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教学目标:(一)知识与能力(1)认识圆,知道圆的各部分名称。掌握圆的特征,知道圆的大小是由半径决定、位置由圆心决定。理解在同一个圆里半径和直径的关系。(2)进一步发展空间观念、操作能力和初步的探索能力。(二)过程与方法通过操作、合作与探究等教学活动
Teaching objectives: (a) knowledge and ability (1) know the circle, know the name of the various parts of the circle. Grasp the characteristics of the circle, knowing the size of the circle is determined by the radius, the location determined by the center of the circle. Understand the relationship between radius and diameter in the same circle. (2) to further develop the concept of space, operational capacity and initial exploration capabilities. (B) the process and methods through the operation, cooperation and inquiry and other teaching activities