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小学自然《凸透镜》一课的教学目的是让学生通过动手实验认识凸透镜具有会聚光线、放大物体、使物体成像的作用,培养学生通过实验寻找事物的规律的能力和实验操作能力。我在教这一课时注重学生的分组实验,让学生从实验中主动地获得知识。 1 提问引入,激发兴趣 本课一开始我就问学生:“火柴不准擦你有办法点燃吗?”同学们听了都好奇地看着老师。
The primary purpose of the teaching of “Convex Lens” in primary school is to enable students to understand the function of converging light, magnifying objects and imaging objects through hands-on experiments and cultivating students' abilities of experimenting with the laws of finding things through experiments. When I was teaching this class, I focused on grouping students' experiments and letting students acquire knowledge from experiments. 1 questions to introduce and stimulate interest in the beginning of this lesson I asked the students: “The match will not rub you a way to ignite it?” Students were listening to curiously looked at the teacher.