The preliminary publicity and explanation work was not detailed enough. According to the inquiry of Inner Mongolia Education, the reason why Inner Mongolia changed the teaching materials is because the previous propaganda and explanation work was not detailed enough, and the reform of Chinese teaching materials in Mongolian primary and secondary schools is closely related to the current Mongolian language teaching. Chinese curriculum should be devoted to the formation and development of students' Chinese literacy, which is the basis for students to learn other courses well, and also the all-round and lifelong development of students.