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高中地理课程往往以介绍地球的宇宙环境为开端,激发了学生对浩瀚宇宙的遐想,培养了宝贵的学习兴趣和求知欲望。但是进入第二节和第三节介绍地球运动的基本规律和地理意义,对空间思维能力的要求有较高提升,从教学效果反馈来看,学生普遍感觉难度加大,这其中又对地球自转的第二个地理意义——“产生时差”感到特别难以理解。“产生时差”涉及的新概念多,且易混淆,往往成为高中地理学习的第一个瓶颈,所以很有必要对教材
High school geography courses often begin with a presentation of the Earth’s cosmic environment, inspire students to reverie the vast universe, and cultivate valuable learning interest and desire for knowledge. However, in the second and third quarters, the basic law and geographical significance of the earth movement are introduced. The requirements on the spatial thinking ability are greatly improved. From the feedback of the teaching effect, students generally feel more and more difficult, The second geographical meaning - “time difference” is particularly difficult to understand. “Time lag ” involves many new concepts, and easily confused, often become the first bottleneck in high school geography learning, it is necessary to textbooks