本研究主要目的在探究知識翻新活動對小學生節能減碳概念理解的影響。以知識翻新理論 (knowledge building) 作為教學核心理念，並以知識論壇(Knowledge Forum，KF)─電腦支援協作學習工具─來輔助與紀錄學生的學習。研究方法採個案研究法，研究對象為台北市某國民小學五年級某班學生(N=34)，研究時程為一學年，課程以節能減碳為主題。資料來源包括：(1) 知識論壇上之想法討論與互動歷程；(2)知識論壇平台之溫室效應與節能減碳想法貼文；(3)節能減碳概念理解之測驗。資料分析包括：(1)以知識論壇的分析工具(Analytic Toolkit, 簡稱ATK)分析學生在平台上想法討論與互動的行為；(2)分析學生在平台上所發表的貼文內容之階段性發展，並將學生所討論的概念與環保署所提供的溫室效應與節能減碳國中教材進行比較，以檢測學生所提的概念之完整性與豐富度；(3)使用創造力概念的流暢性、變通性、獨創性、精密性等四個面向，檢驗學生共構的知識品質；(4)分析課程結束後所進行的節能減碳概念測驗，檢測學生在知識翻新活動下對節能減碳概念的理解。研究結果發現：(1)知識翻新教學有助於促進以「想法」為單位的學習與互動模式；(2)知識翻新的學習環境有助於學生共創豐富的知識；(3)在知識翻新的學習環境中，呈現學生的想法數量漸趨減少但品質漸趨提升的情況；(4)讓學生自己翻新知識以主動學習，相較於被動的學習方式，更有助於提升學生在科學學習上的成效。根據上述結論，本研究提出下列幾點建議：（1）教師應重視學生的想法；(2)教師應鼓勵以想法為中心的互動與學習；（3）教師應幫助學生發展創新知識的關鍵能力；(4) 教育相關單位在設計課程與測驗時，更應重視學生的深層理解；(5)教師在教學上應善加利用網路學習資源。 / The purpose of this research was to investigate the effects of knowledge building activities on elementary students’ concepts of energy saving and carbon reduction. Knowledge building pedagogy and Knowledge Forum (KF)─an computer-supported collaborative learning environment─was employed in this study to document the process of students’ idea generation and development. This study employed a case-study design. Participants were a class of fifth graders from an elementary school in Taipei (N=34). They participated in a natural science class for a year and the topic of inquiry was about energy saving and carbon reduction. Data sources included: (1) Students’ online discussion recorded in a KF database; (2) Student’s ideas about energy saving and carbon reduction; (3) Students’ final test about energy saving and carbon reduction. Data analysis include: (1) descriptive analysis using Analytic Toolkit (ATK) and Social Network Analysis to document students’ interactive processes online; (2) qualitative analysis on the content of notes posted in KF; (3) content analysis, using the four aspects of creativitiy--fluency, flexibility, originality, and elaboration--to examine the quality of ideas generated by students; (4) learning assessment using the final comprehension test to evaluate students’ level of understanding about energy saving and carbon reduction in knowledge building environment. The main findings were as follows: (1) Knowledge building instruction was found helpful for supporting students’ work with “ideas”; (2) Knowledge building environment was conducive to knowledge advancement; (3) In the process of knowledge building, it showed the number of ideas was decreasing but the quality of ideas was improved; (4) Knowledge building environment was helpful for students to enhance science learning. Building on the findings, this study made the following suggestions: (1) Teachers should value students’ ideas; (2) Teachers should encourage students to interact and work with ideas; (3) Teachers should help students develop capacity for creating new knowledge; (4) When designing instruction, it is essential to emphasize deeper understanding; (5) Teachers should make good use of the online learning resources.

數學能力向來被視為解決問題能力的重要基礎。隨著知識經濟時代的來臨，數學愈加受到重視，數學教師的教學效能亦面臨新的挑戰。為了協助師培生發展更具創意與多元的教學方式，本研究在中學數學科教材教法之課堂中，提供學生以知識翻新（knowledge-building）(Scardamalia, 2002) 教育理念為核心的課程設計，並使用知識論壇(Knowledge Forum™)數位學習平台作為本課程的線上輔助學習環境。研究主要目的在利用教室中與論壇上的知識翻新活動以提昇師培生對數學相關信念之反思與瞭解。研究對象為9位師培生。本研究透過混合研究設計以蒐集資料，資料來源包括：（1）整學期師培生在「知識論壇」平台上之討論與貼文；（2）期初與期末的數學信念開放式問卷；與（3）師培生的試教。資料分析方式如下：(1)平台上的貼文主要使用知識論壇分析工具(Analytic Toolkit for Forum)探討師培生在平台上的互動與知識翻新歷程；（2）數學信念開放式問卷主要以兩種觀點進行內容分析並交叉檢證；與（3）試教過程(錄影檔)以開放式問卷所產生之編碼進行影片內容的分析。 研究結果發現：（1）以知識翻新理論為原則之課程設計有助於師培生發展更建構取向之數學信念；（2）使用知識論壇平台有助於師培生分享知識與自我反思；（3）數學信念與教學實踐呈現相互影響的關係；以及（4）透過知識翻新的課程設計，師培生逐漸理解多元與彈性的教學對學生學習的重要性。本研究根據研究結果提出以下幾點建議以供未來師培教育之參考：（1）數學師資培育必須將專業學術知識的學習與成熟信念的養成作更密切的銜接；（2）師培機構進行課程設計時，應提供更多元開放的教學方式來幫助師培生學習；（3）師培教育應鼓勵師培生發展更能適應未來學生學習之教學方法。 / The purpose of this study was to investigate the impact of knowledge building pedagogy and technology on preservice teachers’ views on the nature of, and teaching practices in, mathematics. Participants were nine preservice teachers who took a university course titled “High-School Mathematics Teaching.” A software program called Knowledge Forum was employed to enable an online knowledge building environment for preservice teachers to explore, reflect, and discuss about the nature of, and teaching practices in, mathematics. Data mainly came from three sources: (1) preservice teachers’ online posting and discussion recorded in a KF database, (2) a survey about mathematical beliefs with eight open-ended questions, and (3) preservice teachers’ teaching practice videos. To analyze, (1) online discussion records automatically recorded in Knowledge Forum were analyzed using descriptive statistics; (2) open-ended survey questions were content-analyzed following an open-coding procedure; and (3) two cases of preservice teachers’ teaching practice were further explored by employing video analysis techniques. The main findings were as follows: (1) engaging in knowledge building was found to help preservice teachers develop more constructivist-oriented mathematics beliefs; (2) use of Knowledge Forum was helpful for preservice teachers in sharing their knowledge and reflecting on their teaching; (3) mathematics beliefs and teaching practice could mutually influence each other; (4) after engaging in knowledge building for a whole semester, preservice teachers were able to realize the importance of capitalizing on more diversified ways of teaching to enhance student learning. Building on the results, this study made the following three suggestions: (1) teacher education program should pay more attention to integrating the learning of pedagogical content knowledge into the development of more mature mathematical beliefs among preservice teachers; (2) teacher education program should encourage more diversified and flexible ways of teaching practice when designing its courses; and (3) teacher education program should encourage preservice teachers to develop more adaptive teaching practices to help students learn in the future.

本研究旨在探討，基於知識翻新教學（knowledge building pedagogy）所建立的電腦支援協作學習環境，能否協助提昇學生對科學理論本質的理解。研究對象為52位修習「自然科學概論」課程的大學生。教學設計以知識翻新教學法為原則，並輔以知識論壇（Knowledge Forum）線上合作學習平台。 資料來源包括：（1）學期前後對科學理論本質理解之開放式問卷；（2）平台討論內容；（3）平台活動量(包括貼文數、回文數等數據資料等)。資料分析採用質性內容分析法及量化成對T考驗、卡方考驗等方式。 研究結果指出：(1)經由知識翻新教學，學生於學期後對科學理論本質理解產生顯著轉變。學生對科學理論本質的觀點，在期初較偏向邏輯實證主義：認為理論主要來自於對自然界的觀察、發現；或視理論為絕對客觀、正確的實驗結果；或認為理論主要是經由科學家個人所產生，並且是一種具有權威性且不可改變的存在。然而，在期末時，學生對理論本質的理解則轉變為比較建構取向的理解：認為理論是科學家或科學社群的發明，其結果受社會與人文因素等影響；或認為理論本身可以透過某些標準被評價，例如解釋力、適當性、邏輯流暢度等，因此理論能夠被不斷翻新修正。(2)學生在學習平台上進行探究活動中呈現的科學概念層次隨時間經過而不斷進步。學生在後半學期能使用更明確而具體的科學訊息、證據，對議題進行討論。(3)最後，學生對科學理論本質理解的轉變，以及其科學探究概念層次的高低，皆與其在平台活動量（如參與程度等）有正向關連。 針對上述結果，本研究提出相關討論與建議，以供現場教師或未來研究者之用。 / The aim of this study was to investigate whether students can develop a better understanding of the nature of scientific theories after engaging in a computer supported collaborative knowledge building environment. Participants were 52 undergraduate students who took a course about nature sciences. The instruction of this course was designed based on knowledge building pedagogy, using Knowledge Forum as a tool for students to construct their theories about scientific phenomena through online collaboration. Data sources included: （1） a pre-post open-ended questionnaire that investigated students’ understanding of the nature of scientific theories; （2） the content of an online forum in which students posted their ideas; （3） students’ activities in the forum, for instance, number of students’ notes contributed, or number of notes built-on to each other’s notes. Data were analyzed through both qualitative and quantitative methods. From a qualitative perspective, we used content analysis to evaluate the quality of students’ discussion; from a quantitative perspectivea, paired t-test and chi-square were used to examine students’ change of views regarding the nature of scientific theories after the course. The results showed that after a semester, students were able to develop a more constructivist-oriented view toward the nature of scientific theories. Their view shifted from a more positivist-oriented perspective to a more constructivist-oriented one. Further, the finding showed that there was significant improvement in students’ scientific inquiry as reflected in the progressively more sophisticated levels of the scientific concepts discussed online. Moreover, it was found that there was a statistically significant, positive correlation between students’ enhanced understanding of the nature of scientific theory and the intensity of students’ online activities. Additionally, the results also indicated that there was a significant, positive correlation between the depth of students’ scientific inquiry ( as reflected in the concepts inquired and discussed online) and the extent of students’ online activities. Some further suggestions and implications were also discussed in the study.

本研究的主要目的在探究以想法為中心的教學設計對大學生學習歷程與知識信念的影響。本研究透過知識論壇 (Knowledge Forum，KF) —一個以知識翻新（knowledge-building）教育理念為核心所建立的數位學習平台—來記錄學生的學習歷程。研究設計採個案研究法，以一個班級為研究單位，藉由多元資料的蒐集，以深入瞭解知識翻新教學對大學生在學習歷程上的影響。研究對象為某大學修習「生活科技概論」課程之22位學生。 資料來源包括：(1) 知識論壇上的學習筆記(note)—即學生整學期在知識論壇平台上的貼文與對話記錄；(2) 期末科技成品與影音記錄—即課程中學生所設計科技產品的期末發表; (3) 期末反思—即學生的期末學習心得; (4) 知識信念問卷(Chan & Elliott, 2004)的前後測資料。 本研究依據資料分析結果提出以下三點主要結論: (1)協作式的知識共構活動可以幫助學生跳脫傳統以個人為中心的學習方式，並進而以集體想法交流的形式來共構知識；(2) 從學生在科技產品上的創意表現可知，學生已逐漸能體認到知識是可以被創造的，人人都有能力創造知識；(3) 學生經過一學期的知識建構過程後，在知識信念上也有部分轉變，特別是在「天賦能力」的面向上，傾向學習能力並非天賦且不可改變的觀點。 根據上述結論，本研究在教育實務上提出以下三點建議：(1) 教師應多運用想法中心的教學設計，以培養有自主想法的學生，並藉此激勵學生積極參與學習社群中的知識共構活動；(2) 教師應將知識創造的能力視為學生學習的關鍵能力，以培養學生面對未來職場所需的競爭力；(3) 師資培育機構應注重師資培育生在知識信念上的發展，並協助其養成更具建構取向與學生中心的教學信念。 關鍵詞：想法中心、電腦支援協作學習、知識翻新、知識信念、主動學習 / The purpose of this research was to investigate the effects of idea-centered education on college students’ learning progress and change in epistemological beliefs. An online collaborative knowledge-building environment—Knowledge Forum (KF)—was employed in this study to document the process of students’ idea generation and development, as well as their belief change. This study employed a case-study design, using a college class as a unit for investigation, with multiple datasets collected to understand how knowledge building might affect students’ learning process and outcome. Participants were 22 students (16 females and 6 males) who took a course titled “Introduction to Living Technology” in a university, Taiwan. Major data sources include: (1) Students’ online discourse recorded in a KF database; (2) Students’ final presentations about the technology products they designed (the presentations were videotaped); (3) An open-ended survey employed to elicit students’ reflection on what they did and learned from this course; (4) A belief questionnaire, adopted from Chan & Elliott (2004), which was administered in the beginning and at the end of the course. There were three main findings: (1) An idea-centered approach was found helpful for students to move away from individual-based learning to taking more collective responsibility in their knowledge advancement. It was found that with support of KF, students were able to engage in continuous idea exchange and improvement; (2) As evidenced in students’ performance on the design of creative technology products, it was suggested that students have gradually realized that knowledge can be created and that all humans has potential to create knowledge; (3) After doing knowledge-building for a whole semester, the participating students also shifted their’ beliefs to become less inclined to believe in inborn ability as a fixed quality. Building on the findings, this study made the following suggestions: (1) To foster student capacity for more autonomous learning and collaborative knowledge building, teachers should try to encourage students to work with ideas and to engage them in sustained idea improvement; (2) Teachers should regard knowledge creation as a key ability that students need to acquire in order to face the competitive workplace in the future; (3) Teacher education programs should pay attention to the development of students’ epistemological beliefs, and to help student develop a more constructivist-oriented and student-centered teaching beliefs. Keywords: idea-centered, CSCL, knowledge building, epistemological beliefs, active learning

本研究主要目的為探究知識翻新教學對學生知識共構歷程與想法概念理解的影響。以知識翻新原則（knowledge building principles）為教學理念（Scardamalia, 2002），輔以知識論壇(Knowledge Forum™)的教學設計，提供一個電腦支援協作學習的線上環境，幫助學生體驗與想法互動、想法共構與翻新想法的過程，並紀錄學生多元的想法。本研究採個案研究法，研究對象為某國立大學的學生（N=41），教學時程為一學期。資料來源與分析包含：(1)知識論壇平台活動情形--透過知識論壇分析工具與社會網絡分析法來瞭解學生在平台上的活動量與互動關係；(2)知識論壇中學生想法互動貼文--透過Dean, Hender, Rodgers與Santanenm（2006）建立的想法品質評估量表，以新穎性、可行性、關聯性與具體性四個面向進行學生想法的評分，另外也採用Garrison, Anderson與Archer（2001）提出的實用探索模式，將學生想法分為引發事件、探索、整合、決議四個探索層次進行分析；(3)想法概念開放式問卷前後測--由學生的回答進行開放式編碼，搭配Popper（1972）三個世界知識論（3-World epistemology）的理念框架進行分析。研究結果發現：(1)知識翻新與知識論壇輔助的教學設計，能幫助學生產生想法、進行想法互動，提升想法層次；(2)在知識翻新教學環境下，能提升學生對於想法概念的多元理解，並逐漸將想法視為可被交換與運用來解決真實問題的具體產物；(3)品質與數量並重的想法共構歷程，與學生對於想法概念的理解程度有相輔相成的可能性；(4)知識翻新學習環境，能促使學生提出多元化的想法，透過探索與整合進行知識共構。以上結果顯示，知識翻新環境提供了一個開放討論的空間，讓學生願意分享想法，使想法有改進的可能；此外，也讓學生在過程中，對於想法概念的理解更多元，也更認同想法是具體且共有的社會實體。 / The purpose of this research was to investigate the effects of knowledge building pedagogy on college students’ understanding of the concept of ‘ideas’. Knowledge building principles (Scardamalia, 2002) and Knowledge Forum (KF) technology were employed to support and record the process of idea generation, idea co-construction and idea elaboration. This study adopted a case study design. Participants were 41 undergraduates who engaged in a course titled “Introduction to Living Technology” for one semester. Data sources and analyses included: (1) students’ online activities in KF, which was assessed using Analytic Toolkit and social network analysis in order to understand the process of interaction among students; (2) students’ online discourse data, which were scored using idea evaluation scale (see Dean, Hender, Rodgers & Santanenm, 2006) including four dimensions--novelty, workability, relevance and specificity; moreover, students’ ideas were content-analyzed using practical inquiry model including four levels--triggering event, exploration, integration and resolution (Garrison, Anderson & Archer, 2001); (3) pre-post survey with five open-ended questions that assessed students’ understanding of the concept of ‘idea’ in several aspects (e.g., definition, purpose, and source); moreover, students’ answers were analyzed by open coding using Popper’s three-world epistemological framework. The findings were as follows: (1) knowledge building and technology was found helpful for students to generate ideas, facilitate idea interaction and improve ideas; (2) engaging students in knowledge building was likely to enhance students’ diverse perceptions about ideas, and students tended to see ideas as improvable objects of value for potential knowledge construction; (3) idea co-construction processes, emphasizing both the quality and quantity of ideas, were also likely to enhance students’ diversified perceptions about ‘ideas’; (4) knowledge building environment was beneficial for students to implement knowledge co-construction through exploration and integration. To conclude, knowledge building environment provided an open space for students to share ideas and made idea elaboration more easily; besides, via co-construction process, students’ understanding of the concept of ‘idea’ becomes more diverse, and tended to recognize ideas as tangible, social epistemic entities.