《大气压力》□锦州市凌河区正大小学赵淑芬一、教学目的１．通过师生实验，学生认识大气有压力，大气压力的方向是来自四面八方的。２．培养学生实验能力和分析能力以及解决问题能力等。二、教学重点、难点１．什么是大气压力？２．大气压力的存在。３．大气压力的方向。... Atmospheric pressure □ Zhaozhou Normal University, Linghe District, Jinzhou City First, the purpose of teaching 1. Through teacher-student experiments, students have the pressure to know the atmosphere, the direction of atmospheric pressure is from all directions. 2. Training students experimental ability and analytical skills and problem-solving skills. Second, the teaching focus, difficulty 1. What is atmospheric pressure? 2. The existence of atmospheric pressure. 3. The direction of atmospheric pressure. ...