Teachers need training not because they are unqualified, but because they need to learn, think, grow and develop. Through training, teachers' thoughts can be touched, teachers' experience can be sublimated and the shortcomings in teaching can be improved. Teachers' professional development is a lifelong process, and the era of "teaching once and benefiting for life" has passed. School-based training is a variety of practical training activities arranged by the school under the guidance of educational experts, focusing on the problems existing in school education and teaching, the predetermined goals and development plans of the school, and aiming at meeting the professional development needs of school teachers. On the one hand, its function is to enable teachers to acquire the motivation and ability of active learning and continuous self-development through training, and to promote the professional development of school teachers. On the other hand, it is necessary to promote the overall development of the school through training and establish a better and distinctive image of the school. With the advancement of the new curriculum reform, school-based training has attracted the attention of more experts and principals.

The century-long plan is education-oriented, and the education plan is teacher-oriented. The key to school development is teachers. The significance of school-based training lies in improving the quality of education and promoting the development of schools by improving the comprehensive quality of teachers. School-based training helps to improve teachers' comprehensive quality, which is mainly reflected in four aspects:

1, from the perspective of values. Influenced by exam-oriented education, teachers have a strong sense of quality, and "pursuing high marks" has become the only criterion for teachers to measure their outlook on life and values. Based on China's socialist nature and teachers' professional characteristics, school-based training focuses on the needs of cultivating innovative talents, cultivating teachers' professional spirit, enhancing teachers' professional concept, and changing teachers' outlook on life and values from "professional" to "professional".

2. From the perspective of education. Influenced by exam-oriented education, teachers' teaching aims at "taking exams", emphasizing "teaching" and neglecting "educating people"; Pay more attention to "teaching materials" than "students"; School-based training that emphasizes "classroom" over "life" is to cultivate and improve teachers' level and ability to implement quality education according to the requirements of quality education. It requires teachers to do everything for students, all for students and all for students, and urges teachers to change their educational ideas and concepts from "taking exams" to "educating people".

3. From the perspective of capacity structure. Influenced by exam-oriented education, teachers develop towards "single type" in building their own knowledge and ability structure, ignoring the infiltration of other disciplines into their own teaching; Some teachers think that "the knowledge gained from normal education is useful for life". According to the requirements of cultivating innovative talents in the era of knowledge economy, school-based training breaks teachers' traditional ideas, broadens teachers' subject horizons, enriches teachers' subject knowledge, and changes teachers' knowledge and ability structure from "single type" to "compound type".

4. From the way of thinking. The teaching mode of exam-oriented education makes teachers become empiricists and lack the ability of education and teaching research. School-based training is to update teachers' educational concept, improve teachers' theoretical level, strengthen teachers' scientific research ability and promote teachers to change their thinking mode and working mode from "experience" to "scientific research" according to the requirements of modern educational concept, educational theory and new curriculum spirit.

In short, understanding the significance of school-based training from the perspective of "improving teachers' comprehensive quality" will help us to clarify two points: first, the times and necessity of school-based training; The second is the importance of improving teachers' comprehensive quality in promoting school development. Schools should conscientiously organize and implement school-based training, strive to improve teachers' comprehensive quality and school-running level, and let "school-based" enter schools and be close to teachers, which will become the basic project of teachers' continuing education.