According to the description in the article "Backward Performance of Schools", we can see that the backward performance of schools in China at that time was mainly reflected in the following aspects:
1. Backward educational methods: Mr. Lu Xun mentioned the problem of educational methods. Teachers in schools mainly focus on memorization and rote memorization, ignoring the cultivation of students' thinking ability and creativity. They pay too much attention to cramming education and lack heuristic teaching methods.
2. The course content is outdated: Mr. Lu Xun talked about the content of the textbook. He mentioned that most of the textbooks are out of date and have not kept pace with the times. Students only recite textbooks mechanically, and can't really understand the connotation and practical application of knowledge.
3. Poor school facilities: Mr. Lu Xun mentioned that the environmental conditions of the school are very poor, the classrooms are dilapidated, and the teaching equipment and books are not enough, so it is difficult for students to study in such an environment.
To sum up, Mr. Lu Xun described the backwardness of school education in China at that time according to the performance of school backwardness in Morning Flowers and Evening Picks. This backwardness is manifested in backward education methods, outdated curriculum content and poor school facilities. These problems showed the deficiency of education in China at that time and the places that needed improvement. Now, we have made great progress in the field of education, constantly promoting modern educational methods and contents, providing better learning environment and facilities to meet students' more diverse learning needs.