新课程标准告诉我们,在教学活动中,教师应为组织者、引导者、促进者和参与者,教师的教学方法应该灵活多样,教学过程是师生互动共同发展的过程.要通过讨论、研究、实验等多种教学组织形式,引导学生积极主动的学习,培养学生掌握和运用知识的能力,要关注每个学生,使每个学生都能得到充分发展.下面就听一节公开课谈谈自己的心得体会.一个月前,我校教研组组织听了高三王老师的一节公开课,当时王老师讲的是《函数值域的求法———第二课时》高三一轮复习课,本节课是在前几节课介绍了函数值域的八种求法(初等函数法、配方法、图像法、反表示法、换元法、分离常数法、不等式法、单调性法)的基础上介绍另两种求法:判别 The new curriculum standard tells us that in teaching activities, teachers should be organizers, leaders, promoters and participants. The teaching methods of teachers should be flexible and diverse. The teaching process is a process of mutual development of teachers and students. Through discussions and studies , Experiments and other forms of teaching and organization, to guide students to take the initiative to learn, develop students ability to master and use of knowledge, we should pay attention to each student so that each student can be fully developed. One month ago, our teaching and research group organized an open class to the teacher of the third grade. At that time, Teacher Wang talked about “the method of function value domain --- the second class hour” This lesson is based on the eight lessons learned in the previous sections (Elementary Function, Partition, Image, Anti-representation, Substitution, Separated Constant, Inequality, Monotonicity) On the introduction of the other two kinds of method: Discrimination