People Education Edition, People Education Edition, Beijing Normal University Edition, China Normal University Edition, Zhejiang Education Edition, Beijing Curriculum Reform Edition (Beijing Press, Beijing Education Press).

For example, there is a "chapter on the shortest distance" in the third grade of the People's Education Edition, but not in the Beijing Curriculum Reform Edition, which is one of the key points of the Beijing senior high school entrance examination. The Beijing Curriculum Reform Edition has two chapters, namely "Some Ideas for Solving Mathematical Problems" and "Some Methods for Exploring Mathematical Problems", which are rich in content and important in position. Other editions are either absent, few or unimportant in position.

The edition of Beijing Normal University is used less, while the edition of People's Education is used more. Generally, each district and county uses one edition. For example, Fengtai District uniformly uses the version of Beijing curriculum reform.

Don't worry, the teacher will make up for the shortcomings and omissions in the textbook. After all, aiming at the senior high school entrance examination.