The new century textbooks for piloting program by Beijing Normal University Press have two characteristics in dealing with functions. One is to introduce the contents early.
北师大新世纪版数学实验教材对函数内容的处理，一是引入较早，从七年级下册开始，一是突出了函数是刻画现实世界中变量相依关系的数学模型的思想。
What textbooks of higher education in China are needed in the 21century is discussed in the light of the new needs of social economic development in the new century.
从21世纪的社会特征和人才需求出发，提出了高校教材建设的发展趋势；
What textbooks of higher education in China are needed in the 21century is discussed in the light of the new needs of social economic development in the new century.
从21世纪的社会特征和人才需求出发，提出了高校教材建设的发展趋势；
应用推荐