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近二年来,我们区教研室在海南中学、琼山中学的初三年级,对实验教学作了以下几方面的改革: (一)加强基本操作的教学和训练。 在“绪言”以后,及早进行实验基本操作的训练。课时增加到6～8课时,训练的基本操作项目从13项增加到20项(如玻璃管的弯、切、割、估液、简单仪器连接、气密性检查、排水集气、简单仪器洗涤等)。对每项基本操作要求老师一边示范,学生一边练习,做到人人动手、项项过关。 (二)把一部份简单的演示实验改为边讲边实验,如海南中学初三教改班大约把二分之一的演示实验改为边讲边实验,琼山中学教改班大约把三分之一的演示实验改为边讲边实验。
In the past two years, our district’s teaching and research section has made reforms in experimental teaching in the following three aspects in the third grade of Hainan Middle School and Qiongshan Middle School: (1) Strengthening the teaching and training of basic operations. After the “Introduction”, the basic training of the experiment was conducted early. When the class time was increased to 6 to 8 hours, the basic training items for training were increased from 13 items to 20 items (such as bends, cuts, cuts, estimates of liquids, simple instrument connections, air tightness checks, drainage and gas collection, and simple instrument washing. Wait). For each basic operation, the teacher is required to demonstrate while the students practice, so that everyone can get started and the item goes through. (2) Changing a simple demonstration experiment into a side-by-side experiment. For example, the Hainan Middle School junior high school class will change approximately one-half of the demonstration experiment to the side-by-side experiment, and the Qiongshan Middle School reform class will score approximately three points. One of the demonstration experiments was changed to side-by-side experiments.