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课堂教学是学校教学的主要形式,如何提高物理课堂教学的有效性,一直是我们教育工作者亟待研究的课题。在物理教学中教师应创设一定的探究情境,激发学生的探究欲望。在教学中通过生活实例或进行小实验,设计认知冲突,使学生带着疑问,好奇展开科学探究过程。笔者通过几个课例对初中物理有效性教学进行探讨。在学生学完《密度知识的应用》后,为使学生更好地理解这部分知识,教师精心设计教学实验。实验一:有两个完全相同的容器,都装有无色透明液体,其中一个装有
Classroom teaching is the main form of school teaching. How to improve the effectiveness of physical classroom teaching has always been an issue that our educators need to study urgently. In physics teaching, teachers should create a certain situation to explore, to stimulate students’ desire for inquiry. In teaching through examples of life or a small experiment, the design of cognitive conflicts, so that students with questions, curiosity, scientific inquiry process. The author discusses the physics validity teaching of junior high school through several lesson examples. After the students have finished “Application of Density Knowledge”, teachers make elaborate teaching experiments so that students can better understand this part of knowledge. Experiment 1: There are two identical containers, each filled with a colorless and transparent liquid, one of which contains