《大气压力》这一课是小学自然教材第五册的第九课。本课的知识目标是：指导学生认识大气压力的存在及方向，了解大气压力的作用；能力目标是：培养学生的实验能力和归纳概括能力。这节课教学面对的是小学三年级学生，他们年龄小，活泼好动，抽象思维能力较差，对于感知大气压 Atmospheric Pressure is the ninth lesson of Volume 5 of the Natural History Textbook of Primary Schools. The goal of this lesson is to guide students to recognize the existence and direction of atmospheric pressure and to understand the role of atmospheric pressure. The goal of ability is to develop students' experimental abilities and summarize abilities. This class teaching is faced with the third grade students, they are young, lively and active, poor abstract thinking, for the perception of atmospheric pressure