2025年教学资料:4.2 弧度制
授课题目4.2弧度制选用教材高等教育出版社《数学》(基础模块上册)授课时长2课时授课类型新授课教学提示本课通过类比其他度量制,感知弧度制引入的可能性和必要性,学习引入弧度制的意义,进行角度与弧度的换算的一般方法,学习弧度制下弧长公式和扇形面积公式的推导,并会进行有关的计算.教学目标能从熟悉的角度制引申到弧度制,知道引入弧度的必要性,理解定义1弧度的合理性,知道使用弧度制的优势,逐步提升数学抽象等核心素养;能区分角度制与弧度制,知道角度与弧度的换算关系,能将角度与弧度进行互化,会用函数型计算器进行给定角度与弧度的互化,逐步提升数学运算等核心素养;经历弧度制下弧长公式和扇形面积公式的推出过程,并能...
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