九年义务教育新课程标准教科书《物理》(人教版)第十四章第四节“流体的压强与流速的关系”一课中有几个流体实验。初中学生对于流体压强与流速的关系的规律比较难理解。通过实验,学生可直观形象地理解流体压强与流速的关系,因此实验成功与否,就直接关系到学生能否理解流体流速越大的位置压强越小这一知识点。教材中的 Nine-year compulsory education new curriculum standard textbook “Physics” (PEP) Chapter 14 Section IV “The relationship between fluid pressure and flow rate ” There are several fluid experiments in a lesson. Junior high school students’ understanding of the relationship between fluid pressure and velocity is difficult to understand. Through experiments, students can intuitively and visually understand the relationship between fluid pressure and flow velocity. Therefore, whether the experiment is successful or not is directly related to whether the student can understand the knowledge point that the greater the fluid pressure is, the smaller the positional pressure is. In the textbook