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“保持安静”,这是在影剧场等公共场合常见的标语,按通常的理解就是不得喧哗、讲话和议论.一般地说,实验室里也是需保持安静的.只有在清静的环境中,才有利于实验人员,沉着、冷静、细心地操作.而学生实验必须保持安静,就欠妥.因为中学生的实验,有其特殊性的一面:第一,我国中学生一般不是每人一套仪器设备,而多为分组实验;第二,实验的主要任务不是工作、研究,而是学习.因此,实验室的规则应有利于学习,有利于教学质量的提高. 例如:一堂解剖鲫鱼的实验课,学生面对鲜红的鳃、盘曲的肠、跳动的心脏,能不有所思,有所感吗?思想活跃,益于言表,这是很自然的.假若,此时硬要用“不准讲话”的禁条,束缚住学生的嘴,那犹如一盆冷水泼向了燃烧的智慧火苗.
“Quiet,” which is a common slogan in public places such as theaters, is generally understood as noisy, talkative, and argumentative. In general, it is also necessary to keep quiet in the laboratory. Only in a quiet environment Is conducive to laboratory personnel, calm, calm and careful operation, while students must be quiet experiment, it is defective because the experiment of secondary school students have their own special side: First, our country is generally not a set of equipment for each secondary school equipment, But mostly group experiments; second, the main task of the experiment is not work, study, but learning.Therefore, the rules of the laboratory should be conducive to learning, is conducive to the improvement of teaching quality.For example: Anatomy of the experimental class of the carp, students In the face of bright red gills, tortuous intestines, beating heart, can you think, feel? Mind active, benefit from words, it is natural .If this time, hard to use “no speech” Of the ban, tied to the student’s mouth, it is like a pot of cold water poured into the burning wisdom fire.