Textbooks are teaching books written in accordance with the curriculum standards, which systematically reflect the subject content and reflect the curriculum standards. Different from ordinary books, it is usually divided into volumes, units or chapters according to academic year or semester. It is mainly composed of content, text, exercises, experiments, charts, notes and appendices, and the text is the main part of the textbook.
With the development of science and technology and the modernization of teaching methods, the carriers of teaching content are also diversified. In addition to teaching materials, there are various instructions and supplementary reading materials; Reference books, wall charts, charts and other teaching AIDS, teaching program software packages; Slides, movies, audio-visual discs, etc.
In addition, textbook editors should properly handle the relationship between ideology and science, viewpoints and materials, theory and practice, breadth and depth of knowledge and skills, and basic knowledge and new achievements of contemporary science. Teaching materials are student-oriented, pay attention to students' interests, needs and abilities, emphasize students' experience as the starting point of teaching material organization, and gradually expand the content scope of teaching materials.