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幼兒圖畫書中長度測量之對談與實作

為了解決1 yard to inches的問題，作者蔡菁菁 這樣論述：

本研究旨在透過六本與長度測量相關之圖畫書（《排隊書》、《一吋蟲》、《一呎腳丫子有多大？》、《12隻蝸牛到一隻蜥蜴－一個淘氣的測量故事》、《小瓢蟲到處飛》、《量一量Penny》）之「團體討論」及「圖畫書與自由實作」，以瞭解幼兒之長度測量概念。本研究以採用蒙特梭利教育之臺南市私立陽光幼稚園健康家（混齡班）之14名（9男和5女）大班幼兒為研究對象，自98年2月11日至6月24日（為期五個月），透過錄影/音與隨機訪談，蒐集與分析幼兒依序於六本圖畫書之「團體討論」及「圖畫書與自由實作」歷程之「觀察和訪談紀錄」及「其他文件資料」（觀察手札、活動紀錄單、和照片）。研究結果顯示：幼兒於「團體討論」及「圖畫書

與自由實作」時所展現之「長度測量」概念極為相似，唯「對談」時較為天馬行空，「實作」時則趨於實際。其概念如下：一、 於「長度之認識」方面，幼兒知道「動」、「靜」之具體物皆有長度，有直的和彎的長度；會使用「長、寬、高、遠、短、距離」等長度用語。二、 於「長度之比較」方面，幼兒有「視覺比較」之能力；會以「重疊或並排法」「直接比較」；會以「數字」或「中介物」「間接比較」。三、 於「長度測量工具/單位之使用」方面，幼兒會分辨與選用「非標準單位」與「標準單位」測量；使用一、二或數個等量之測量工具/單位「頭尾相接」、「端點對齊」進行「等量合成複製」，並解決超過或不足之問題。有些幼兒使用「尺」時，會對齊

刻度「0」。幼兒能估測直線短距離；慣用「一個一個數算」之策略得知測量的結果；以「圖像」、「文字」、「數字」和「單位」記錄測量的結果；瞭解「1碼貝蒂珍＝3隻蜥蜴＝3隻國王的「一呎腳丫子」＝36隻蝸牛＝36隻一吋蟲」之「單位換算」關係及「單位」與「數字」之大小關係。幼兒公認使用「尺」測量最公平。本研究亦提出具體建議，供幼教老師選擇與使用圖畫書進行「長度測量」教學之參考。

RFID的應用與挑戰

為了解決1 yard to inches的問題，作者何傑輝 這樣論述：

Since human civilization has stepped in the era of electrical and electronic devices, the pace and magnitude of technological breakthrough has been unprecedented, over any past time period. Ironically, the need and expectations of the society have been a step ahead. At any particular time, there ex

ist few technical fronts where the above two factors exist in equilibrium. Further, the equilibrium is short lived.RFID stands for Radio Frequency IDentification, it is a technical breakthrough in the challenging field of providing unique identity to a person or thing and being able to monitor it or

them. What sets it apart from numerous other short lived breakthroughs is that despite being around for decades, its ramifications with modern technologies are capable of meeting the enormous demand, relevant to its scope, which again is constantly touching new horizons. Despite being such a versat

ile technology and being adopted by industry giants like Wal-Mart, the technology is still under skepticism in larger proportion.This literature review paper explores the obstacles or the challenges that prevent the global adoption of this unique and exemplary technology. The challenges are made spe

cial by the fact that there are very few technologies that exist in the equilibrium like RFID, and hence are not available for study at all the times. Further they are unique to each technology.This paper starts with an insight into the history of RFID. Then a concise section on the topic that comma

nds numerous books and research papers to itself, the components of RFID and how they integrate into this technological marvel. The numerous uses of RFID are hard to fit in any paper. Thus we carefully select the areas, relevant to a broader audience, and give a comprehensive account of how RFID has

been instrumental in these areas. Next comes the challenges in RFID adoption. The paper presents challenges ranging in duration from the inception of RFID, to the contemporary ones originating from the small material component changes in present day RFID. The paper concludes by giving a brief outli

ne of present scenario and recommendations derived after balancing the challenges against the present and potential scope of RFID technology.