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一、关于基本概念的教学课堂上选一个同学到讲桌前按照老师要求演示,其余每二人一个地球仪同步演示,观察地球仪转动的方向,指出两极、赤道,哪是纬线,哪是经线。学生互相提问,交流巩固;教师巡回指导,掌握演示、观察情况。随后,师生共同讨论,进一步明确地球仪基本概念的内涵及其属性特征,并注意以下问题:
First, on the basic concept of the teaching class to select a classmate to the table according to the teacher’s request to demonstrate, and the other every two people a simultaneous demonstration of the globe, observe the direction of the rotation of the globe, pointing out the poles, the equator, which is the weft, which is the warp. Students ask each other questions, exchanges and consolidation; teachers tour guidance, master demonstrations, observations. Afterwards, the teachers and students discussed together to further define the connotation and attribute characteristics of the basic concepts of the globe, and pay attention to the following issues: