1, content breadth: The textbook resources of the textbook group are more abundant, including textbooks, teaching AIDS, examination papers and other resources of various subjects, covering almost all grades and difficulty levels. In contrast, the coverage of the complete solution of middle school textbooks is relatively small, and only the contents in the textbooks are systematically explained and sorted out.

2. Individualized learning: Textbooks help provide each student with a personalized learning plan, which can tailor the most suitable learning plan and teaching method for each student according to factors such as students' academic performance, intelligence level and learning style, so as to help each student better explore their potential. In contrast, middle school textbooks lack such customized learning tools and methods.