The Design And Implementation Of The Network Teaching System Based On The Broadband Network

Network teaching is an interacting teaching method combining network technology and multimedia technology. Network teaching utilizes modern teaching instruments and a variety of multimedia technology and network communication, so that the students can study without the limitation of time and place, and the study materials become more vivid. This radically changes the traditional educational mode which centers on teaching and fully exerts the students'initiative and creation. Broadband network technology currently is the most updated technology. The network teaching system based on the broadband network the paper studies illustrates the definition, characteristics and meaning of the network teaching system, introduces the principles, application and connect-technology of the broadband network. The teaching system based on the broadband network has such modes as those based on CATV, based on HFC, based on interact TV system and broadband IP network. Through comparing and analyzing the teaching system modes, especially through elaborating on the core technology of the broadband network and the constitution and the hardware structure of the network based on the broadband network, the paper suggests a hardware design plan of the network teaching system based on the broadband IP network. Based on the plan, the paper designs a network teaching system, which utilizes Visual C#.net to develop, adopting the most popular B/S structure and with SQL, Server 2000 as its database management system. The system involves student area and teacher area. Students can log in the student area to accomplish all study processes, including such activities as synchronizing classroom, video teaching, network teaching, downloading study resources, online exercise, online test and online tutorship. Teachers can log in the teacher area to process online management, including online preparation for lessons, issuing teaching information, uploading materials, managing exercises, managing test papers and providing online answers, etc. In addition, the system also involves the users'register mode to realize the users'registration, entry and management.