论文部分内容阅读
我国著名的化学家戴安邦先生曾说过:“化学实验教学是实施全面化学教育的一种最有效的形式。”要做好化学实验,教师的演示是必不可少的。在演示实验过程中,注意指导学生观察现象,不断拓展思维,让学生在感性认知的基础上获得更多的理性认识。演示实验是初中学生认识化学知识的开始,它对于基础知识的传授,学生能力的培养起着重要的作用。
Mr. Dai Anbang, a famous chemist in China, once said: “Chemistry experiment teaching is one of the most effective forms of implementing comprehensive chemistry education.” To perform chemistry experiments, teachers’ demonstrations are indispensable. During the demonstration experiment, pay attention to guiding students to observe the phenomenon, and constantly expand their thinking, so that students can gain more rational understanding based on perceptual cognition. Demonstration experiment is the beginning of junior high school students ’understanding of chemical knowledge, which plays an important role in imparting basic knowledge and cultivating students’ abilities.