Please use this identifier to cite or link to this item: http://rportal.lib.ntnu.edu.tw:80/handle/20.500.12235/101263
Title: 不同認知結構學生於鷹架式建模課程中科學概念學習之個案研究
Authors: 許瑛玿
李岱螢
Keywords: 認知結構
科學概念學習
鷹架學習
Issue Date: 2007
Abstract: 本研究探討不同認知結構改變類型的學生在空氣污染鷹架式建模課程中科學概念學習成效的差異,先分析學生在進行課程之前具有的先備知識與認知結構,再探討學生完成此課程的學習之後,其科學概念及認知結構的改變情形。本研究採個案研究法,對象為台北縣內某國立高中參與社區化數理探索課程計畫的高一學生,有效樣本共32人。研究工具為空污建模課程、概念測驗、探究測驗、晤談單、學習單。資料分析方法在量的方面採用t考驗(t-test)與描述統計;質的方面以基模─概念圖、認知結構診測向度進行認知結構分析。主要的研究結果如下:(一)學生先備知識中關於空氣污染來源與影響、天氣現象以及常見的天氣系統等名詞定義具有較佳的理解,但於運用大氣垂直溫壓結構以及大氣運動來說明天氣現象的成因與天氣系統的過程機制上,學生則多呈現混淆或錯誤的理解。(二)學生在完成課程之後,在空污概念測驗與認知結構三向度得分均有顯著進步,顯示本課程可以幫助學生學習空氣污染相關概念。(三)整體而言,學生在課程後的概念廣度增加,主要概念的類型多由日常生活概念轉變為科學理論概念;概念連結關係多由單次基模內的概念連結轉變為二或三次基模間的概念連結,錯誤且重複的狀況減少;概念解釋模式明顯由直觀敘述的現象模式轉變為綜合敘述、比較與量化的科學模式。(四)學生認知結構三向度的改變情形不同,一般而言,學生具有較多自省學習狀況、探究與他人想法相異原因及主動尋求具價值外在資源等認知投入的後設認知行為時,認知結構進步情形最佳。
This research is to probe into different cognitive structure students whose studying effect of scientific concept in air pollution scaffold-modeling course. At first, we analyze these students’ pre-knowledge and cognitive structure before the course. Then we probe into the study that students finished this course, their changes of scientific concept and cognitive structure. This research adopts case study, and the target participates are senior one students of the course project for one state-run high school in Taipei county. The effective sample amounts to 32 students. The study tools are air pollution course, concept test, inquiry test, interview sheet, working sheet. The analytical method adopts t-test and describing statistical analysis in the respect of quantity; the respect of the quality adopts schema-concept map and cognitive structure analysis. The main result of study is as follows: (1) It has better understanding that students define air pollution source and nouns, such as influencing, weather phenomenon and common weather system, etc. in the pre-knowledge; but on using atmosphere vertical structure and atmosphere movement to prove the cause of weather phenomenon and its mechanism, students appear obscure and wrong understanding more. (2) After finishing course, students test and their scores make apparent progress. It shows that the course can help students to study the relevant concept of the air pollution. (3) As a whole, the students’ scope of concept after course increases, and types of the main concept are changed into the scientific concept from the daily life concept more. Concept link relationships are changed into two or three schema link from single schema’s concept link, and the mistake and repeated states reduce. The concept explaining model is changed obviously into scientific model which combines narration, comparison, and quantification. (4)Generally speaking, student who has more meta-cognitive behaviors including examining oneself state of studying, probing into with others ideas different reason and seeking valued resource actively, etc., the progressive situation of cognitive structure is the best.
URI: http://etds.lib.ntnu.edu.tw/cgi-bin/gs32/gsweb.cgi?o=dstdcdr&s=id=%22GN0692440145%22.&%22.id.&
http://rportal.lib.ntnu.edu.tw:80/handle/20.500.12235/101263
Other Identifiers: GN0692440145
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