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化学课外活动的内容不可与课堂教学完全脱离,但必须在教师的指导下,有组织、有计划、有步骤地开展。近几年我们做过以以下活动的尝试: 一、活动的内容和做法: 1.塞子钻孔和玻璃管加工。由于课堂教学时间有限,学生实验都用现成的仪器和试剂,这些几乎都是教师准备好的,所以,很多学生中学毕业还不知道玻璃管是如何弯制的,塞子是怎样打孔的,甚至有很多学生不认识酒精喷灯,更不用说使用了。
The content of chemistry extracurricular activities cannot be completely separated from classroom teaching, but it must be organized, planned, and carried out in a step-by-step manner under the guidance of teachers. In recent years, we have tried the following activities: First, the content of the activities and practices: 1. Plug drilling and glass tube processing. Due to limited classroom teaching time, students’ experiments use ready-made instruments and reagents. These are almost all ready for teachers. Therefore, many students still do not know how to bend the glass tube after graduating from high school, how the plug is punched, and even Many students do not recognize alcohol torches, let alone use them.