如何才能有效地发挥教师的主导作用,结合化学学科特点,笔者认为化学教师应做好以下几方面的工作。一、创设问题情境,设疑导思——引导者荷兰著名学者弗赖登塔尔说“:学习化学的唯一正确方法是由学生本人把要学的东西自己去发现或 How can we effectively play the leading role of teachers, combined with the characteristics of chemistry, the author believes that chemistry teachers should do the following aspects of the work. First, create a problem situation, set up a misleading guide - the leading Dutch scholar Freidenthal said: ”The only correct way to learn chemistry is to find out by students themselves what they want to learn or