目前一般中学所用的高中代数课本里,关于二次函数的极大值或极小值的应用问题讲得很少,只是在复习题里提到一点(复习题三第16题)。这在贯彻党的教育方针上看来是不够的。因为在学习函数的基本概念时,学生已经初步认识到在我们研究自然现象和社会生活中的各种问题与工作时经常会遇到各种不同的 In current high school algebra textbooks used in general secondary schools, there are few problems with the use of maxima or minima for quadratic functions, but only one point in the review questions (question 16 of the third problem). This does not seem to be enough to implement the party’s education policy. Because in learning the basic concept of the function, students have initially realized that when we study various problems and work in natural phenomena and social life, we often encounter different kinds of