一、教材分析(一)教学内容“经线和纬线”是七年级地理上册第一章第一节第二框的内容,包括经纬线的概念、特点,经纬度的划分,南北半球、东西半球的划分,低、中、高纬度的划分,特殊纬线及经线圈等知识点。由于概念和知识点多,难度较大,学生容易混淆,最好分为两个部分来 First, the textbook analysis (a) teaching content “warp and weft ” is the seventh grade geography Volume first chapter second section of the first frame, including the concept of latitude and longitude lines, latitude and longitude division, the northern and southern hemispheres, the eastern and western hemispheres Of the division, low, middle and high latitude division, special latitude and the coil and other knowledge points. Due to the concept and knowledge points more difficult, students easily confused, the best is divided into two parts