引进多媒体技术 创建“工程制图”CAI教学环境

Create "Engineering Drafting" CAI Environment with the Introduction of Multi-Media Technology

将多媒体CAI（计算机辅助教学）应用于“工程制图”教学中的基本途径是根据教学大纲和教学目标,把教材和教师在教学过程中所起的作用,映射成多媒体CAI课件,利用多媒体CAI的功能和特点来完成整个教学过程。 一、“工程制图”多媒体教学环境的建立 多媒体教学环境有多种形式,其配置也不完全相同。在“工程制图”课程的多媒体教学中,从满足教学基本需求出发,可选用586DX/100多媒体主机（配置有CD—ROM光盘驱动器,声霸卡,视霸卡和数据压缩卡）,并通过接口与摄像机、放像机、话筒等多种输入设备和装置相连接,还可配置实物投影仪,从而建立起适用于“工程制图”课程教学特点的多媒体教学环境。图1是“工程制图”多媒体教学环境的结构框图。

The basic way to adopt multi - media CAI in the teaching of 'Engineering Drafting' course is developing multi - media teaching materials in combination with teaching syllabus and objectives to supersed the conventional teaching materials and teachers in teaching process and complete the whole teaching process by exerting the functions and features of its multi - media CAI. Facts show that it will enhance the teaching effect by audio - visual, stereoscopic and dynamic means compared with conventional teaching methods, and students will obtain information a couple of times as much as conventional teaching methods in a unit time. In the meantime, it will stimulate students to learn more actively, help teach students in accordance with their aptitude, and deepen the faculty of understanding of knowledge owing to its vivid simulation as well.'Engineering Drafting' CAI system, developed with Visual Basic 3.0 for Windows and other soft-ware on the platform of Windows 3.1, is a multi - media teaching software package with images, words and sound, watching, hearing and learning well integrated. With wide application of this technology in the field of education, it would eventually break down the conventional teaching model and greatly extend teaching activities in both time, and space with teaching processes optimized. Moreover, it would change students'process of cognition in teaching process. On the other hand, it would raise requirements quite distinct from before for teachers, that is, teachers should first change their educational ideas and establish a new outlook on life and views on students as well as knowledge and skill renewal. Only by these means could they adapt to the requirements of the forthcoming mulit-media era.