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教学内容苏教版小学数学第十一册第124—125页例3及练一练,练习二十六第1—4题。一、教学目标(一)知识教学点1.建立圆面积的概念。2.理解和掌握圆面积的计算公式。(二)能力训练点1.会正确应用公式计算圆的面积,并能解答有关圆面积的实际问题。2.培养学生迁移类推能力。(三)德育渗透点经历对圆面积公式的推导,渗透转化和极限的思想和方法。
Teaching contents Sujiao Primary School Mathematics, Eleventh Edition, pp. 124-125 Example 3 Practice and practice, practice twenty-sixth Issues 1-4. First, the teaching objectives (A) point of knowledge teaching 1. The establishment of the concept of circular area. 2. Understand and grasp the calculation formula of circular area. (B) the ability to train points 1 will be the correct application of formula to calculate the area of the circle, and can answer the actual problem of circular area. 2. Cultivate students ability to migrate analogy. (C) moral education infiltration point Experienced the formula for the circle area, infiltration transformation and limit ideas and methods.