Female, born on March 11, 1961, Han nationality, member of the Communist Party of China。On December 25, 1998, he was recognized as a special grade mathematics teacher by Heilongjiang Provincial People's Government。In 2003, he was transferred from the No. 142 Middle School of Harbin, Heilongjiang Province to Tsinghua High School。In May 2010, he was re-recognized as a special grade mathematics teacher in Beijing by the Beijing Municipal Education Commission。He has won more than 30 honorary titles such as National Outstanding Teacher, Heilongjiang Province Backbone Teacher, Harbin City Backbone Teacher, Heilongjiang Excellent Teacher, Harbin City Model Worker and excellent class Teacher, Tsinghua High School Attached to Tsinghua University and Mizuho Award。

In recent years, Ms. Sun Xiaojia has been serving as the head teacher of the junior high School attached to Tsinghua University and the leader of the mathematics lesson preparation group. She has undertaken many tasks for the school and district-level education and teaching institutions, and has educated a batch of outstanding students。

Ms. Sun Xiaojia always loves teaching and education, and is conscientious and responsible to her students。With her hard work in exchange for a group of students after a group of excellent results, with their own wisdom to create excellent results again and again, with their love in exchange for a class of students love and respect。Her tireless efforts and hard work have been praised by colleagues and students, and won everyone's respect and love。

The class I led not only achieved excellent results, but also developed comprehensively, and was rated as "excellent class collective" every year.。In teaching, she makes in-depth research, takes students as the main body, and constantly adjusts her teaching methods to adapt to different types of students. With her simple explanation and systematic grasp of knowledge, she leads students into the magical kingdom of mathematics and explores the mystery of knowledge, which is deeply loved by students。Often in a variety of urban teaching teaching and research activities to exchange experience, won everyone's praise。

As a teacher in the new century，Ms. Sun Xiaojia can not only carry forward the rich experience accumulated in her long-term work practice，Also can pay attention to their own continuous development and improvement，Constantly improve their self-cultivation，Improve working methods，Improve the level of self-education and teaching，Make education and teaching your own career，Turn your enthusiasm for students into practical care and guidance。She develops the process of teaching and educating people into a process of continuous pursuit, constantly developing and improving her own education and teaching ability, and also improves her own value。Sun Xiaojia also undertook the task of tutoring young teachers, through their own example and sincere guidance, with their own experience and enthusiasm, without reservation to drive and promote the growth of a group of young teachers。