笔者听了一节组内同仁开展的公开课:极大值与极小值,听后很受启发。下面笔者就“极大值与极小值”教学谈一些自己的想法和认识。1关于教学目标教师知识水平的高度决定学生知识水平的高度,教师“三个理解”的水平决定教学目标的制订,乃至影响教学效果。导数作为研究函数性质的重要手段,它对高中数学的学习有着举足轻重的作用,而函数极值 The author listened to an open class conducted by colleagues in the group: maximum and minimum, after listening to very inspired. The following author on the “maximum and minimum” teaching talk about some of their own ideas and understanding. About the Teaching Goal The teacher’s knowledge level determines the height of the student’s knowledge level. The level of the teacher’s “three comprehensions” determines the formulation of the teaching goal and even affects the teaching effect. Derivatives as an important means of studying the nature of the function, it plays a decisive role in the learning of high school mathematics, and the extreme value of the function