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【教学内容】青岛版五年级下册第一单元。【教学目标】1.认识圆,知道圆的各部分名称,初步学会用圆规画圆。2.掌握圆的特征,理解在同圆中半径和直径的关系。3.通过动手操作、主动探索等活动,初步培养抽象概括、数学思考等能力,进一步发展想象意识和空间观念,感受“好玩的圆”。【教学过程】一、谈话引入,整体感知“圆”一个小球绕一点转一周形成什么图形?
【Teaching content】 Qingdao version of the fifth grade under the first unit. 【Teaching Objectives】 1. Recognize the circle, know the name of the various parts of the circle, initially learn to use compasses to draw a circle. 2. grasp the characteristics of the circle, understand the radius and diameter in the same circle. 3. Through hands-on activities, active exploration and other activities, initially cultivate abstract abstraction, mathematical thinking and other capabilities to further develop the imagination and space concepts, feel “fun round ”. 【Teaching process】 First, the introduction of the conversation, the overall perception “round ” A little ball around a little turn to form what graphics?