作业：.我过去、现在、将来世界观、价值观、人生观是什么及理由；写这篇文章也不是仅仅应付老师布置的作业，也是为了理清自己多来年的心路历程。

The difference between Instructional Design (ID) and Instructional System Design (ISD) is not very obviously. But it is clear that the development began from Instrutional Design to Instructional System Design. Inorder to easily to understand, we may can say that ID is the father of ISD. But nowadays, most of people including some experts, always use the ID replace of ISD.I think there some reasons for it: maybe someone misconsider that Instructional Design is short for Instructional System Design; or maybe someone misunderstand that Instructional Desig and Instructional System Design are twins; as so on.

In order to talk such question clearly, I’d like to talking some diference between ID and ISD.

I have studied educational technology for two years. As we know, the pratice and theory of media have much effect in our major. I even think that the research of media and learning is a key area o*f our major.

In early days, learning is just depending on communicating between human beings. We gain knowledge through our sight, our hearing, our touching in the limit time and space. When the media appeared, it had a profound impact on both learnig and teaching. Learning with media or Learning through media are becoming more and more popular learnig style for learners. In fact ,media quite literally extend our sight,hearing and touching through time and space. It creats a possibility for large-area education. It also creats a possibility for long-

    今天重新登录了本科阶段的BB平台，偶遇自己以前写的关于“个人知识管理”专题教学的后教学反思，后来我汪晓东老师blog也看到我这个教学反思，本文写已经了差不多写了两年多了，现在重新阅读起来，让我想起来了以前上专业英语课时候的情形。虽然笔法拙劣，却是记录了成长的过程。                                           

 ——题记

教学是一场表演，更是一门艺术