The answer is that the Beijing Normal University version is a little more difficult. What are the Soviet education editions? Suzhou, Jiangsu, Hangzhou and other regions use the Soviet version, and Beijing, Shanghai and other regions use the Beijing Normal University version. The content of Beijing Normal University Edition is a little more flexible, but the content of the two versions is almost the same, and sometimes the order changes, but the ultimate goal of both versions is to transfer knowledge to students.