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【教学课件】19.3.1二次根式的加法与减法(1)

  • 2026-04-12 21:09:25
【教学课件】19.3.1二次根式的加法与减法(1)

19.3.1二次根式的加法与减法（1）

冯慧欣（赵桂芳名师工作室D组）

作者简介

冯慧欣，中共党员，一级教师，赵桂芳名师工作室D组成员，任职于鞍山市海城开发区实验学校初中部．曾参与省级著作综合实践课例编写，先后斩获辽宁省初中数学优质课、鞍山市优秀课例评比一等奖、市级优质课等多项教学荣誉．

作品简介

本课件选自人教版初中数学八年级下册第十九章第3节《二次根式的加法与减法》第1课时．秉持 “以生为本、循序渐进、素养导向” 的设计理念，遵循学生认知规律展开内容编排．

课件通过具体例子，引导学生先化简二次根式再进行加法运算，由特殊到一般地归纳出二次根式加减法运算法则，并结合实际问题落实知识应用．

课件紧扣代数运算核心，依托分配律推导运算法则，让学生体会数系扩充中运算律的一致性，帮助学生提升运算能力，增强应用意识．

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0.096144s