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1教学目标知识与技能:通过探索平面图形的镶嵌,理解多边形是否能够镶嵌的条件;知道任意一个三角形、四边形或正六边形可以单独进行平面镶嵌;能进行简单的镶嵌设计。过程与方法:经历动手拼、相互交流、展示成果等活动,探索发现多边形镶嵌的条件,培养学生发现问题、提出问题的能力。情感态度与价值观:培养学生积极动手的意识和能力,从中感受数学知识的价值、数学活动的乐趣和数学美的魅力。2重点和难点重点:经历动手拼、相互交流、展示成果等活动,探索发现多边形镶嵌的条件。
1 Teaching Objectives Knowledge and skills: Understand the conditions under which polygons can be embedded by exploring inlaid planes; know that any triangle, quadrilateral, or regular hexagon can be planted in-plane alone; and simple inlaid design. Process and methods: Experience hands-on spelling, mutual exchange, display results and other activities to explore the conditions found in polygons mosaic, to develop students to discover and ask questions. Emotional Attitudes and Values: Develop students’ active awareness and ability to experience the value of mathematical knowledge, the fun of mathematical activities and the beauty of mathematical beauty. 2 key and difficult points: Experience hands-on spelling, mutual exchange, display results and other activities, to explore the conditions found in polygon mosaic.