华师大版数学上学期画相似图形教学计划
下面是小编为大家推荐的华师大版数学上学期画相似图形教学计划,本文共12篇,欢迎大家分享。 1、创设情景 相似形在生活中随处可见,画与一个图形相似的图形对我们来说就显得很重要.你能画一个与五边形ABCDE相似的五边形A@B@C@D@E@吗? 2、探索交流 例 画一个与五边形ABCDE相似的五边形A@B@C@D@E@,使新图形与原图形的相似比为1.5 . 请同学们按照下面的步骤作图,教师协助同学完成.
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