不同類型的視聽媒體由於屬性的差異在教學上扮演著不同角色。電腦科技與視聽媒體的結合是資訊發展的趨勢，運用電腦輔助教學以改善教學品質及增進教學成效是一種新的潮流。早期電腦輔助教學受到軟、硬體技術的限制採用單調而缺乏變化的線性設計，然而運用電腦技術整合聲、光、畫、影等多元訊息滿足人類視、聽方面的需要，使得學習者在教學過程中成爲真正的主角。本文探討電腦輔助教學的意義、內容與地位，並瞭解它在教學中的角色與功能，藉由學習理念、實施策略與教學模式分析它在地理教學應用的侷限與建議。
Various types of audio & visual media, for their difference on attribute, they play different role for instructions. The combination of computer technology and audio-visual media is a trend of development on information. By making use of the Computer-Assisted Instruction to improve the quality of instructions and to increase the instructional effect is a new fashion. In ear1y stage, the Computer-Assisted Instruction is limited by the skills of software and hardware, and it adopts the linear design for a dull and boring presentation without any interesting. However, following the integrated combination of multi-information implemented by the computer technology, such as: sound, light, screen, and image, etc. to satisfy the human beings' audio & visual demand, so that it lets the role of learner become the real actor. This makes the Computer-Assisted Instruction have a new meaning. This article is to overview the meaning, content, and location of Computer-Assisted Instruction and realize its role and function among the instructions. By means of the research on learning idea, po1icy implementation, and teaching mode to analyze the limitation and suggestion on its application for geographical instructions.
