2025年教学资料:2.2区间
授课题目2.2区间选用教材高等教育出版社《数学》(基础模块上册)授课时长1课时授课类型新授课教学提示本课由实际问题入手,引出数集的其他表示方式——区间,通过数形结合的学习过程,让学生理解区间的概念,并能在数轴上表示区间,直观认识数轴上实数绝对值的几何意义.能结合实例体会用区间表示数集的简洁性,会用不等式、数轴、区间表教学示数集,逐步提高观想象和数学抽象等核心素养;能结合数轴分析区间目标之间的包含关系,能对用区间表示的数集进行交、并、补运算,逐步提高直观想象和了逻辑推理等核心素养.教学重点用不等式、数轴、区间表示数集教学难点区间的表示,区间端点的处理教学环节教学内容教师活动学生活动设计意图如图所...
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