每次考试结束后,学生总是议论着,“函数的定义我也懂,就是不知道错在哪里”“函数的值域的几种求解策略,我也记得很清楚,但具体题目又不会解”“函数的零点存在定理我们都会背诵,但稍微复杂一点的零点问题又不会做了”“函数的概念、性质蛮简单的,但就是想不到怎样才能综合运用”“函数图象的平移变换我也清楚,但就是不会做 At the end of each test, the students are always talking about, ”I understand the definition of the function, I do not know where the error is “ ” The range of the function of several solutions, I also remember very clearly, but the specific topic We won’t be able to solve the zero existence theorem of the “” function. We will recite it, but the slightly complicated zero problem will not do the concept and nature of the “” function. However, we can’t think of how to use it comprehensively. The translation of the “” function image is also clear to me, but it does not