高中地理上册《地球在宇宙中》 ,这一单元的突出特点是空间概念强。在多年的教学过程中 ,我尝试把课本中的一些文字内容转化为简图的形式加以讲解。其最大的优点在于 ,直观生动 ,学生读图后一目了然 ,便于理解和掌握。经过实践 ,教学效果不错。1.太阳外部结构在这部分教学内容 The high school geography book “Earth in the Universe” is a prominent feature of this unit is the strong concept of space. In the course of many years of teaching, I tried to explain some of the text in the textbook into a simple diagram. Its greatest advantage is that it is intuitive and vivid, and students can read it at a glance and can easily understand and master it. After practice, teaching results are good. 1. The external structure of the sun in this part of the teaching content