论文部分内容阅读
在边讲边实验教学中,学生实验占着重要的地位。讲解时用学生的实验结果为根据,逐步推进。但现用高中化学课本中一些实验是不大适合於这个教学类型的:有的装置太繁,时间太长,有的药品用量不合适,实验难得成功,这些应该想法改进;有的应该实验才好进行讲解的,但课本中没有实验方法,只好自己设计。现在将个人改进和设计的一些实验写出,请同志们指正。
In the side of the experimental teaching, student experiments occupy an important position. Explain the experimental results with the students as the basis, and gradually promote. However, some experiments in current high school chemistry textbooks are not suitable for this type of teaching: some devices are too complicated, time is too long, some drugs are not suitable for dosage, experiments are rare and successful, and these should be improved; some should be tested Good to explain, but there is no experimental textbook, had to design their own. Now write some experiments on personal improvement and design. Please comrades correct me.