動手玩數學(GeoGebra互動應用) .[性質]: 互動式數學 .[主題]: 橢圓 的定義 .[對象]: 高二學生(B4.4-2 橢圓) .[互動 ]: 按我按我！ .[更多]: http://itmathman.blogspot.tw/ It's Fun. It's Math. (GeoGebra Interactive) .[What ]: GeoGebra Application ( Interactive ) .[About ]: The definition of Ellipse .[Subject ]: Grade 11 (High School Math) .[Interactive ]: ClickMe! .[More ]: http://itmathman.blogspot.tw/