Beijing normal university edition. According to the information of the fifth grade textbooks in Shenzhen, the first volume of Shenzhen mathematics textbooks uses Beijing Normal University Edition. Textbooks, also known as textbooks, are teaching books that are written according to curriculum standards and systematically reflect the subject content. Textbooks are the concretization of curriculum standards, which are different from ordinary books. They are usually divided into volumes, units or chapters according to the academic year or semester.