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教具:投影仪、蓄电池、带铁心的小口径线圈A、大口径线圈B、灵敏电流计、滑线变阻器、开关、导线、条形磁铁、小磁针、小黑板.教学模式:边学边实验.(二人一组)美国教学家G·玻利亚指出,不要把你的全部秘诀一古脑儿地倒给学生,而要让他们先猜测一番,引导他们独立地找出尽可能多的东西,然后再讲给他们听.在这思想的启迪下,我在楞次定律的教学中,让学生动脑、动手、动口,引导他们自己得出楞次定律.教会学生探索规律的方法,培养学生分析思维和观察实验的能力.全课分六个环节:
Teaching aids: projectors, batteries, small-diameter coils A with iron cores, large-caliber coils B, sensitive galvanometers, slide-wire rheostats, switches, wires, bar magnets, small magnetic needles, and small blackboards. Teaching modes: learning by experiment. (Gallery and two) American teacher G. Bolia pointed out that you shouldn’t pour your entire secret on students, but let them guess first and guide them to find out as much as possible independently. Then I told them something. Inspired by this idea, I taught students to use their brains, hands, and gestures to guide them to come up with Lenz’s Law. Students are taught how to explore the laws. Cultivate students’ ability to analyze thinking and observe experiments. The whole course consists of six steps: