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初中数学 解题 与 析题 嵊州市教研室 蔡建锋 PowerPoint PPT Presentation


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浅 谈. 初中数学 解题 与 析题 嵊州市教研室 蔡建锋. 通过典例题 , 落实基础知识 , 揭示解题方法、技巧,归纳总结解题规律,提出注意问题,提高分析水平,扩展解题思路,培养解题的灵活性和思维的发散性。. 分析解题思路,总结解题方法. 典例. 例 1 、( 2000 年上海市中考试题)如图,在半径为 6 ,圆心角为 90º 的扇形 OAB 的弧 AB 上,有一个动点 P , PH⊥OA ,垂足为 H ,△ OPH 的重心为 G 。. ( 1 )当点 P 在弧 AB 上运动时,线段 GO 、 GP 、 GH 中,有无长度保持不变

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初中数学 解题 与 析题 嵊州市教研室 蔡建锋

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