传统的教学关系中,学生所处的地位对学生的知识建构有着直接影响。滑轮一课的教学中,学生的“知其然难知其所以然”的学习结果,暴露出知识建构过程冗长低效的问题。利用简洁化的思路,让学生迅速掌握定滑轮与动滑轮的特点,可以让学生的理解过程更清晰。实施简洁化教学,应当成为物理教学的选择。 In the traditional teaching relationship, the status of students has a direct impact on the students’ knowledge construction. In the teaching of pulleys, the learning outcomes of students who know their reasons are not known, revealing the problem of long and inefficient knowledge-building process. The use of simple ideas, allowing students to quickly grasp the fixed pulley and moving pulley features that allow students to understand the process clearer. The implementation of simple teaching, should be the choice of physics teaching.