結合動態幾何軟體的輔助教材，裨益於數學代數與幾何概念的建立，以及概念心像的形塑，且對數學學習態度有正面影響，然軟體所費不貲，令教學者聞之怯步。本研究旨在(1)剖析自由軟體GeoGebra融入國高中數學教學的可行性及其適用範圍；(2)探討自由軟體GeoGebra推廣模式。本研究採用問卷調查以及實地教學觀察與座談的方式，剖析GeoGebra融入國高中數學教學的可行性及其適用範圍；召開諮詢會議及進行個別訪談，諮詢訪談具有GeoGebra實戰經驗國高中職數學教師及對數學教學現場具有相當了解的國中教師，探討GeoGebra如何融入數學教學；(3)舉辦「GeoGebra數學數位教材教學設計」研習活動，檢視研習模式，構思如何提供實用的課件；(4)架構GeoGebra網站，思索如何提供線上教學影音及課件等，讓GeoGebra得以迅速普及化。研究發現：(1)GeoGebra具有效益：對教與學皆有助益，並可期跨越PR藩籬；(2)GeoGebra增益方式：效益取決互動與可操作、結合做數學方益信念；(3)融入及研習意願：助益則融，意願研習。建議如下：(1)將GeoGebra融入國高中數學形成方案；(2)辦理研習提升教師GeoGebra素養；(3)充實GeoGebra網站；(4)支援軟硬體設備。

　　This study aimed (1) to analysis the feasibility about applying the free software GeoGebra into junior and senior high school mathematics teaching; (2) to explore the promotion mode for GeoGebra. This study used a questionnaire, consulting meetings and individual interviews to collect data. Results indicate that: (1) GeoGebra has benefits: be helpful for teaching and learning, and span PR barriers; (2) the effect depends on the interaction and performance. The recommendations are as follows: (1) form the program for integrating GeoGebra into junior and senior high school mathematics teaching; (2) to enhance teachers’ GeoGebra literacy; (3) to enrich the GeoGebra website; (4) to support software and hardware.