Compared to the traditional ways, the Students Assessing Teaching Online (SATO) has a strong capacity of information gathering and processing.

,this paper introduces the design and realization of this comment system on teaching through net,and points out its advantages such as high efficiency and convenient operation,etc.

By using multimedia technology, a college physics multimedia courseware and a web teaching system are developed.

Web teaching system is not only an important area on the integ rated application of modern information technolog ies,but also a basic means of Educational Informationization.

a web teaching system is designed with Browser/Server mode, which consists of student registration on web, classes on web, questionnaire on line and mail boxes of teachers and students, customers studying the courses, random extracting test questions, marking in time, checking the record and correcting personal information through interaction.

This paper introduces several traditional online teaching systems, points out that the common weak point of these systems is the lack of individualization, and analyzes the online teaching system based on Agent technology which solves the problems existing in traditional online teaching system and is applied widely.

In this paper,an online teaching system is established by using Dreamweaver MX as website developing tool.