我们知道,在教学目的和教学内容确定之后,教学方法就成了实现教学目的,完成教学内容的关键。因为教学方法是将教材的知识结构转变为学生头脑中的认知结构,培养学生能力、发展智力,培养学生学习态度、意志、情感,进行思想品德教育的主要手段。正如国外一位教育学家所指出的那样:“选择对某节课最有效的教学方法,是教学过程最优化的核心问题之一。”理论和实践都告诉我们,要想充分发挥每一种教学方法在教学过程中的实际效能,达到优化教学过程的目的,首先要在优选教学方法或教学方法的优化设计上下功夫。前者指的是合理选择已有的教学方 We know that after the purpose of teaching and the content of teaching are confirmed, the teaching method becomes the key to achieve the goal of teaching and complete the teaching content. Because the teaching method is to change the structure of the knowledge of the textbook into the cognitive structure in the minds of students, develop students ’abilities, develop their intelligence, cultivate students’ learning attitudes, wills and emotions and carry out ideological and moral education. As an educator abroad points out: “Choosing the most effective teaching method for a lesson is one of the core issues in teaching process optimization.” Both theory and practice tell us that in order to give full play to each A teaching method in the actual process of teaching effectiveness, to achieve the purpose of optimizing the teaching process, we must first optimize the teaching methods or teaching methods to work hard. The former refers to a reasonable choice of existing teaching