ON DEVELOPMENT AND APPLICATION OF COMPUTER-ASSISTED INSTRUCTIONAL SYSTEMS FOR ENGINEERING EDUCATION
Date Issued
2004
Date
2004
Author(s)
Chou, Yu-Hur
DOI
zh-TW
Abstract
The purposes of this research are to investigate how to design and develop three computer-assisted systems to help teachers and students teach and learn in engineering education. They are the computer-assisted instruction software with the subject matter of concrete mixed design course, the courseware management system and the computer-assisted assessment system.
The computer-assisted instruction software adopts the scaffolding learning theory and the techniques of simulations for designing. This software is highly interactive, dynamically calculated and with automatic design function. The subject matter of this instruction is the concrete mixed design course including the concrete mixed design and the hot mix asphalt design. Based on the formative evaluation lasted for 2 months, the result indicates that this software is effective for teaching. This research also finds a new method, named as the transfer matrix method, to compute the optimization of aggregate blending. The transfer matrix method is more accurate for computation than the traditional method, such as the linear programming method.
For the courseware management system, a new algorithm for the course design based on the concept mapping technique is proposed. A course is separated into course units involving three levels that include the sub-node, node and chapter. The technique of concept mapping is used to represent a course unit for each level, and a tree-branching and hierarchical course structure is constructed. This algorithm is implemented to integrate different course structures as well as to provide useful parameters for managing the learning paths. The algorithm is allowed to produce scheduling diagrams that can clearly identify relationships among different course units, and help teachers discover any missing course units or links. Thus, the courseware management system involving this algorithm is more flexible when it comes to aggregating learning objects.
The computer-assisted assessment system consists of three well-designed sub-systems. First, a reply sub-system is developed based on the concept mapping technique. Second, a sub-system is developed for generating correct answers. And, its logic structure is based on a rule-based Petri-net module. Third, a sub-system based on the fuzzy mapping logic is developed for scoring and diagnosing students’ misconceptions. This assessment system is a useful and efficient tool for teachers in implementing computer-based examinations.
Subjects
課程管理系統
電腦輔助教學
電腦評量系統
工程教育
engineering education
computer-assisted instruction
computer-assisted assessment system
courseware management system
Type
thesis
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