CCNU) in 1997, he began his teaching career at Tsinghua University High School.Zhou serves as a senior high school mathematics teacher and has held several leadership roles, including the leader of the grade in Grade 2016 and Grade 2019, the deputy leader of the grade in Grade 2020, and secretary of the joint Party branch of the Mathematics Technical Teaching and Research Group. In July 2023, he was appointed as the Vice Principal of Tsinghua University High School. Having always been involved in practical teaching, Zhou has assumed roles as a class advisor or a grade leader while also taking charge of mathematics competitions and mathematical modeling guidance. He has published several articles in national core education and teaching journals. Many of his papers have won first prizes at both the national and Beijing municipal levels, and he has edited or co-edited three monographs. His honorary titles include Role Model of Education in Beijing, Key Teacher in Beijing, Leader in Academic Subjects in Beijing, First Prize of the Beijing Zijin Cup for Outstanding Class Advisor, Advanced Worker of Tsinghua University, Outstanding CPC Member of Tsinghua University, Outstanding Ideological and Political Staff of Tsinghua University, Outstanding Class Advisor in Haidian District, and Exemplary "Four Haves" Teacher (an award given to those who exemplify the four virtues: belief in ideals, strong moral sense, sound knowledge, and a loving heart) in Haidian District.