适应性E-Learning系统:现状与趋势

适应性E-Learning是E-Learning发展的一种新的趋势,而适应性E-Learning系统也代表了E-Learning系统发展的一种潮流。文章首先介绍了适应性E-Learning系统的发展历史和典型案例,并在此基础上呈现了适应性E-Learning系统的通用构架和技术模型,最后阐述了适应性E-Learning系统的发展趋势。     

Learning Objects Based Framework for Self-Adaptive Learning

How learners can build their own knowledge, which is precisely tailored to their needs and background? This is precisely the question to which this paper attempts to answer by providing a framework for a flexible object-based e-learning environment. The paper recognizes that the general learner modeling alternative is an intractable problem. However, it suggests learning objects construct used as building blocks to root out individual learning deficiencies. The paper also provides an algorithm to construct individual learning routes that are adjusted to learners' profile as well as an open implementation to accommodate the integration of various learning sources.     

Computer-related self-concept: The impact on cognitive achievement

Teaching and learning in outreach laboratories is suitable for completion of multiple hands-on experiences of students. Digital contents may support and further enrich individual haptic experiences. Nevertheless, individual variables such as computer-related self-concepts are supposed to intervene with the cognitive learning success within this context. This potential interrelationship was a major focus of our study completed in an outreach laboratory where an eLearning module specifically was integrated into a hands-on centered gene-technology module. By monitoring cognitive knowledge levels and simultaneously applying the computer-related self-concept of 162 German students (11th grade), an increase in knowledge became apparent independently of individual computer-related self-concepts. This missing relationship exemplarily fosters the assumption that computer-supported learning may suite every student regardless of computer-related self-concept scores.     

学习对象内容本体描述框架研究

可重用性是学习对象不同于其他教学资源构件的重要特性,是其价值得以实现的重要条件,也是其成为学术界研究热点的重要原因之一;而本体由于其概念化、共享的本质特征,可以用于描述和表达学习对象,实现学习对象的共享与重用.本文采用文献分析方法,指出了只通过本体描述来丰富学习对象元数据的不足之处,提出以语义网的本体概念本身作为研究切入点,通过建立学习对象本体描述框架,对学习对象内容及结构进行本体描述,以实现学习对象中各成分的重用.     

Adaptive Human Scaffolding Facilitates Adolescents’ Self-regulated Learning with Hypermedia

This study examines the effectiveness of three scaffolding conditions on adolescents’ learning about the circulatory system with a hypermedia learning environment. One hundred and eleven adolescents (n = 111) were randomly assigned to one of three scaffolding conditions (adaptive scaffolding (AS), fixed scaffolding (FS), or no scaffolding (NS)) and were trained to use a hypermedia environment to learn about the circulatory system. Pretest and posttest data were collected to measure the qualitative changes in students’ mental models of the topic and quantitative changes in their declarative knowledge. Verbal protocols were collected during the 40-minute learning task to examine how each condition affected the way in which students regulated their learning. Findings revealed that learners in both the AS and NS conditions gained significantly more declarative knowledge than did those in the FS condition. Also, the AS condition was associated with shift in learners’ mental models significantly more than the other conditions. Associated with these significant shifts in their mental models, learners in the AS condition regulated their learning by planning and activating prior knowledge, monitoring their cognitive activities and their progress toward learning goals, using several effective strategies, and engaging in adaptive help-seeking. By contrast, those in the NS condition used fewer effective strategies, while those in the FS regulated their learning by using several regulatory processes which seemed to impede their learning. Implications for the design of scaffolds for fostering students’ self-regulated learning with hypermedia are presented.     

Incremental validity of thinking styles in predicting academic achievements: an experimental study in hypermedia learning environments

The study examined the incremental validity of thinking styles in predicting academic achievement after controlling for personality and achievement motivation in the hypermedia‐based learning environment. Seventy‐two Chinese college students from Shanghai, the People’s Republic of China, took part in this instructional experiment. The End‐Of‐Semester test was designed to examine the students’ achievement in the course of General Psychology. The results partially supported the hypotheses concerning the relationships between students’ Type I and II thinking styles and their academic achievement in Type I test (including analysis, problem‐solving, and essay tests) and Type II test (including multiple‐choice and cloze tests), and showed that some Type III styles were significantly related to their academic achievement. Hierarchical regression analysis indicated that the capacity of thinking styles for explaining and predicting academic achievement was sometimes over and above the sum of personality traits and achievement motivation. Implications for educational practice are discussed.     

超媒体环境下自主学习有效干预模式研究——扶助式学习与英语阅读

近年来,自主学习逐渐成为学术界的一个热点问题。然而,超媒体环境下自主英语学习的有效干预模式研究却为数不多。本研究探讨超媒体环境下扶助式学习与英语阅读的关系,某综合性高校经选取的某班30名大学本科学生被随机分为两组：即无扶助学习组（NS）及概念建构组（CS）,均要求在半小时的时间内在超媒体环境下学习有关美国文化的内容。数据收集工具为有声思考法。结果显示,30分钟的自主阅读过程中,CS组的学生无论是在学习计划、学习监控,还是学习策略的使用上,都显著的高于NS组的学生;两组同学在各项学习监控指标上都呈下降趋势。研究结果还证明,有声思考法是考察超媒体环境下自主阅读过程的有效方法。     

超媒体在教学中的应用

从超本和超媒体的一般概念出发．探讨了计算机辅助教学以及超媒体网络这两种超媒体形式在教学中的应用．并分析了超媒体的应用前景。     

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。     

国内外主流自适应学习系统对比研究

自适应学习系统是一种针对个体学习过程中的差异提供适合个体特征的学习支持的学习系统.将自适应学习系统进行对比,有利于了解系统之间的区别及不足.本文围绕着三项自适应功能对国内外主流的自适应学习系统进行比较研究,再结合国内外自适应学习系统的现状,揭示国内外自适应学习系统各自的优势以及不足,以期为国内自适应学习系统未来的发展提...     

AIDA: a methodology independent support tool for educational software authoring

Many authoring tools have been proposed in an attempt to find more effective ways to face the challenge of developing educational software. However, most of them are reported to be restrictive, since they are strongly connected to a specific educational software development methodology. The AIDA (Ambiente Integrado para o Desenvolvimento de Aplicações educacionais) authoring environment was developed at the University of Coimbra having as its main objectives the support of most of the activities involved in authoring and making educational software development easier. The AIDA system is based on a design module, i.e. a prototyping tool allowing the creation of Windows-based software, including multimedia features. The system assists evaluation activities and it caters also for support on translation and cultural adaptation, as well as on the reutilization of educational materials. The use of the AIDA environment is illustrated by three small examples using different development methodologies.     

Matrix algebra with hypermedia

A pilot hypermedia-based course on Matrix Algebra at Tampere University of Technology (TUT) is presented. Essential features, in addition to the lecture notes, are hypertext, computer-aided exercises, connections with existing mathematical software, interactive exercises, graphics, animation and video clips. Different learning strategies, based on concept, theorem and problem databases are discussed. Finally classroom experiences are presented.     

智适应学习系统的学习效果及其影响因素研究 ——基于2000—2020年60项实验与准实验研究的元分析

智适应学习系统究竟是否会对学习效果产生积极影响?哪些关键因素会影响智适应学习系统的学习效果?研究采用量化元分析的方法,对近20年来国际上有关智适应学习系统的学习效果的60项实验与准实验研究进行分析和评价.研究发现:(1)智适应学习系统提升学习效果的综合效应值为0.560,即智适应学习系统对学习具有中等程度的正向促进作用...     

E-learning平台中信息集成与互用的挑战及研究

随着信息通讯技术和网络技术的快速发展,E-learning(电子学习)成为知识时代下支持终生教育和普及教育的一个重要手段,其所依赖的学习平台也在技术的进步下日益改进.但目前的学习平台的服务功能方面依然有许多不足之处,还不能满足学习者的更多个性化需要.要让学习者更主动地、更动态地参与到学习过程中,学习平台要在适应性超媒体、语义网等相关技术的支持下,建立以服务为导向的系统架构思想,走向模块化和个性化.文章讨论了E-learning平台的发展及目前所面临的主要挑战,并总结了支持下一代学习平台的信息集成与互用的思路与技术.