文档介绍：小学二年级数学 《角的初步认识》图形导入角的概念角的读法角的大小1PPT课件返回2PPT课件看一看,摸一摸,你的周围有这样的角吗?3PPT课件顶点边边从一点引出两条射线,所组成的图形叫做角返回4PPT课件角通常用符合“”来表示返回12记作:∠1读作:角1记作:∠2读作:角25PPT课件练****判断下面图形是不是角?()()()()╳╳╳√6PPT课件角的大小与没有关。返回care./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4adq/./3c6b/4ad