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【教学内容】人教版六年级下册第47~48页。【教学过程】一、生活原型再现1.课件出示姚明的照片。2.设置疑问:照片上的人这么小,姚明可是有名的高个子,怎么会是他呢?学生通过讨论得出:照片是将实际物体按一定的比例同时缩小相同的倍数拍出来的。【设计意图:以往的经验告诉我直奔主题式教学(课一开始就出现“教室的长是8米,宽是6米”让学生来画平面图)虽美其名曰开放,但这种开放却让不少“勇士伤痕累累”——长、宽缩小的倍数不一致,结果
【Teaching content】 PEP sixth grade volumes 47 ~ 48 pages. Teaching process A life prototype reproduction 1 courseware Yao Ming’s photo. 2 set the question: people in the photo is so small, Yao Ming, but the famous tall, how would it be him? Students come to the discussion: the photo is the actual object by a certain percentage while reducing the same multiples shot. 【Design intent: past experience tells me to go straight to the topic of teaching (the beginning of the class “classroom length is 8 meters, width is 6 meters ” let the students to draw a plan) Although its name is open, but Open but a lot of “Warriors scars ” - long, narrow multiple inconsistent, the results