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【教学内容】青岛版六三制五年级上册第17~20页。【教学过程】一、谈话导入(出示图片:天安门、泰姬陵、凯旋门、埃菲尔铁塔)师:这些建筑美不美?美在哪里?生:它们美在对称!二、探究新知、归纳概念师:我们在三年级的时候学过对称,谁能用自己的话说
【Teaching Content】 Qingdao version of the six three system fifth grade on the first 17 ~ 20 pages. [Teaching process] First, the conversation into (show pictures: Tiananmen Square, Taj Mahal, Arc de Triomphe, Eiffel Tower) Teacher: These buildings are not beautiful? Where is beauty? Health: their beauty in symmetry! We learned symmetry in the third grade, who can speak in our own words