2022版《数学课程标准》指明推理能力是指从一些事实和命题出发,依据规则推出其他命题或结论的能力,目前我们已经具备应用已学知识证明其他结论的能力.请阅读下列材料,完成相应任务.
【方法解析】
【数学思想】
(2)上述证明方法中主要体现的数学思想是________;
A.转化思想 B.类比思想 C.数形结合思想 D.从一般到特殊思想
【知识迁移】
(3)如图3,点
是线段
上一点,
,点
是线段上一点,分别连接
,
点
,
分别是
和
的中点,连接
.若
,
,
,请求
的长.
【方法解析】
求证:“直角三角形斜边上的中线等于斜边的一半” 如图1, ![]() ![]() ![]() ![]() ![]() 分析:要证明 ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
【数学思想】
(2)上述证明方法中主要体现的数学思想是________;
A.转化思想 B.类比思想 C.数形结合思想 D.从一般到特殊思想
【知识迁移】
(3)如图3,点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b757f0c42ae5c9a2d6a4b19e5877b27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78b65065ec3a0cb4b050989165c003d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de8cc58ef27567f0ab06eb1012aec330.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a0268d04b9dea7629af27af9a0285a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63e36329f5e0979f5ee776ac5d06327.png)
20-21八年级下·山西吕梁·期末 查看更多[8]
山西省吕梁市孝义市2020-2021学年八年级下学期期末数学试题河南省焦作市2021-2022学年八年级下学期期末数学试题(已下线)题型四 阅读理解题(已下线)专题 18.60 平行四边形(全章复习与巩固)(培优篇)(专项练习)-2022-2023学年八年级数学下册基础知识专项讲练(人教版)黑龙江省鸡西市2022-2023学年八年级下学期期中数学试题(已下线)专题1.7 特殊平行四边形章末八大题型总结(培优篇)-2023-2024学年九年级数学上册举一反三系列(北师大版)辽宁省丹东市宽甸满族自治县2023-2024学年九年级上学期期末数学试题重庆市长寿区长寿川维中学校2023-2024学年八年级下学期期中数学试题
更新时间:2024-01-09 20:30:16
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【推荐1】图①、图②、图③均是
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【推荐2】如图,为
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解答题-证明题
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适中
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【推荐1】如图,菱形
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