挖掘试题情境，突破面积比值——以2023年云南省中考题为例_OpenScirbe Publishing

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挖掘试题情境，突破面积比值——以2023年云南省中考题为例

Author(s)：
杨鹏

Publication Title：

Wen Yuan (Middle School Edition) 2024 No.03

Affiliations：
昆明市第一中学西山学校

Abstract：
2023年云南省中考题第23题是一道以圆为背景，中点和角平分线作为条件求三角形面积比值的几何综合题，本文从4个不同视角度，给出多种解题方法，进而归纳出蕴含的基本几何模型及处理面积比值问题的一般思路，并对中点和角平分线模型进行教学思考，最后对初中几何的教学提出相应的建议。

Keywords：
中点；角平分线；面积比值；相似；基本图形；一题多解

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[1] 杨鹏.挖掘试题情境，突破面积比值——以2023年云南省中考题为例[J].Wen Yuan (Middle School Edition),2024(03),.

文渊(中学版)

Wen Yuan (Middle School Edition)

Language: 中文

CN：11-9275/G

ISSN：2096-627X

Publication Frequency: 月刊

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