计算机辅助教学实时圈点系统的设计与实现

Design and Implementation of Real-time Punctuating System for Computer Aided Instruction

在计算机辅助教学过程中,教师们经常会用到教学课件的实时圈点功能。该文设计了一个计算机辅助教学实时圈点系统,并利用VB加以实现。该系统能使PowerPoint课件在演示时用规则的图形（如直线、方框、圆圈、椭圆等）进行实时圈点,有效的弥补了在PowerPoint软件中只能进行涂鸦式画线圈点的不足。并且,该系统还能实现作为多媒体教学课件有效补充的其他常见类型文档（如Word文档、Excel文档、Acrobat文档、文本文档、图片文档等）的规则图形实时圈点。

In the procedure of computer aided instructing,teachers often use the real-time punctuation function of teaching courseware. A real-time punctuating system for computer aided instruction was designed and implemented using VB. This system can make PowerPoint courseware on demonstrating be punctuated with regular graphics,such as line,rectangle,circle and ellipse,so it effectively made up for the shortage of the punctuation function of PowerPoint that the drawing pen of PowerPoint provides only but doodling function. And this system can realize the real-time punctuation with regular graphics for the other common type of documents,such as documents of Word, Excel,Acrobat,text or picture,that as the effective supplements for multimedia teaching courseware.