原来我校实验条件较差,三人一组一套仪器,不能很好地训练同学的操作能力,以致造成实验室秩序乱和同学不重视实验及基本操作的现象。后经教研室讨论,制定了实验前同学必需做好课前预习,实验时认真操作,教师在实验前预做等有关事项的10条守则。此外,还采取了下列措施。 (一)为了使基本操作规范化、标准化,采用配合录象对同学进行基本操作训练,例如《蒸馏》、《重 The original experimental conditions in our school is poor, a group of three instruments, can not train students’ ability to operate, resulting in laboratory order disorder and students do not attach importance to the experiment and the basic operation of the phenomenon. After the discussion by the teaching and research room, the pre-test students have to make pre-class preview, careful operation of the experiment, teachers pre-test and other related matters in the 10 code. In addition, the following measures have been taken. (A) In order to standardize and standardize the basic operation, students should be trained in basic operations such as “distillation”, "heavy