论文部分内容阅读
自然教学大纲明确指出:“自然是义务教育小学阶段的一门重要基础学科,担负着向学生进行科学启蒙的教育任务。” 为完成这一任务,就必须勤动脑,挖潜力,改进实验,提高实验质量,使学生形成正确的概念,以取得更好的效果。现根据自己多年教学经验,谈谈搞好实验教学的体会。1 要改进课本上不够完善的实验 现行六年制教材中,有部分实验还不够完善,易使学生造成误解。如小学自然课本第一册第十八课(水蒸气凝结)中所举的实验:给烧瓶里的水加热后,在靠近喷嘴的地方喷出一股白气。学生对此会产生误解,认为这“白气”就是“水蒸气”。水蒸气是无色透明的气体,为加深学生对水蒸气这一概念的掌握,增强实验效
Natural Syllabus clearly states: “Nature is an important basic discipline in the elementary education of compulsory education and is entrusted with the task of educating students in science.” To accomplish this task, we must diligently tap the potential, improve our experiments, Experimental quality, so that students form the correct concept, in order to achieve better results. Now based on my years of teaching experience, talk about how to improve the experimental teaching experience. 1 to improve the textbook is not perfect experiment The current six-year teaching materials, some experiments are not perfect enough, easy to make students misunderstand. As shown in the eighteenth lesson of Natural Primary Textbook, Volume 18, Water Vapor Condensation: After heating the water in the flask, a white gas spout near the nozzle. Students will misunderstand this, think this “white gas” is “water vapor.” Water vapor is a colorless and transparent gas, to enhance students' mastery of the concept of water vapor and enhance the experimental effect