2025年教学资料:3.2函数的表示方法
授课题目3.2函数的表示方法选用教材高等教育出版社《数学》(基础模块上册)授课时长3课时授课类型新授课教学提示本课将通过实例帮助学生认识函数的三种表示方法,并通过典型例题帮助学生理解分段函数的含义,学会根据实际情况写出分段函数的解析式,并会用“描点法”作图和求值.教学目标能结合生活中的实例,从解析式中、表格、图像三个方面叙述函数概念,学会函数的三种表示方法,逐步提高直观想象、逻辑推理和数学抽象等核心素养;能分析具体情境中数量间的对应关系,并选用恰当的函数解析式表示;能复述分段函数的概念,会用描点法画图,逐步提高逻辑推理和数学抽象等核心素养.教学重点函数的三种表示方法,“描点法”作图教学难点对分...
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