二次函数是初中教学中的一个重、难点知识,但是二次函数的学习非常重要。为了有效帮助学生学好二次函数知识,就二次函数的最值做了探讨,一方面是为了有效加强学生对二次函数的理解,提高学生的学习效率,另一方面也可以培养学生的探究意识,让学生养成良好的学习习惯。 Quadratic function is a heavy, difficult knowledge in junior high school teaching, but the study of quadratic function is very important. In order to effectively help students to learn the knowledge of quadratic functions, the value of the quadratic function is discussed. On the one hand, in order to effectively enhance students’ understanding of quadratic functions and improve students’ learning efficiency, on the other hand, students’ inquiry can also be developed Consciousness, so that students develop good learning habits.