由於奈米結構非常的細小無法以肉眼直接觀看，因此如果要觀察一些自然界中的奈米現象及奈米結構就必須透過高倍數的顯微鏡，或是特殊的科學儀器進行觀看，然而這些科學儀器價格昂貴且不容易取得，所以一般人如果想要了解奈米的結構，往往只能搜尋網路上奈米結構的照片，或是去圖書館找奈米的書籍來看。由於照片是平面的並不容易了解奈米的3D結構，再加上一般的國小老師於進行奈米科技教學單元時，通常在進行奈米現象的觀察活動後，搭配投影片或動畫解說奈米現象的原理。學生在被動灌輸知識且很少互動操作的情況下，不容易激起學生進一步主動探究的學習動機。
　　本研究設計「彩蝶效應互動教材」，利用行動裝置或是平板電腦裡多點觸碰的技術控制蝴蝶翅膀結構以不同的放大倍率呈現，再利用三軸加速度感測器的技術讓使用者左右搖晃以不同的角度使得蝴蝶翅膀以不同的顏色呈現，從中觀察自然界奈米現象裡的彩蝶效應。
　　本研究利用教學實驗來探討學生使用「彩蝶效應互動教材」後的學習成效，並採用SPSS統計軟體檢定實驗數據，然後與傳統式的教學比較是否有顯著性差異。經實驗結果得知，「彩蝶效應互動教材」能輔助學生學習並增加學習成效，且透過系統問卷調查發現「彩蝶效應互動教材」能夠有效增加學生的學習興趣。

The nanostructures cannot be observed directly by naked eyes, therefore, it is required to observe some nano phenomena and nanostructures using high-resolution microscopes or special scientific instruments. However, the scientific instruments are expensive and not easy to obtain, so most people can only the search the Internet for nanostructures photo or go to the library to find nano-book if they want to know the nano structure of some materials. The photo is flat and not easy to understand the 3D nano structure. Elementary school teachers usually use slides or animations to explain nano phenomenon. In the case of passive inculate knowledge and very few interactive operations, it is not easy to arouse the students motivation to take the initiative to explore the nano phenomenon in learning.

In this study, the interactive teaching materials of butterfly effect of was designed using mobile devices or multi-touch Tablet PC technology to manipulate the butterfly wing for showing different magnification of its nano structure. The 3-axis acceleration sensor technology allows users to turn around a different view-point to make the butterfly wing show a different color. Students can understand the butterfly effect by the observation of nano phenomena as seen in the nature.

In this study, a teaching experiment was conducted to investigate the learning effectiveness of students after using "The interactive teaching materials of butterfly effect". The experimental data were analyzed using the SPSS statistical software and a significant difference was found by comparing with traditional teaching method. The experimental results showed that "The interactive teaching materials of butterfly effect" could increase the effectiveness of learning. Through the system questionnaire survey, it was found that the "The interactive teaching materials of butterfly effect" can effectively increase students’ interest in learning.

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