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在化学实验教学中,要以学生为本,尊重学生,引导他们主动参与化学实验活动,教给学生一些探究的方法,激发学生的探究积极性,使不同基础的学生能够把学到的化学知识应用到现实生活中。为了把化学课上的既生动形象又富有情趣,要经常通过演示实验和分组实验来完成,对实验效果不明显的,或是难以操作的化学实验要进行实验改进,使不明显的化学实验变得直观形象。本文以稀释浓硫酸错误操作实验的改进与应用为例进行了说明。
In chemistry experiment teaching, we should regard students as the foundation, respect the students, guide them to take the initiative to participate in chemistry experiment activities, teach the students some methods of inquiry, inspire students’ enthusiasm for inquiry and enable students of different basic backgrounds to apply the learned chemistry knowledge Into real life. In order to make the chemistry class vivid and full of fun, we should often through the demonstration experiment and group experiment to complete, the experimental effect is not obvious, or difficult to operate the chemical experiment to be improved experiment so that the obvious chemical experiment Have an intuitive image. This paper explains the improvement and application of the mistaken operation experiment of diluted concentrated sulfuric acid.