多元化媒体资源适应性推送及可视化序列导航研究  

Research on Adaptive Recommendation of Multimedia Materials and Sequence Visualization

作　　者：姜强[1] 赵蔚[1] 

机构地区：[1]东北师范大学计算机科学与信息技术学院,吉林长春130117

出　　处：《开放教育研究》2015年第2期106-112,共7页Open Education Research

基　　金：教育部人文社科2012年度项目"自适应学习系统理论模型建构及其效果实证研究"(12YJCZH086);全国教育科学"十二五"规划2013年度教育部重点课题"可视化技术支持下学科知识自主学习模型研究"(DCA130224);教育部人文社科2014年度项目"基于知识图谱的开放学习资源自主聚合研究"(14YJA880103);吉林省教育厅"十二五"社科2015年度项目"碎片化学习视域下基于智能手机的大学生移动学习认知及对策研究"(1405073);东北师范大学哲学社科2014年度青年基金团队项目"吉林农村中小学教师远程学习适应性研究"(130021049);"中央高校基本科研业务费专项资金"

摘　　要：多媒体资源能够引起学习者的注意和兴趣,有利于知识长时记忆,提高学习动机和学习成绩。然而,根据认知负荷理论和资源有限理论,针对同一知识点和学习目标的多媒体资源同时且无序呈现,容易产生学习迷航,分散注意力,增加认知负载,影响学习情绪,进而影响学习成绩。因此,如何将最适合的媒体资源及序列呈现给学习者是值得研究的问题。本研究针对动画和视频、仿真和游戏、学习文档、图片和图表、音频等五类媒体资源,采用主观问卷调查和客观学习行为分析,研究学习风格与五类媒体偏好的选择关系及相关性问题,从而建构基于VARK学习风格模型的多媒体资源适应性推送模型及其可视化序列导航。研究结果表明,学习风格与媒体资源具有一定相关性,视觉型学习者更愿意观看动画和视频,听觉型学习者喜欢听音频资料,读写型学习者愿意选择阅读学习文档,动觉型学习者倾向在仿真游戏中学习。根据学习风格,适应性地推送媒体资源及其可视化序列导航,可促进学习者知识建构、自组织的有意义学习及个性发展。此外,研究成果亦可为翻转课堂、MOOC等新学习模式的个性化设计提供新思路。Multimedia materials may enhance learning attention,long- term memory,motivation and performance.However,based on cognitive load theory,if a student pays too much attention to selecting appropriate multimedia materials,it can cause cognitive overload,which means the total intended processing exceeds a student＇s available cognitive capacity. If the multimedia materials presented to the students are disordered,they may make students feel disoriented and frustrated,and may result in a poor learning experience. Therefore,it is worth studying how to recommend the adaptive multimedia resources and appropriate sequencing to a learner. Especially,considering students＇ learning styles,the system should take into account a student＇s preferences,recommend appropriate learning materials depending on the types of learners（ e. g. verbal and visual learners）,and guide students through the learning process.In this paper,five types of resource（ animations and videos,simulations and games,learning documents,pictures and diagrams,and audio learning materials） are provided. We chose the VARK learning style model frequently used in the field of adaptive learning environment as a theoretical model. The preferences and correlation between learning style and multimedia materials are discussed based on experiment research using questionnaire investigation and learning outcome analysis from 60 student participants. The research results show that learning style is related to the preference to multimedia material. For example,visual learners prefer the media types of animations and video,while verbal learners prefer the media types of audio to study,Read / Write learners prefer the media type of learning documents and kinesthetic learners prefer the media types of simulations and computer games. Finally,multimedia materials preference recommendation model and sequence navigation are built based on the VARK learning style model and empirical research results.In summary,the match between learning styles and types of materials ca

关 键 词：学习风格 多元化媒体资源 可视化序列 适应性推送 

分 类 号：G434[文化科学—教育学]