化学是一门以实验为基础的科学,实验课是化学教学的重要组成部分。在教学中,教师应努力创造条件,精心设计实验,充分调动学生参与实验的积极性,激发学生的学习兴趣和求知欲望。一、改善实验条件,增加学生的实验机会演示实验常常因为直观性而影响教学效果。我们可根据条件,尽可能把演示实验改为边讲边实验,增加学生自己动手做实验的机会,培养他们的实验操作能力。例如:对于《几种常见的酸》这一节的教学,可以先指导学生通过自学,阅读课文中有关盐酸性质的介绍,然后让学生自己动手做实验,把得出的结论记录下来,前后位同学再进行讨论,最后通过比较归纳出酸类的化学性质。通过学生自学 Chemistry is an experiment-based science. Experiments are an important part of chemistry teaching. In teaching, teachers should strive to create conditions, design experiments carefully, fully mobilize the enthusiasm of students to participate in experiments, and stimulate students’ interest in learning and desire for knowledge. First, to improve the experimental conditions and increase students’ experimental opportunities Demonstration experiments often affect the effectiveness of teaching because of their intuitiveness. We can, according to the conditions, change the demonstration experiment as much as possible and increase the opportunity for students to do experiments on their own and cultivate their experimental operation ability. For example, for the teaching of “Several common acids” in this section, you can first guide students through self-study, read the introduction to the nature of hydrochloric acid in the text, and then let the students do their own experiments and record the conclusions. The classmates then discussed and finally compared the chemical properties of the acids. Self-study through students