大气压强对初中学生来说是比较抽象的概念,虽然它与生产、生活有密切的关系,然而由于气体的特殊存在形式——看不见、摸不着,平时感觉不到它的存在,气体的压强容易被人们所忽视,客观上就增加了学生的认知难度,加上初中学生对抽象问题的综合分析还有一定的困难。所以理解起来肯定不容易。 Atmospheric pressure is a rather abstract concept for junior high school students. Although it is closely related to production and life, the special form of gas, which can not be seen or touched, usually does not feel its existence. The pressure of gas Easily overlooked by people, and objectively increases the students’ cognitive difficulty. Combined with the comprehensive analysis of the abstract problems of junior high school students, there are still some difficulties. So it is certainly not easy to understand.