浅谈高职院校中“伯努利方程”的教学设计

Teaching Design of"Bernoulli Equation"in Higher Vocational Colleges

伯努利方程是液压传动这门课程中流体力学的基本方程,也是教学中的重点和难点。它反映了理想液体作稳定流动时,压强、流速和高度三者之间的关系。基于高职学生基础较差,纯理论学习难度较大,不易调动其学习兴趣,文章提出了弱化理论学习,加强应用和理解的学习的教学方法;并采用先以一个热门话题和一个简单的实验为切入点,引出伯努利方程,再牵出伯努利方程在生活中的应用,同时结合学生所学专业列举伯努利方程案例加以说明、巩固所学。

Bernoulli equation is the basic equation of fluid mechanics in the course“Hydraulic Transmission”,also the difficult and key point in teaching.It uncovers the relationship among the pressure,velocity and height of ideal liquid in a stable flow.Due to the poor learning foundation of higher vocational students,pure theory learning is more difficult for them,which affects their interest in learning.This paper puts forward the teaching method of reducing theory learning and strengthening application and understanding.A hot topic and a simple experiment are introduced as the starting point to lead to Bernoulli equation,followed by its application in daily life.Then cases about Bernoulli equation are listed according to students'major so as to give illustration and consolidate their knowledge.