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【教学目标】1.经历认识多边形的过程,初步认识四边形、五边形和六边形等平面图形,并能正确地识别这些图形。2.让学生在参与数学活动的过程中,逐步增强动手操作的能力以及语言表达能力。3.在数学活动中培养学生合作与交流的能力,增强学生对数学学习的兴趣。【教学重点、难点】1.知道四边形、五边形和六边形的名称,能识别这些图形。2.初步体会什么是边数,感知不同图形的特征。【教学过程】一、激趣导入
Teaching Objectives 1. Through the process of understanding polygons, preliminary understanding of quadrilateral, pentagonal and hexagonal and other plane graphics, and can correctly identify these graphics. 2. To enable students to participate in math activities in the process of gradual enhancement of hands-on ability and language skills. 3. Develop students ’ability of cooperation and exchange in mathematics activities to enhance students’ interest in maths learning. [Teaching focus, difficult] 1. Know the name of the quadrilateral, pentagon and hexagon, to identify these graphics. 2 preliminary experience what is the number of edges, perception of the characteristics of different graphics. Teaching process】 【Import interest