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单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,欢迎来访,敬请指导thank you!,thank you!,欢迎来访,敬请指导thank you!,认,角,识,苏教版二年级数学下册,欢迎来访,敬请指导thank you!,thank you!,认角识苏教版二年级数学下册欢迎来访,敬请指导thank yo,1,学习目标:,1. 学会认识角。,2. 知道角各部分名称,能够正确辨认角,比较角的大小。,欢迎来访,敬请指导thank you!,thank you!,学习目标:欢迎来访,敬请指导thank you!thank,2,顶点,边,边,顶点,边,边,顶点,边,边,欢迎来访,敬请指导thank you!,thank you!,顶点边边顶点边边顶点边边欢迎来访,敬请指导thank you,3,下面的图形哪些是角,哪些不是角?,欢迎来访,敬请指导thank you!,thank you!,下面的图形哪些是角,哪些不是角?欢迎来访,敬请指导t,4,欢迎来访,敬请指导thank you!,thank you!,欢迎来访,敬请指导thank you!thank you!,5,欢迎来访,敬请指导thank you!,thank you!,欢迎来访,敬请指导thank you!thank you!,6,欢迎来访,敬请指导thank you!,thank you!,欢迎来访,敬请指导thank you!thank you!,7,欢迎来访,敬请指导thank you!,thank you!,欢迎来访,敬请指导thank you!thank you!,8,欢迎来访,敬请指导thank you!,thank you!,欢迎来访,敬请指导thank you!thank you!,9,欢迎来访,敬请指导thank you!,thank you!,欢迎来访,敬请指导thank you!thank you!,10,欢迎来访,敬请指导thank you!,thank you!,欢迎来访,敬请指导thank you!thank you!,11,欢迎来访,敬请指导thank you!,thank you!,欢迎来访,敬请指导thank you!thank you!,12,四个钟面上,哪个角最大,哪个角最小?,欢迎来访,敬请指导thank you!,thank you!,四个钟面上,哪个角最大,哪个角最小? 欢迎来访,敬请指导th,13,欢迎来访,敬请指导thank you!,thank you!,欢迎来访,敬请指导thank you!thank you!,14,下面的图形中各有几个角。,( )个,( )个,( )个,1,3,2,欢迎来访,敬请指导thank you!,thank you!,下面的图形中各有几个角。( )个(,15,下面图形各是几边形?各有几个角?,( )边形,( )个角,( )边形,( )个角,( )边形,( )个角,四,4,五,5,六,6,?,你发现了什么?,欢迎来访,敬请指导thank you!,thank you!,下面图形各是几边形?各有几个角? ( )边形( )边,16,( )个角,10,欢迎来访,敬请指导thank you!,thank you!,( )个角10欢迎来访,敬请指导thank you!t,17,欢迎来访,敬请指导thank you!,thank you!,欢迎来访,敬请指导thank you!thank you!,18,
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