圆的认识人教版教学设计
下面是小编精心整理的圆的认识人教版教学设计,本文共15篇,希望能够帮助到大家。 一、揭题新授 教师出示硬纸圆,提问是什么图形,学生回答后,反贴在黑板上,出现课题: 1、认识圆形 日常生活中,有着许多大小不等的圆。让学生说出画面上哪些物体是圆形的。 周围还有哪些物体是圆形的。 讨论,球是不是圆形。显示球被破开,旋转球体,出现并闪烁横截面的过程。教师说明:球是球体,不是圆形,要是把球破开,它的横截面就
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