7.4《流体压强与流速的关系》说课稿（7.4 the relation between fluid pressure and velocity）.docVIP

7.4《流体压强与流速的关系》说课稿（7.4 the relation between fluid pressure and velocity） 7.4 the relation between fluid pressure and velocity First, teaching materials the relationship between the fluid pressure and the velocity is a pep new curriculum physics nine, chapter fourteenth and fourth quarter pressure force, mainly by the what is the relationship between the fluid and the flow velocity and the lift force of the aircraft to produce composed of two core issues, is to pressure liquid pressure mechanical knowledge of the extension and expansion, is a key school of mechanics, is the focus of senior high school entrance examination. Due to the fluid flow is large, many of the smaller pressure phenomenon caused by the frequently encountered in daily life, grasp the textbooks of junior middle school students has the characteristics of strong desire for knowledge, the use of experimental inquiry, stimulate students thinking, to explore the laws of physics, the understanding of common phenomenon in life from science and technology, Institute of applied physics knowledge to solve practical the problem, which reflects from life to physics, from physics to life curriculum. Two, say students After three semesters of physics learning, students already have a certain amount of physical knowledge, and have a certain grasp of physics. Students ability to observe, experiment, think, induce, analyze, reason and so on has developed a lot. However, most students thinking still takes the image thinking as the basic mode of thinking, likes to do hands-on thinking, more interested in the visual content, lack of in-depth thinking and rational thinking process. This lesson starts with the phenomenon and draws simple conclusions. Therefore, after the process of well-designed inquiry, there is no problem for students to study. But we are faced with some rural junior high school students, relatively speaking, narrow knowledge, knowledge and information is not rich, teachers should give them some hig