在线社区中的“仙女环”参与模型研究

开放教育资源运动正由注重资源共享逐渐转向注重开放学习,文章介绍了在线学习社区中用户的参与发生在两个层面:参与的"可视"层,可以有不同的参与模式;要素交互的"不可视"层,与自然界中发生的菌根快速传播的地下网络导致的蘑菇"仙女环"非常类似。这种多维度的要素交互影响着用户的参与意愿和参与行为。文章认为参与的"仙女环"模型为分析和发展网络社区提供了非常丰富的工具,对中国网络学习社区及精品课程的研究和发展有非常重要的意义。     

基于JSP网上购书系统的设计与实现

结合网上购书系统的开发过程,分析了基于B/S结构的信息管理系统的基本特征和运行机制,具体介绍了基于JSP技术的系统设计与实现过程,并对系统设计过程中采用的一些主要技术进行了探讨。     

基于UML高职院校在线考试系统的设计

以高职院校在线考试系统为研究背景,阐述了基于UML的需求描述、系统分析、详细设计和结构设计的方法,在RationalRose环境下运用UML对在线考试系统进行分析建模,搭建了在线考试系统分析设计模型,为实现高职院校在线考试系统打下良好的基础。     

《工程材料及成形技术》教学改革的行与思

在对“工程材料及成形技术”及其实验课的课程教学改革实践中,增加了在线课堂学习,丰富了实验课的教学内容,据此对课堂教学的形式和考评机制进行了改革和实践探索,并对教改效果进行了反思。实践证明,教改在提升学生自主学习能力的同时,也有一些问题值得我们去反思、探索与改进。     

跨越时空的文化撒播——论网络文学的特征

网络和网络文学是伴随着西方“后现代化”而孕育、萌芽、成长、繁荣起来的，因而不可避免地带有后现代主义的特征，诸如认知上的反理性主义、道德上的犬儒主义和感性上的快乐主义。尽管学术界对网络文学众说纷纭，莫衷一是，但网络文学大量客观存在着。网络文学具有以下特征：创作主体的网民化；创作动机的娱乐化；文本特征的立体化；作者读者的互动化；文本传播的快捷化：文本价值的多元化。网络写手大多年轻化、城市化、小资化，主要为白领阶层和大学生，往往从事网络、金融、法律、编辑、广告、艺术设计等工作，网络技术异常娴熟。网络文学自诞生之日起就带有游戏的味道，不少网络写手就曾坦言，自己的创作就是为了自娱娱人。在创作主题和思想内容上，网络文学回避崇高，消解载道，拒绝代言，推卸责任，追求愉悦。在创作手段上，网络写手广泛运用“拼贴”、“意识流”、“蒙太奇”等艺术表现手法，使网络作品呈现出前所未有的独特魅力和意蕴。网民的点击、评说以及网站的定期TOP排行榜大大激发了网络写手的创作热情，网民的参与不仅仅表现在阅读的选择和评点上，有时更直接地表现在参与创作上，即网民的回帖和评论，也成为网络小说的有机组成部分。文本传播的快捷化表现在作品面世的快捷化、读者反馈的快捷化和文本更新的快捷化。网络文学活动的核心是网民的创作、阅读、评论几乎同时展开，同步进行，共同完成，所以它比以往任何传媒对文学的推动力、冲击力都大。     

南京电大开放教育网上教学现状分析与对策

网上教学工作是开放教育试点项目的中心工作之一，网上教学是实施开放教育课程并保证开放教育质量的关键因素，南京广播电视大学十分重视网上教学工作和网上教学效果研究。文章依据南京电大网上教学检查和网上教学问卷调查结果与分析，从加强网上教学资源建设、完善网上教学支持服务等六个方面。提出了促进网上教学工作的策略与措施。     

网上购物者购买决策过程的心理机制探析

近年来网上购物成为一种时尚,为满足不同层次的需要,消费者产生网上购物需求,这促使消费者去网上搜集产品信息,此时,注意、感知觉、情绪、记忆都会影响信息的搜集;接着人对林林总总的信息进行评价,当其感知风险低于可接受水平时,才会做出购买决策;然而又有很多心理因素影响决策甚至行为过程;最后消费者使用商品时会进一步评价该商品,这反过来会影响其新的购买需求的产生.     

Social Constructivism and Asynchronous Text-Based Discussion: A Case Study with Trainee Teachers

The paper reports a case study using asynchronous text-based discussion. It considers the role of the tutor and discusses the extent to which online discussions can facilitate social constructivist approaches to instruction and the creation of knowledge. Participants were 17 trainee teachers studying on a post graduate teaching course. The asynchronous text-based discussion (using e-blackboard) focused on planning for progression in children's learning in history and culminated in the trainee teachers writing individual assignments on the topic. The paper analyses the different types of contributions made and reports on the trainees' evaluations of the benefits and limitations of using e-blackboard. It concludes with recommendations and areas for further research.     

在线课程质量观和质量要素的质性研究--基于专家、实践者和学习者的视角

本文采用扎根理论研究方法,通过对学术专家、实践者和学习者三类相关群体的访谈,调查高等教育和继续教育在线课程相关人群关于在线课程的质量观与对质量构成的认识,探索在线课程质量框架与要素,以期为促进人们对在线课程质量的共识,为改进和优化现有在线课程质量标准提供参考。研究通过对20位受访者累计22万字访谈文本的编码分析,发现四种质量观--服务质量观、系统性质量观、目标性质量观和增值性质量观,并定义出设计开发与实施运行两大类的九个在线课程质量要素--课程目标、课程内容、学习过程、学习支持服务、学习评价、媒体与技术环境、实施效果、改进发展和社会影响。其中,课程目标、学习内容与实施效果被定义为核心要素。本文基于TF-IDF关键词统计方法对三类群体的在线课程质量观差异进行了分析,并结合已有远程教育质量观和在线课程质量标准相关成果对本研究发现和定义的在线课程质量观、质量框架和质量要素进行了讨论与反思。     

A sociocultural perspective on mediated activity in third grade science

This ethnographic study of a third grade classroom examined elementary school science learning as a sociocultural accomplishment. The research focused on how a teacher helped his students acquire psychological tools for learning to think and engage in scientific practices as locally defined. Analyses of classroom discourse examined both how the teacher used mediational strategies to frame disciplinary knowledge in science as well as how students internalized and appropriated ways of knowing in science. The study documented and analyzed how students came to appropriate scientific knowledge as their own in an ongoing manner tied to their identities as student scientists. Implications for sociocultural theory in science education research are discussed. John Reveles is an assistant professor in the Elementary Education Department at California State University, Northridge. He received his Ph.D. from the University of California, Santa Barbara in 2005. Before pursuing his Ph.D., he worked as a bilingual elementary school teacher for 3 years. His research focuses on the development of scientific literacy in elementary school settings; sociocultural influences on students' academic identity; equity of access issues in science education; qualitative and quantitative research methods. Within the Michael D. Eisner College of Education, he teaches elementary science curriculum methods courses, graduate science education seminars, and graduate research courses. Gregory Kelly is a professor of science education at Penn State University. He is a former Peace Corps Volunteer and physics teacher. He received his Ph.D. from Cornell in 1994. His research focuses on classroom discourse, epistemology, and science learning. This work has been supported by grants from Spencer Foundation, National Science Foundation, and the National Academy of Education. He teaches courses concerning the uses of history, philosophy, sociology of science in science teaching and teaching and learning science in secondary schools. He is editor of the journal Science Education. Richard Durán is a Professor in the Gevirtz Graduate School of Education, University of California, Santa Barbara. His research and publications have been in the areas of literacy and assessment of English Language Learners and Latino students. He has also conducted research on after school computer clubs, technology and learning as part of the international UC Links Network. With support from the Kellogg Foundation, he is implementing and investigating community and family-centered intervention programs serving the educational progress of Latino students in the middle and high school grades.