一、教学设计思想本课是人教版高中地理上册第二章第九节的必修内容。以往在讲述这样的内容时，都是围绕教材，以教师讲授为主，教师是主宰。然而收到的教学效果却是：学生本已知道的内容，教师还在机械地重复，学生想要知道的问题，教师却没能涉及，一节课下来尽管课堂上的教 I. Teaching Design Ideas This lesson is a compulsory part of the second chapter of the second edition of the Senior High School Geography Book. In the past, when we talked about such content, we all focused on teaching materials and teachers taught them. Teachers were the masters. However, the teaching results received are: The students already know what the teacher is still mechanically repeating. The student wants to know the problem. The teacher has not been able to deal with it. One lesson is down despite teaching in the classroom.