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初中化学教材安排的实验大多是验证性的实验。验证性的实验内容上比较平淡,缺乏趣味性和生动性。因此,在化学实验教学中应深入加强化学实验的启发性、探究性及趣味性的研究。一、用千变万化的实验现象唤起学生学习化学的兴趣在课堂上演示一些明显的化学实验,激发学生学习兴趣。例如开始上第一、二节化学课时,增做“魔棒点灯”“烧不坏的手绢”“无中生有(两无色液体相混生成白色沉淀)”“水中生火”“两棒相遇冒白烟”
Junior high school chemistry teaching materials are mostly experimental experiments. The experimental content of the test is relatively plain, lacking in interest and vividness. Therefore, in chemical experiment teaching, the enlightenment, inquiry and interest of chemistry experiment should be further strengthened. First, with a variety of experimental phenomena arouse students’ interest in learning chemistry Demonstrate some obvious chemical experiments in the classroom, to stimulate students interest in learning. For example, the beginning of the first two sections of chemistry class, by adding “magic wand light ” “burn the handkerchief is not bad ” “” Two rods meet white smoke "