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我在小学自然教学中,为了激发学生兴趣,培养学生科技素质,把课内实验引到课外,引导学生利用科学实验成果为生产劳动服务,起到了一定的作用。 我校养猪场的猪患了一种皮肤病——疥癣,症状是患处发红、长斑、脱毛。当时请了兽医治疗,兽医给了些敌百虫,调水给猪洗,可是,猪病仍控制不下来。我带领课外科技活动小组去观察,并指导他们采来患处皮毛,用显微镜观察。学生兴趣很大,仔细观察后,发现
In my primary school nature teaching, in order to arouse the interest of students, cultivate the quality of students' science and technology, and lead the lessons in class to the outside world, I guided students to use scientific experimental results to produce labor services and played a certain role. Swine farms in our school suffer from a skin disease - scabies, the symptoms are redness, long spots, hair removal. Veterinary treatment was given at that time. The veterinarian gave some trichlorfon and transferred water to wash the pigs. However, the pig disease still remained under control. I led an extracurricular science and technology group to observe and instruct them to pick up the affected area and observe with a microscope. Students interested in a lot, after careful observation, found