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## [课程地址](https://www.bilibili.com/video/BV1Ss4y1X7z4)
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#### 前言
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全称$Geogebra$,简称$GGB$,是代数和几何两个词的合成词。
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**优势**
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① **免费**
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② 全平台($Windows$,$Mac$,安卓)
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③ 面向世界
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**下载**
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**[官网](http://www.geogebra.org)**
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> **注**：课程使用经典$5$,经典$6$一般在移动端展示，但容易卡~
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#### 1.1 用工具和属性绘制简单图形
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**[$GeoGebra$如何擦除踪迹——移动视图、放大、设置活动视图](https://zhuanlan.zhihu.com/p/298051355)**
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