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课题:多边形的内角和教学内容:苏教版四年级下册96、97页的内容教学目标:1.通过观察、操作等具体活动,探索并发现多边形的内角和与它的边数之间的关系,并能用自己理解的方式表示所发现的规律。2.经历探索多边形内角和的过程,积累一些探索和发现规律的经验,发展空间观念,培养动手操作能力和合情推理能力。3.在参与探索活动的过程中,进一步产生对数学的好奇心,感受数学活动的挑战性和趣味性,增强学好数学的信心。
Topic: Polygonal Inner Corner and Teaching Content: Sujiao Grade Four, Volume 96, Page 97 Contents of Teaching Objectives: 1. Through the observation, operation and other specific activities, to explore and discover the polygon’s interior angle and the number of its edges Relations, and can use their own understanding of the way to express the law found. 2. Experience the process of exploring the interior angles of polygons, accumulate some experience in exploring and discovering laws, develop space concepts, and develop hands-on abilities and empathy-reasoning skills. 3. In the course of participating in the exploration activities, the curiosity of mathematics is further generated, the challenges and interests of mathematics activities are felt, and the confidence in learning mathematics is enhanced.