地球的北极和南极地区经纬网是呈圆环形状出现的,对学生来说理解起来非常有难度。一、根据地球自转方向确定南北两极地球每天自西向东自转,这就形成在北极上空看地球呈逆时针旋转,在南极上空看地球呈顺时针旋转,因此概况为“北逆南顺”。教学这部分知识时,可以运用实物地球仪进行,让学生模拟地 Earth's Arctic and Antarctic latitude and longitude network is a circular shape appears, for students to understand it very difficult. First, according to the direction of the Earth's rotation to determine the North and South poles of the Earth every day from west to east rotation, which formed in the North Pole to see the Earth was counterclockwise rotation, the Earth seen in the clockwise rotation over the Antarctic, so the profile is . Teaching this part of the knowledge, you can use the physical globe, so that students simulate