1, Wang Chaoxia's paper is more comprehensive than the experimental class, and Wang Chaoxia's paper is somewhat difficult. It is very helpful for children to finish the wrong questions carefully and sort them out. The loose-leaf knowledge points in Haidian experimental class are chaotic, which is not conducive to learning.

2. Wang Chaoxia is a course that focuses on improving students' learning ability. Mainly through explanation and practice to improve students' learning ability. The loose-leaf paper of Haidian experimental class is not friendly to young students and is not conducive to finishing.