一年级数学下册第1单元《认识图形(二)认识平面图形习题课件新人教版.ppt

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认识平面图形,1 认识图形(二),1涂一涂。,(选题源于教材P5第1题),略,2把各种图形的序号填在( )里。,(选题源于教材P5第2题),3,(选题源于教材P5第3题),1,4,4,2,5,1.把与上边同类型的图形涂上黑色。,知识点,认识平面图形,2.数一数,填一填。,易错点,( )个 ( )个( )个 ( )个( )个,4,1,2,3,7,辨析:同时数多种图形时容易数漏。,3.把能画出左边图形的物体圈起来。,平面图形和立体图形之间的区别和联系,4.这些标志的表面分别是什么形状?,认识生活中的平面图形,( ),( ),( ),( ),正方形,长方形,三角形,圆,

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