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初中化学是化学教育的启蒙阶段。化学基本概念、基本理论的建立、元素化合物知识的提出,无不源于化学实验。组织好实验教学是化学教学非常重要的一环。在教学中,如何培养和发展学生的观察能力、实验能力、思维能力是教师尚需研究的课题。一、明确实验目的,激发学生的观察兴趣在演示实验教学中,教师除按基本操作示范外,还要正确引导学生如何观察实验现象,为激发学生观察实验现象的兴趣,实验前要向学生讲清实验目的,
Junior high school chemistry is the enlightenment phase of chemical education. The basic concepts of chemistry, the establishment of basic theory, the introduction of knowledge of elemental compounds, are all derived from chemical experiments. Organizing experimental teaching is a very important part of chemistry teaching. In teaching, how to cultivate and develop students' observation ability, experimental ability and thinking ability are the topics that teachers still need to study. First, the purpose of a clear experiment to stimulate students' interest in observation In the demonstration experiment teaching, teachers in addition to the basic operation and demonstration, but also to correctly guide students how to observe the experimental phenomenon, in order to stimulate students to observe the experimental phenomenon of interest before the experiment to the students Clear experimental purpose,