1, Diandian is a relatively basic teaching material for educational guidance. The content is arranged according to the teaching material, emphasizing the consolidation of basic knowledge and the training of basic skills. The questions in the middle of the textbook are moderately difficult, which are suitable for most students, especially those with weak foundation, and can help them gradually establish a knowledge system and improve their academic performance. In addition, the answers in the middle of the book are analyzed in detail, which is convenient for students to check and correct themselves.

2. The experimental class pays more attention to the cultivation and promotion of students' comprehensive ability. The content not only covers the knowledge points of the textbook, but also introduces some expanding contents, aiming at cultivating students' innovative thinking and practical ability. The topic of the experimental class is relatively difficult and challenging, which is suitable for students with good academic performance and certain learning potential. By solving the problems in the experimental class, students can better exercise their thinking ability and problem-solving ability.