電腦及網路科技的進步已經為網路學習提供了非常成熟的發展環境,因此,以網路為教學環境的電腦輔助教學系統及教學策略的研究已是多元化教學中不可或缺的一環。但對於網路需求不高的課程或佈線不易的偏遠地區,則無法與數位科技應用結合。過去教學上,有時需要類似分組實習或自我學習(self-learning)課程,學生可能因為在學習過程中遭遇到困難而中斷學習。因此,在本論文中,以數位系統實習課程為例,建立無線感測網路(Wireless Sensor Networks) ,我們利用ZigBee技術具備有成本低、耗電低、體積小、容易佈建、適合於短距離無線傳輸等特性,基於近側發展區(Zone of Proximal Development, ZPD)概念與鷹架理論(Scaffolding),構建學習流程,結合理論與實務。此外,為了解學習狀況和增進互動,在解說課程及實作過程,建立回饋機制及提供使用者介面,藉由訊號資訊回傳,當在學生遇到學習困難時,及時給予學生協助。本文中,我們改變以往的學習硬體環境,整合ZigBee模組與現有的硬體實作學習環境。在資料傳輸測試方面,獲得相當的可靠度。
With the progress of the computer and network technology, the environment for network learning has already been very ripe. So the teaching and learning environment using the network to computer-aided instruction system and teaching strategy are indispensable. However, for the courses that the network is not highly demanded or the classrooms that is not easy for wire-routing, it still is difficult to carry out digital technology applications. In this paper ,we use ZigBee modules to the lab course of digital system. ZigBee is a wireless technology that possesses the advantages of low cost, low power consumption, small size, easy to install, and is quite suitable to the communication of short distance. We built a learning process which is based on the architecture of ZPD and Scaffolding. Moreover, for understanding the situation of interactive learning in the classroom and promoting the interactions between the teacher and the students, our system includes a feedback mechanism and associated user interface. In the feedback mechanism, the information returned in a timely manner when students encountered learning difficulties. The main feature of our work is that, we change the hardware learning environment and integrate ZigBee modules with existing hardware to implement an wireless-based interactive learning environment. In data transmission tests, the system is found to be considerably reliable.