在中学物理、化学、生物的教学大纲中,都明确提出,要加强演示实验和学生实验,以使学生能更好的理解知识,发展智力和培养能力。其实这个道理,各校领导与有关教师都是早已明白的,只缘诸多原因做得不够好。面对许多学校的理化生老师都在黑板上做实验的现状,省教委于1992年初下达了准备在1993年春进行省首次实验操作考查的通 In the syllabuses for middle school physics, chemistry, and biology, it is clearly stated that demonstration experiments and student experiments must be strengthened so that students can better understand knowledge, develop intelligence, and develop their abilities. In fact, the reason is that the leaders of various schools and relevant teachers have already understood it, and they have not done well enough for many reasons. In the face of the fact that many school physics and chemistry teachers are experimenting on the blackboard, the Provincial Board of Education issued in early 1992 a preparation for the first experimental operation of the province in the spring of 1993.