【作者】 张琦；

【导师】 林筑英；

【作者基本信息】 贵州师范大学 ， 课程与教学论， 2009， 硕士

【摘要】 随着计算机网络、多媒体技术和虚拟现实等技术的不断发展和完善,如何将虚拟现实与网络教学相结合,充分发挥两者的优势和潜力,成为当前网络教育研究及其应用的热门课题;如何模拟师生之间的教学活动,在网络上逼真的创建教学环境与人物,也是目前人们关注的前沿课题。本文研究了网络虚拟教学平台的基本理论,总结了虚拟现实应用于网络教学的优势及表现形式。详细论述了基于Web的VRML虚拟环境教学平台实现的理论基础、关键技术以及设计思想。本文重点研究基于ASP.NET和VRML的虚拟教学活动基本功能的实现方法,选取《计算机辅助教育》课程作为实现案例,实现并完成了该课程基本的教学任务,为最终形成网络虚拟教学系统平台提供了有力的支撑。首先对部分网络虚拟教学环境进行建模,以真实教室为对象,所有造型(多媒体教室、幕布、讲台、计算机、投影仪、黑板等)通过VRML Pad2.0、Cosmo Worlds以及3D Studio MAX构建,虚拟出一个逼真的虚拟多媒体教室;借助VRML对H-Anim标准进行描述,设计出虚拟教师。其次对虚拟教学活动进行了交互控制设计,利用ASP.NET制作出支持多用户交互和H-Anim标准的教学站点,实现了同步授课、辅导及测试等功能。本文所设计实现的基于Web的VRML虚拟环境教学平台,结合了VRML技术和ASP.NET技术的优势,利用ASP.NET技术在计算机远程辅助教学中的应用,将学生的交互引入WEB体系中,实现课程学习、文档提交、答疑与测试的网络化。利用VRML技术使学习者可在计算机上看到生动逼真的地物模型(人物、环境等),并且可以在虚拟的环境中实现使用、漫游等一系列与学习有关的活动,教学活动不再局限于有形的教室中,教学活动的空间和时间得到了无形扩展。在充分保证教学效果、节约教学成本的同时,有效的发挥学习者的主体作用,激发学习兴趣,丰富感性认识,启发思维,提高创新能力,改善学习方式。更多还原

【Abstract】 With the continuous development and improvement of computer networks,multimedia technology and virtual reality,How to combine the virtual reality and the network teaching and bring the superiority and the potential into full play has become a hot research topic of the current network education research and the application.How to simulate the teaching activities between teachers and students,create the realistic teaching environment and character on the network,is also the front topic which the present people pay attention.This paper has studied the network virtual teaching system’s elementary theory, summarized the superiority and the manifestation of the virtual reality to apply in the network teaching.A detailed study the key technologies,the design concepts as well as theoretical basis of teaching on VRML virtual environment based on Web.In this paper,a detailed study the method of the basic functions of a virtual teaching activities as well as the modeling and the interaction control design of the VRML virtual teaching environment based on ASP.NET and the VRML.Select the curriculum "Computer-Based Education" as the content uses this system to complete the basic teaching duty,provides the powerful support for the virtual teaching system platform.Firstly take the real classroom as the object,using VRML Pad2.0,Cosmo Worlds as well as 3D Studio MAX building the modeling(multimedia classroom,screen,platform,computer,projector, blackboard and so on) and building a realistic virtual multi-media classroom.Uses VRML to carry on the description for the H-Anim standard,designs the virtual teacher.Next has carried on the interaction control design to the virtual teaching activity,Using ASP.NET to create the teaching sites which is support multi-user interaction and H-Anim standard,realizes synchronized teaching,counseling and test.In this paper combined with the VRML and ASP.NET.Using the applications of ASP.NET technology in computer-aided teaching,introduces the interactions of students into WEB system,making the studying curriculum implementation,the document submission,the Q＆A and the test are working on the network.Pay more attention to the process which in the teaching and learning,supports the sharing virtual learning environment,and also supports the dynamic,collaborative activities in teaching and learning,the teaching activity is no longer confined to the visible classroom,the teaching space and the teaching time obtained the invisible expansion.The VRML causes the student to be possible to see the vivid features model on the computer(character,environment and so on),it also can be realize the use, roaming in the virtual environment and other study-related activities.While the full guarantee teaching effect,frugal instruction costs,plays learner’s main body role effectively,stimulates interest in learning,enriches the perceptual knowledge,inspires the thought,and improves the innovation ability and learning.更多还原