E-learning中基于Web的概念图协同创作系统研究

概念图是学生协作知识建构的一种有效支持工具,然而在Web环境下概念图的协同创作系统的研究却并不多见。鉴于此,文章通过对协作学习中概念图的理论研究,分析了概念图协作创建过程中学习者的认知过程,设计了基于概念图的协作知识建构的理论模型,设计了概念图协作创作系统的功能模型和动态模型,介绍了基于Flex和FMS技术的系统实现方案,讨论了系统功能和实现过程。文章的研究成果能丰富协作知识建构的理论研究,推进概念图在网络协作学习实践中的应用。     

Content analysis of computer conferencing transcripts

Within the field of higher education, there are situations where the learner is not well served in a classroom setting. Problematic issues such as scheduling, critical mass, time, pace and location have the potential to be counterbalanced by e-learning. Within this, the asynchronous nature of today's online learning environments and computer conferencing tools have popularly been claimed to offer tremendous benefits for learners who are willing to take responsibility for their own learning, to progress at their own pace, and interact with their online teacher to get immediate feedback on their learning and progress. Indeed, increasingly, educators today are very keen to exploit some of these new technologies for the benefit of their learners. It is argued in this article that there is a need to address the practice and research of asynchronous computer mediated conferencing. As conferencing tools become an increasingly common feature in students' experience, teachers need to have an understanding of how these tools facilitate the formation and maintenance of collaborative learning communities.     

基于问题解决的网络协作学习活动设计研究简

基于问题解决的网络协作学习越来越受到CSCL领域研究者的重视。本研究利用设计研究的方法,设计并实施了一轮基于问题解决协作学习活动。数据分析显示50％以上的学习者认为问题解决网络协作学习活动可以发展他们的问题解决能力,并使之获得丰富的在线学习体验。学习者对任务和问题设计的满意度较高,对资源、工具及角色的满意度相对较低。设计存在的主要问题在于角色之间缺乏有效衔接,以至于不同角色的学习者难以协作完成任务。资源与工具缺乏使用提示,以至于学习者难于将资源与工具与具体的学习任务进行整合。     

知识建构的有效途径：基于作品创作的协作学习

基于作品创作的协作学习以小组共同创作作品的形式开展协作学习,将实践创作与协作学习密切地结合起来,能有效发挥实践参与和深度合作的双重作用,以促进学习者对知识的深度建构,提高学习者的实践能力,以及促进创新知识产品的形成.文章在阐述基于作品创作的协作学习典型实践案例的基础上,分析了基于作品创作的协作学习的特征,并剖析了其对促进学习者知识建构的意义.     

How research on self-regulated learning can advance computer supported collaborative learning / El papel de la investigación sobre aprendizaje autorregulado en el desarrollo del aprendizaje colaborativo asistido por ordenador

Abstract

Learning in and for the twenty-first century requires motivational competence and effective learning strategies in individual and collaborative learning settings. Being able to strategically regulate one’s own learning and that of others is a vital and increasingly important skill. Most learners are not equipped to regulate and direct their own learning or might lack the motivation to do so. Additionally, if self-regulation of learning is difficult at the individual level, it becomes even more difficult when interacting with peers and in teams, known as co-regulation and shared regulation. Fortunately, recent research has shown that regulation can be both learned and also often supported with self-regulation tools and/or environments. This paper discusses recent trends in self-regulated learning research, focusing especially on regulating learning in computer supported collaborative learning. It is concluded that today’s education should help learners become aware of their strengths and weaknesses in a learning situation, so as to help them develop skills and strategies to continue to learn throughout their lives.     

Teaching collaborative skills with a group leader computer tutor

This paper discusses how a group leader computer tutor may aid students in learning collaborative skills in a co-operative learning environment. However, students need to learn collaborative skills and practice using them. The group leader computer tutor discussed in this paper is designed on the principles of co-operative learning, intelligent tutoring systems and computer-supported collaborative work within an intelligent collaborative learning system (ICLS). The group leader aims to facilitate group work on the task level and to teach students how to use collaborative skills in the discussion level as students work on networked computers in the Jigsaw method of co-operative learning. The ICLS and its group leader were used by two classes at a liberal arts university. Qualitative research shows that the students' co-operative attitudes changed and academic achievement improved from pre- to post-treatment. Students, especially, used the communication skill of openness in comment type discussions. The students enjoyed working collaboratively through the ICLS and their teachers thought that the experience was valuable for them.     

Supporting Communication in a Collaborative Discovery Learning Environment: the Effect of Instruction

We present a study on the effect of instruction on collaboration in a collaborative discovery learning environment. The instruction we used, called RIDE, is built upon four principles identified in the literature on collaborative processes: Respect, Intelligent collaboration, Deciding together, and Encouraging. In an experimental study, a group of learners (ages 15–17) receiving this instruction was compared to a control group. The learners worked in dyads on separate computers in a shared discovery learning environment in the physics domain of collisions, communicating through a chat channel. Qualitative and quantitative analyses of the logged actions in the learning environment and the chat protocols showed that the RIDE instruction can lead to more constructive communication, and improved discovery learning activities, as expected, although no direct effect on discovery learning results was found. This study shows the benefits of providing instruction on effective communication and the learning process in a collaborative discovery learning situation.     

The Complexity of Learning: Exploring the Interplay of Different Mediational Means in Group Learning with Digital Tools

The relationship between the different mediational means for supporting students’ learning with digital tools in science group work in a Norwegian lower-secondary school is examined. Analyses of teacher-student and student-student interactions are located in cultural-historical theory and draw on Galperin’s conceptualisation of learning processes. Findings show that digital tools, task design, peer collaboration, and teacher’s interventions dialectically interplay to shape how learners use mediational means: (1) digital tools are the resources that enable students to explicate their (mis)understandings; (2) compare-and-contrast tasks promote analytical thinking; (3) peers present themselves as resources who promote development of conceptual understanding; (4) the teacher guides learners’ attention towards the potential of the mediational resources, elicits, organises, and structures students’ knowledge. The dialectical interplay of these mediational means creates a system that supports and guides students’ learning.     

基于BBS的异步协作学习互动研究

网络环境下的异步协作学习方式越来越受到教育工作者的关注,因为它能够为学习者提供延时性交流与协作环境,便于学习者能够以小组或个人的形式参与到学习讨论之中。为了探讨基于BBS的异步协作学习互动过程,通过以案例形式进行实证性研究,其中,运用了会话内容分析法、调查法等方法,对异步协作学习活动中的帖子总体数量情况、各组发帖时间情况、帖子间关系情况以及基于知识建构模型的异步协作学习过程进行了详细的分析。研究结果表明,异步协作学习活动促进了学生的自主学习能力的发展,但是在活动中存在的问题值得教育工作者的思考。因此,研究对于指导异步协作学习互动活动的开展具有积极的参考价值。     

Round or rectangular tables for collaborative problem solving? A multimodal learning analytics study

The current knowledge of the effects of the physical environment on learners’ behaviour in collaborative problem-solving tasks is underexplored. This paper aims to critically examine the potential of multimodal learning analytics, using new data sets, in studying how the shapes of shared tables affect the learners’ behaviour when collaborating in terms of patterns of participation and indicators related to physical social interactions. The research presented in this paper investigates this question considering the potential interplay with contextual aspects (level of education) and learning design decisions (group size). Three dependent variables (distance between students, range of movement and level of participation) are tested using quantitative and qualitative analyses of data collected using a motion capture system and video recordings. Results show that the use of round tables (vs rectangular tables) leads to higher levels of on-task participation in the case of elementary school students. For university students, different table shapes seem to have a limited impact on their levels of participation in collaborative problem solving. The analysis shows significant differences regarding the relationship between group size and the distance between students, but there is no substantial evidence that group size affects the level of participation. The findings support previous research highlighting the importance of studying the role of the physical environment as an element of learning design and the potential of multimodal learning analytics in approaching these studies.     

Knowledge organization through multiple representations in a computer-supported collaborative learning environment

Computer-supported collaborative learning (CSCL) environments provide learners with multiple representational tools for storing, sharing, and constructing knowledge. However, little is known about how learners organize knowledge through multiple representations about complex socioscientific issues. Therefore, the purpose of this study was to investigate learners’ knowledge organization (KO) through multiple representations in a CSCL environment. We designed a learning unit on nuclear energy and implemented it with a group of 20 college students. The participants used a web-based hypertext KO platform that incorporated three representational modes: textual, pictorial, and concept map. The platform interlinked learners’ knowledge entries based on similar keywords. Utilizing mixed methods research we analyzed the individual entries and the knowledge base to determine KO both at the individual and the collective levels. We found that the density of the knowledge base was high; the learners mostly benefited from their text- and concept map-based entries, though the picture-based entries were also an important means for connecting entries with similar content and hence creating a dense knowledge base. Our results suggest that KO with multiple representations can create a more comprehensive knowledge base. Using distinct analytical approaches will allow CSCL researchers to better identify KO both at the individual and collective levels.     

Strengthening collaborative capacity: experiences from a short,intensive field course on ecosystems,health and society

A key capacity for engagement in the emerging field of ecohealth is the ability to work collaboratively. Between 2008 and 2010, the Canadian Community of Practice in Ecosystem Approaches to Health collectively designed and delivered three foundational, intensive, field courses. This paper presents findings derived from both quantitative and qualitative student course evaluation survey data. New insights arise around: the diverse opportunities for learning collaboratively in order to tackle complex socio-ecological issues, the social dynamics of collaborative relationships and learning, and the learning challenges that arise during intensive field courses. The lessons learned from these foundational years have enhanced understanding of the interrelated contributions to collaborative learning and relationship building and their relevance to addressing issues spanning ecosystems, health and society.     

在线协作学习对感知学习的影响

在线学习环境缺乏人际交互的缺点在一定程度上决定了在线学习需要依靠学习者之间的交流和协作才能维持。对于在线学习的实际成效,研究者已经开发了不同的测量工具和评价方法来对其进行测量,但由于这些工具和方法之间缺乏内在一致性,使得针对学习的直接测量十分困难,因而感知学习常被用作反映学习的指标,也被视为衡量网络教学成功的重要标志之一。影响感知学习的变量很多,既有个体层面的,也有小组层面的。以天津职业技术师范大学本科生参与的网络课程“远程教育学”为例,运用逐步回归方法进行的实证研究表明：个体层面的变量——个体的协作学习态度、与熟人的交流能力,小组层面的变量——小组任务的相互依赖、小组任务的有效分配以及社会临场感都会显著影响学习者的感知学习。     

基于TAM模型的网络协作交流工具接受行为研究

合理接受网络协作交流工具,能提高师生交互效果,促进协作效率。为探讨网络协作学习中影响学习者接受交流工具的主要因素,本文根据技术接受模型(TAM)理论,提出了基于TAM的协作交流工具接受行为模型,并对理论模型和研究假设进行了分析。研究结果表明,技术特征、任务特征和个体差异显著影响个体的感知有用性和感知易用性;学习环境显著影响个体的感知有用性和接受行为,感知有用性和感知易用性显著影响接受意愿,而接受意愿又对接受行为有显著影响。研究结果从实证角度对协作交流工具接受行为模型提供了支持,也为优化协作学习设计提供了依据。     

Learning with collaborative inquiry: a science learning environment for secondary students

When inquiry-based learning is designed for a collaborative context, the interactions that arise in the learning environment can become fairly complex. While the learning effectiveness of such learning environments has been reported in the literature, there have been fewer studies on the students’ learning processes. To address this, the article presents a study of science learning in a computer-supported learning environment called Collaborative Science Inquiry (CSI), which integrates guided inquiry principles for activity design, employs modelling and visualisation tools for promoting conceptual understanding and incorporates key computer-supported collaborative learning (CSCL) elements for enabling students’ collaboration. With the aim of understanding the process of students’ conceptual changes supported by the CSI learning environment as used in a secondary school, data on students’ test achievements, responses to learning tasks and peer discussions in collaboration were collected, analysed and discussed. The results of the qualitative and quantitative data analysis indicated that guided inquiry coupled with CSCL elements facilitated by the CSI system can engage students in inquiry activities and promote their conceptual understanding in a progressive way.     

Interaction and Collaboration Using an Intelligent Collaborative Learning Environment

The goal of this research is to design and prototype an intelligent collaborative learning environment. Within this environment, we study synchronous interaction among group members (students) working on a problem/project. Students use an Intelligent Collaborative Support System (ICSS) and a shared activity space: the Tulka Whiteboard. Two main interaction spaces have been implemented: a planning-communication space and a production space. Dialogue and negotiation are supported through the ICSS permitting exchange and evaluation of free-text communication messages that are initiated by students choosing sentence openers from a menu. Using the whiteboard, a virtual room is dedicated to a group of students who share documents, annotations on documents, drawing tools, and text tools. Each group is provided a dynamic assessment of their collaborative skills based on a communication skills model.     

智能教学系统中支持协作学习的群体感知模型

自主学习和协作学习是相互促进、相互依赖的网络学习方式。然而,目前典型的网络学习系统(智能教学系统和计算机支持的协作学习系统)大多将自主学习和协作学习强制分离,忽视了自主学习过程中协作交流的激励作用以及协作学习过程中学习者的自主学习需求。因此,扩展现有的智能教学系统,构建一个自主学习和协作学习有机融合的数字化学习环境,有助于更好地满足网络环境下师生的学习需求。支持协作学习的群体感知模型由群体感知信息、群体感知本体和群体感知规则三部分组成,采用本体技术建模协作感知信息,运用语义Web规则语言刻画协作感知机制,为实现协作学习的信息交互提供通用模型。基于该模型构建的智能教学系统,在原有ITS自主学习环境的基础上,扩展了参与者可以相互感知、相互交流的协作学习模块,实现与现有智能教学系统的无缝整合,为开发具有协作学习功能的智能教学系统提供了技术参考。     

基于Internet的协作学习环境系统的设计与实现

建构主义学习理论强调协作学习对意义建构的重要作用,同时重视学习环境的设计,认为学习者在一定的环境中利用各种工具和信息资源完成意义的建构。Internet以诸多优势为开展协作学习在提供了有效的环境。该文分析了基于Internet的协作学习进程和环境系统目标,提出了一个基于Internet的协作学习环境系统的设计模型,并给出其实现方法。作为应用,作者简要描述了《摄影构图》在该系统上学习的过程。     

Inclusive dyslexia-friendly collaborative online learning environment: Malaysia case study

Currently available web page accessibility guidelines focus more on reading and writing, with inadequate attention to other aspects of online learning such as computer-mediated communication. This study aims to explore the engagement of Malaysia secondary school students with dyslexia and students without dyslexia on various synchronous and asynchronous communication interaction technologies in an online collaborative learning environment. Multiple case within subject qualitative study was employed to investigate the engagement of students using a semi structured interview guideline. The findings revealed that (1) text chat is unsuitable for learning discussion for all learners, (2) forum affords self-paced and organized formal discussion for most learners and (3) video conferencing is suitable for interactive face-to-face, verbal discussion for most learners.     

Fostering Students’ Collaborative Learning Competencies and Professional Conduct in the Context of Two Gross Anatomy Courses in Veterinary Medicine

Collaborative learning has been used in anatomy courses to support students’ learning of challenging topics but the success of group work depends significantly on the students’ ability to communicate in a professional manner. Veterinary students’ experiences with tasks related to collaborative learning and professional conduct were studied by comparing learning collaborative competences and pedagogy, as well as perceived positive and challenging aspects, in two gross anatomy courses. Both qualitative and quantitative data were collected from students’ experiences of course assignments and collaboration, as well as from self-evaluated collaboration competence development. Trying things out oneself, practical application and professional conduct were positively highlighted particularly in the first-year course (myology and arthrology) group work and learning from others more in the second year (topographical anatomy). Various group work challenges, often relating to practical matters or communication, were the key concerns for students. The main difference between the two courses in learning of collaborative knowledge work competencies appeared to relate to the nature of the group work assignment. The topography course included the element of collaboration in preparing a presentation and teaching session for the rest of the class. Interestingly, students on the myology and arthrology course gave more positive comments on professional conduct than the students on the topography course despite the fact that the latter course included more practical elements relating to their future profession.