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Media and Technologies Used in DE II


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Media and Technologies Used in Distance Education II

Media and Technologies Used in Distance Education II

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  • 1. Distance Education and the Internet TECH4101 Dr. Alaa Sadik Instructional & Learning Technologies Department [email_address]
  • 2. Lecture Five Media and Technologies Used in Distance Education II: Advantages and limitations Distance Education and the Internet TECH4101 Includes suggestions for class presentations
  • 3.
    • Video Conferencing
    • A 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
  • 4.
    • 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
  • 5.
    • Audio-graphic teleconferencing
    • Combines 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
  • 6.
    • Audio-low-scan TV teleconferencing
    • A broadcasting system for displaying text and graphic on any TV set with special teletext decoder.
    Video Conferencing Systems
  • 7.
    • Audio-low-scan TV teleconferencing
    • Interaction is added using response terminals to allow the learner to select specific pages , answer questions or determine the waiting time.
    Video Conferencing Systems
  • 8.
    • Developed in the Open University in 1976, to help students and tutors write, draw and communicate with each other.
    Video Conferencing Systems
  • 9.
    • Telematics
    • A 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
  • 10.
    • Full audio- video-conferencing
    • A fully interactive television system that supports two-way communication using audio and video between or more two groups.
    Video Conferencing Systems
  • 11.
    • Full audio- video-conferencing
    • Sites are connected using telephone lines, local network or satellite.
    Video Conferencing Systems
  • 12.
    • Desktop/Web video-conferencing
    • A 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
  • 13.
    • 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
  • 14.
    • 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
  • 15.
    • Video-conferencing Services
    • Visit these site for more info about videoconference services
    • Polycom:
    • IVC i :
    • PresentPLUS:
    Video Conferencing Systems
  • 16.
    • 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
  • 17.
    • 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
  • 18.
    • 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
  • 19.
    • Problems associated with the use of Computers & Networks
    • Transferability problems such 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
  • 20.
    • 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
  • 21. Computers and Networks
  • 22. The End