Education and teaching includes both disciplines and majors, as well as education majors. The state has stipulated the academic standards of teachers and the necessary requirements for educational knowledge, educational ability and professional ethics. Pay attention to educational research paradigm and improve teaching practice. The successful path of classroom improvement is to combine the school's education and teaching reform, teachers' personal development and classroom improvement. Classroom diagnosis is an important way for teaching researchers in various disciplines to guide grass-roots teachers to realize classroom improvement, the main carrier for teacher trainers to promote teachers' professional development through school-based research, and the important content for researchers to pay attention to courses, classrooms and students to carry out educational research.