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小学自然第三册《摩擦起电》一课教学设计苏玉彩[教材分析]:本课由以下三部分内容组成,第一部分:通过实验,观察物体摩擦后能吸引轻小东西的现象。第二部分:通过实验,证明物体摩擦后能吸引轻小东西的原因是因为物体带了电。第三部分:通过游戏,验证课文第一、二部...
Natural Elementary School Book 3 “Frictional Power” Lesson Teaching Design Su Yucai [Textbook Analysis]: This lesson consists of the following three parts. The first part: Through experiments, observe the phenomenon that objects can attract light and small things after friction. The second part: Through experiments, it is proved that the reason that objects can attract light and small objects after friction is because the objects are charged. The third part: Through the game, verify the first and second parts of the text...