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Distance Education and the Internet TECH4101 Dr. Alaa Sadik Instructional & Learning Technologies Department www.alaasadik.net [email protected]
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Distance Education and the Internet TECH4101
Dr. Alaa SadikInstructional & Learning Technologies Department
Lecture FiveMedia and Technologies Used in Distance Education II: Advantages and limitations
Distance Education and the Internet TECH4101
Includes suggestions for class presentations
Video ConferencingA communication system among people, located at two or more different places, provides audio-visual live interaction between the learner and the teacher and among a group of learners.
Video Conferencing Systems
Types of Video Conferencing Systems
Audio-graphic teleconferencing Audio-low-scan TV teleconferencing CYCLOPS Telematics Full audio- video-conferencing Desktop video-conferencing
Video Conferencing Systems
Audio-graphic teleconferencingCombines still-picture transmission with audio teleconferencing. Several different devices can be used to send pictures and graphics over the same telephone line.
Video Conferencing Systems
Audio-low-scan TV teleconferencingA broadcasting system for displaying text and graphic on any TV set with special teletext decoder.
Video Conferencing Systems
Audio-low-scan TV teleconferencingInteraction is added using response terminals to allow the learner to select specific pages, answer questions or determine the waiting time.
Video Conferencing Systems
CYCLOPSDeveloped in the Open University in 1976, to help students and tutors write, draw and communicate with each other.
Video Conferencing Systems
TelematicsA one-way television that transmits instruction from teacher to students. Interaction is established through a free call-back telephone enabling students to communicate directly with the teacher during broadcasting.
Video Conferencing Systems
Full audio- video-conferencingA fully interactive television system that supports two-way communication using audio and video between or more two groups.
Video Conferencing Systems
Full audio- video-conferencingSites are connected using telephone lines, local network or satellite.
Video Conferencing Systems
Desktop/Web video-conferencingA two-way audio-video conferencing system supported by one or more computers connected via the Internet using desktop client or the Web.
Video Conferencing Systems
Advantages of video-conferencing The ability to meet with the distance teacher without incurring travel expenses. Provide real-time and visual interaction simulates face-to-face interaction. Supports interaction between individuals or groups.
Video Conferencing Systems
Limitations of video-conferencing Needs to be associated with other forms of materials. These materials need to be distributed to students to use during or after conferencing. Due to the high rate of visual signal, many technical problems still face full video-conferencing systems, such as bandwidth capacity and high cost. Restricts the type of content that can be delivered.
Video Conferencing Systems
Video-conferencing ServicesVisit these site for more info about videoconference services
Polycom: fvc.com/fvc/fvcweb
IVCi: ivci.com
PresentPLUS: presentplus.com
Video Conferencing Systems
Features of Computers & Networks Distribution of course-related information in new
and flexible ways. Interactive learning environment. Allow students to learn at their own pace, enables
personalised responses and reinforcement. Effective with special learners.
Computers and Networks
Features of Computers & Networks Communicate, support and control other devices. Can replace many traditional media of distance
education. High capacity, low-cost and innovative storage
devices.
Computers and Networks
Features of Computers & Networks Allow teachers and students to share resources
on their computers or to access information located in other computers or networks.
Allow distance learners to exchange messages with the tutor or other learners on the network.
Computers and Networks
Problems associated with the use of Computers & Networks
Transferability problemssuch as media and hardware incompatibility, the need for continuous updating and inadequate documentation and technical support.
Access problems. Poor courseware design and
self-management problems.
Computers and Networks
Discussions and Activities
- What is the Web?- What are the instructional capabilities of the Web?- What are the different levels/models/types of
using the Web in education?Answer: see next slide
Computers and Networks
Computers and Networks
W eb s upportedins truc tion
W ebpedagogic alres ourc es
S tand-alone ins truc tion
The End
