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初中物理是一门以实验为基础,紧密联系实际的学科,为了更好地调动学生学习物理的积极性,我对初中物理第二册第四章第三节“汽化”进行了一次以竞赛贯穿教学过程,引导学生自己总结运用物理知识的探讨,具体做法如下:课前,将学生分成两个大组,女生一个组,男生一个组,以便进行男女生之间的竞赛.教学过程如下:板书课题:汽化先做演示实验;烧开水.讲解:烧开水时,部分水变成气体;晒衣服,水变成气体;开口的墨水瓶,时间久了墨水减少.以上都是水变成气体的现象,但又有不同.
Junior high school physics is a discipline based on experiments and closely related to reality. In order to better mobilize students’ enthusiasm for learning physics, I conducted a competition through the teaching of junior high school physics Volume II Chapter IV “Vapourization”. The process guides students to summarize the use of physics knowledge. The specific approach is as follows: Before class, the students are divided into two groups, one for girls and one for boys, in order to conduct a contest between boys and girls. The teaching process is as follows: : Vaporization first demonstration experiment; boil water. Explain: When boiled water, some of the water becomes gas; drying clothes, water becomes gas; opening the ink bottle, the ink is reduced for a long time. Above is the phenomenon that water becomes gas. , but different.