The document discusses the qualities of a good mathematics textbook. It states that a good textbook should stimulate reflective thinking, present real learning situations, and not promote rote learning. It then lists several key qualities under physical features, author, content, organization, language, exercises, and general qualities. A good textbook needs qualified authors, age-appropriate language, accurate illustrations, well-graded exercises, and up-to-date content organized logically from simple to complex. While textbooks are important, good teachers are also needed to guide students' understanding of mathematics.