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化学是一门以实验为基础的科学,实验是学生获取知识的一个重要途径和方法。初三化学实验包括分组实验和演示实验,分组实验主要考查学生的动手操作实验能力,而演示实验主要考查学生的观察和分析实验能力,他们在初三化学学习中起着举足轻重,不可替代的作用。那么如何更好地完成演示实验,并且达到预期的实验效果,下面笔者简单谈谈几点自己的看法。
Chemistry is an experiment-based science. Experiment is an important way and method for students to acquire knowledge. The first three chemical experiments include group experiments and demonstration experiments. The group experiments mainly examine students ’hands-on experimental capabilities. The demonstration experiments mainly examine the students’ ability to observe and analyze experiments. They play an important and irreplaceable role in the third-year chemistry study . So how to better complete the demonstration experiment, and achieve the desired experimental results, the author briefly talk about my own views.