铅笔的长度测量与几何构造
2015-04-02 00:47
本GeoGebra范例演示了如何通过几何构造探讨铅笔的长度。利用多边形、线段和点构建铅笔模型，并结合序列与平移变换展示测量过程。该课件适合基础几何教学，帮助学生直观理解长度测量、矩形与三角形的组合构造，以及图形平移在现实物体建模中的应用。
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<expression label="text1" exp=""拖拉「×」點，改變鉛筆的長度。拖拉鉛筆到適當位置，量度鉛筆的長度。
鉛筆的長度是多少 cm？""/>
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