The concept of distance learning refers to the new educational model that allows teachers and studentsat different locations to study courses at any time any place they like, without being limited by time andspace. The student can not only see text and hear the voice, but also get more richful and audio -- visualmultimedia courseware and data. On - line interactive discussion between teachers and students carried outby ISDN; visual phone or desktop videoconference system makes you feel like in only one classroom. Themodem distance education system based on satellite telecommunication, Internet and multimedia technologiesdeveloped vigorously in some developed countries, hut it is in its infancy in China. And more arid more people recognized its importance and positive role. Under the leadership of the Ministry of Education of’ China,the construction of the distance education system in Tsinghua University commenced in 1997.Vice - PremierLi Langqing and other leaders of the Ministry commenced in 1997.Vice -- Premier Li Langqing arid otherleaders of the Ministry of Education all cared about it and gave important instructions. With the hard wordof the faculties of Tsirighua University arid the support of the off -campus substation around China,the system works well.One more year’s practice made us know:Distarice Education is the most popular educationalmode in the next century,which is an important way to construct a lifelong education system and achieve anenvironment of learning society.
