Abstract: With the emerging technology of education, a teaching method, uniting the traditional classroom, the online classroom, the rain classroom and the flipped classroom, is discussed in this paper. This teaching method of the "Four-Classroom Integration" and assessment model are used in the course of theoretical mechanics in order to improve the classroom teaching effectiveness. Good teaching results are obtained according to the data of the final exam. This method provides a way of the teaching reform of the contemporary theoretical mechanics classroom.