Media and Technologies Used in DE II
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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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    Media and Technologies Used in DE II Media and Technologies Used in DE II Presentation Transcript

    • Distance Education and the Internet TECH4101 Dr. Alaa Sadik Instructional & Learning Technologies Department www.alaasadik.net [email_address]
    • Lecture Five Media and Technologies Used in Distance Education II: Advantages and limitations Distance Education and the Internet TECH4101 Includes suggestions for class presentations
      • 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
      • 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 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
      • Audio-low-scan TV teleconferencing
      • A broadcasting system for displaying text and graphic on any TV set with special teletext decoder.
      Video Conferencing Systems
      • 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
      • CYCLOPS
      • Developed in the Open University in 1976, to help students and tutors write, draw and communicate with each other.
      Video Conferencing Systems
      • 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
      • 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
      • Full audio- video-conferencing
      • Sites are connected using telephone lines, local network or satellite.
      Video Conferencing Systems
      • 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
      • 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 Services
      • Visit these site for more info about videoconference services
      • Polycom: fvc.com/fvc/fvcweb
      • IVC i : 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 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
      • 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
    • The End