| In the science and engineering education, experiment teaching is anecessary process in the teaching activity. Experiment teaching isimportant for training a student's actual operation ability, creative abilityand the ability of solving problem. However, there are some problemsexisting in the experiment teaching. Some teaching results are not quitewell and some experiments can't be operated in the actual experimentteaching process because of various conditional restriction. The researchbackground of this thesis just comes from above. The main purpose ofthis thesis is how to use the modern education teaching theory with thecomputer and network techniques to reform the traditional experimentteaching mode and improve the experiment teaching result.The first part of this thesis researches on the Theory of Skill-learning,the Theories of study migration and Constructivism under the techniquecondition. And it provides theory basis for designing principle andstrategy of virtual experiment teaching-assist system.Virtual Reality Modeling Language is the second generation networkvirtual reality mold language that develops quickly in recent years. Ittakes a type of 3D ability into the world-wide-web, and it is a kind ofcross-platform language that has ability of analyzing the 3D web page. Itis the international standard of the 3D web page. The thesis analyzes thesuperiority and possibility of using VRML as the tool to develop thenetwork virtual experiment form technique and the teaching theory angle.According to the needs of teaching and making use of VRML'ssuperiority, the VRML experiment teaching assistance system is designedand the experiment of taking a Laser Holography picture can be operatedin this system. This virtual system takes the true experiment instrumentsas a mold for the virtual instruments. Combining the VRML with the3DMAX technique, this system rises up 3D stereoscopic scene like thereal experiment environment; With the help of rich Sensors of VRML andVRML's integrated characteristic for the JAVA language, the systemactualize controlling the virtual experiment instruments and visiting theWeb. The teaching strategies of Anchored Instruction and Random Access Instruction have been used in this system. Thought the VRMLvirtual experiment system and network, student is able to accept a guide,complete an experiment individually and independently and teacher canmanage, guide and control the whole experiment teaching process. Thesystem becomes strong support for real experiment teaching and learning. |
