The central task of the school is "teaching", and teaching is the unremitting work center of Li Xinyuan Middle School. With the long-term efforts of teachers and students, junior high school and senior high school won the "Teaching Quality Excellence Award" issued by Chaoyang District Education Committee for 8 consecutive years. The average enrollment rate of college entrance examination is 95%, including 65% for undergraduates and 35% for key undergraduates. Comprehensive quality is in the forefront of middle schools in Chaoyang District. In 2003, the school still achieved a good result of the college entrance examination admission rate of 97.5%. The continuous improvement of teaching quality and teaching achievements comes from the innovative and enterprising work style of Li Xinyuan Middle School. Over the years, the teachers of this school have vigorously carried out teaching and scientific research activities, actively participated in the experimental research of more than ten teaching and scientific research topics at the national and municipal levels, and achieved fruitful results. More than 100 educational and teaching papers in this school won awards at all levels and were published in various journals. This school is "Advanced School of Modern Technology Network Education in Beijing", "Excellent School of Audio-visual Education in Basic Education System in Beijing", "TI Modern Mathematics and Physics Teaching Experimental School" and "Experimental School of Quality Education and Overall Reform of School Physical Education". Therefore, the school won the honorary titles of "Beijing Advanced Collective of Education and Scientific Research" and "Beijing Advanced Middle School of Basic Education and Scientific Research". The main teaching, scientific research and experimental topics of the school mainly include:

1, "Experiment and research on improving students' comprehensive quality through semi-closed management". Through a semi-closed way, the experiment tracked and managed students' morning exercises, breakfast, morning reading, extracurricular activities and evening self-study, and achieved remarkable results. The school also extended the experimental topics to the field of off-campus education such as family education and social education, and formed an integrated education network of "school-oriented, home-school cooperation". The "three-way intervention" measures for students, teachers and parents in the experiment have played a fruitful role in the healthy growth of junior high school students. During the "Ninth Five-Year Plan" period, the experiment won the Chaoyang District Education and Scientific Research Achievement Award, and the experimental effect was recognized by many aspects of society.

2. "Research on School-based Home-school Cooperation Model". On the basis of the construction of teachers' team, this topic pays attention to the construction of parents' team, and through the construction activities such as "learning family", parents' training project and education and teaching open week, activates educational resources, forms educational synergy and seeks the best effect of education.

3. "JIP" research. With the general strategy of "building students' subject, cultivating innovative spirit, improving practical ability, realizing overall optimization and promoting all-round development", this project has carried out long-term theoretical research and practical exploration on improving middle school students' learning quality, and achieved initial results.

4. "Comprehensive liberal arts teaching experiment". Through the comprehensive teaching of subjects, students can get the most effective study in a fixed study time. The experimental class also offered elective courses such as Art Appreciation, Oral English Training, Literature Reading and Creation, and organized second-class activities such as self-editing teaching materials, cultural visits and literary sketching, which effectively cultivated students' comprehensive quality. Students' literary reading has been obviously broadened, and their literary creation ability has a strong advantage. The exhibition of students' personal works and the school magazine "White Clouds in the Mountains" edited and published by this class have been well received by teachers and students, and many students' works have been published in national literary journals. The whole class took the exams of Chinese, English and Mathematics in advance, and the passing rate was 100%, and the excellent rate was 85%. It is the guiding ideology of our experimental project to mold personality cultivation with literary charm and stimulate students' subjective consciousness with "equality" and "sense of achievement". Experiments show that this idea has achieved initial results.

5. "Experimental research on comprehensive teaching of arts and sciences" in senior three. In order to meet the needs of educational reform, the school has carried out an experimental attempt of comprehensive teaching of subjects. Through the exchange of subject classroom teaching and the research and discussion of "comprehensive ability education", the experiment has formed a certain theoretical model and practical model.

6. "Hmm" research. This course aims to implement the educational method of mathematical methodology and improve students' quality in an all-round way. It is the core of this experiment to explore the characteristics and laws of mathematics itself, inspire students' thinking and carry out mathematical aesthetics. Textbooks are scripts, students are actors, and teachers are directors, forming a vivid mathematics classroom model in this school. Through the reform experiment, the level of school mathematics teaching has been improved year by year, and gratifying achievements have been made.

7. "Research on the Application of TI Graphic Calculator in Middle School Mathematics Innovation Education". This subject has made theoretical and practical achievements in improving the compilation of teaching materials, optimizing the teaching process, carrying out extracurricular activities, comprehensively improving students' quality, and cultivating students' innovative spirit and practical ability.

8. Practical Research on Teaching Reform of New Curriculum in Senior High School. According to the national curriculum reform plan and related requirements, the school has formulated the overall curriculum reform implementation plan for senior high schools, initiated the preliminary research and practical exploration of the new curriculum teaching based on "research learning", and opened the way for the full implementation of the new curriculum plan.