“二力平衡”教学设计

Teaching Design of "Two Forces Balance"

二力平衡是初中学生学习物理时第一次将运动和力联系起来的关键知识点,苏教版中学物理课程标准针对该知识点的要求是:巩固力和力的图示的知识,加深对受力问题的分析的能力,通过课堂互动以及实验探究的方式来掌握平衡概念、二力平衡条件及其应用。

Two forces balance is the key knowledge point in which middle school students first connect movement with force in learning physics. As for this knowledge point, it is required in the middle school physics curriculum standard of Suzhou Educa-tion Press version that： students should consolidate the knowl-edge of force and its illustrations, deepen the ability of analyzing stress related problems, and grasp the definition of balance, the conditions and applications of two forces balance through class-room interaction and experimental inquiry.