Huang of Chengmai County Central School, through this period of online study, I listened to the wonderful lectures of educational experts and appreciated their humorous educational style and advanced educational ideas. I also had an exchange with the excellent teachers in the class, which not only strengthened the study of theory and professional knowledge, but also discussed the problems with the teachers in the class. I think improving the training ability and function of backbone teachers should be carried out from the following aspects: First, actively participate in various learning activities. The ancients said: learning without thinking is useless, and thinking without learning is dangerous. Teachers and scholars also. As a backbone teacher, we should first read more books, turn reading and thinking into a habit and a fashion, and be a teacher with basic skills. As the saying goes, students want a glass of water and teachers want a bucket of water. Therefore, as backbone teachers, they should actively study, constantly expand their knowledge, improve their cultural literacy and absorb advanced educational theories to improve their education and teaching level. Second, set an example for peers and students. Key teachers must set an example, demonstrate their behavior, love their careers and students, regard students and careers as the continuation of their lives, set an example in their daily work, be conscientious, diligent and strict with themselves. Be kind and patient with students. Teachers must do what students are asked to do, which is called setting an example. Third, actively reflect on discussion teaching. As a backbone teacher, every time you finish teaching a content, you should know how to reflect on the advantages and disadvantages of your own teaching, find the advantages and continue to carry forward, find the disadvantages, find the ways to improve in the future, and write the teaching reflection. In teaching life, we should continue to discuss teaching. When discussing, pay attention to colleagues' suggestions, listen to others' good opinions and constantly improve your teaching. Besides, we should also know how to evaluate others, actively participate in discussions and put forward our own valuable opinions. Only in this way can we learn by action, act in research and improve the teaching level. Fourth, actively take demonstration classes to improve teaching art. Key teachers should actively give good demonstration classes. Because every demonstration class, the teacher will pay special attention to preparing lessons and spend a lot of energy. In class, if you play well, you can consciously accumulate experience, cultivate your ability, effectively improve your ability to control classroom teaching, and effectively demonstrate and lead. Only in this way can we become truly outstanding backbone teachers. The working attitude and teaching level of backbone teachers play an exemplary role in the unit, which can be an example for everyone to learn and affect everyone in the group. Therefore, every move of backbone teachers should play an exemplary role in all parts of the unit. We must be serious and responsible in our daily work, be strict with ourselves, be proactive, never tire of learning, never tire of teaching, and be a good example for other teachers.