所谓初中物理“共性知识”是指在初中物理内容中存在定义方式,公式表达及实验操作等方面极具相似性,在教材编排方面又具有一定的时间分散性的知识,称之为“共性知识”.强调这些知识的共性,以便教师在教学中对其进行有益的有意关联,帮助学生形成开放的思维方式,建立相关知识悬点,充分调动学生自我学习的主动性;同时,教学中突出“共性知识”在 The so-called junior middle school physics “common knowledge ” refers to the definition of the physical content of junior high school, formula expression and experimental operations and other aspects are very similar, and in the teaching material arrangement has a certain amount of time dispersed knowledge, called “General knowledge” emphasizes the commonality of these knowledge, so that teachers can make beneficial intentional connections in teaching, help students form an open way of thinking, establish relevant knowledge hanging points, and fully mobilize the initiative of students for self-learning; Highlighting “common knowledge” in teaching