Media and Technologies Used in DE II


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Media and Technologies Used in Distance Education II

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Media and Technologies Used in DE II

  1. 1. Distance Education and the Internet TECH4101 Dr. Alaa Sadik Instructional & Learning Technologies Department [email_address]
  2. 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. 3. <ul><li>Video Conferencing </li></ul><ul><li>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. </li></ul>Video Conferencing Systems
  4. 4. <ul><li>Types of Video Conferencing Systems </li></ul><ul><ul><li>Audio-graphic teleconferencing </li></ul></ul><ul><ul><li>Audio-low-scan TV teleconferencing </li></ul></ul><ul><ul><li>CYCLOPS </li></ul></ul><ul><ul><li>Telematics </li></ul></ul><ul><ul><li>Full audio- video-conferencing </li></ul></ul><ul><ul><li>Desktop video-conferencing </li></ul></ul>Video Conferencing Systems
  5. 5. <ul><li>Audio-graphic teleconferencing </li></ul><ul><li>Combines still-picture transmission with audio teleconferencing. Several different devices can be used to send pictures and graphics over the same telephone line. </li></ul>Video Conferencing Systems
  6. 6. <ul><li>Audio-low-scan TV teleconferencing </li></ul><ul><li>A broadcasting system for displaying text and graphic on any TV set with special teletext decoder. </li></ul>Video Conferencing Systems
  7. 7. <ul><li>Audio-low-scan TV teleconferencing </li></ul><ul><li>Interaction is added using response terminals to allow the learner to select specific pages , answer questions or determine the waiting time. </li></ul>Video Conferencing Systems
  8. 8. <ul><li>CYCLOPS </li></ul><ul><li>Developed in the Open University in 1976, to help students and tutors write, draw and communicate with each other. </li></ul>Video Conferencing Systems
  9. 9. <ul><li>Telematics </li></ul><ul><li>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. </li></ul>Video Conferencing Systems
  10. 10. <ul><li>Full audio- video-conferencing </li></ul><ul><li>A fully interactive television system that supports two-way communication using audio and video between or more two groups. </li></ul>Video Conferencing Systems
  11. 11. <ul><li>Full audio- video-conferencing </li></ul><ul><li>Sites are connected using telephone lines, local network or satellite. </li></ul>Video Conferencing Systems
  12. 12. <ul><li>Desktop/Web video-conferencing </li></ul><ul><li>A two-way audio-video conferencing system supported by one or more computers connected via the Internet using desktop client or the Web. </li></ul>Video Conferencing Systems
  13. 13. <ul><li>Advantages of video-conferencing </li></ul><ul><li>The ability to meet with the distance teacher without incurring travel expenses. </li></ul><ul><li>Provide real-time and visual interaction simulates face-to-face interaction. </li></ul><ul><li>Supports interaction between individuals or groups. </li></ul>Video Conferencing Systems
  14. 14. <ul><li>Limitations of video-conferencing </li></ul><ul><li>Needs to be associated with other forms of materials . These materials need to be distributed to students to use during or after conferencing. </li></ul><ul><li>Due to the high rate of visual signal, many technical problems still face full video-conferencing systems, such as bandwidth capacity and high cost . </li></ul><ul><li>Restricts the type of content that can be delivered. </li></ul>Video Conferencing Systems
  15. 15. <ul><li>Video-conferencing Services </li></ul><ul><li>Visit these site for more info about videoconference services </li></ul><ul><li>Polycom: </li></ul><ul><li>IVC i : </li></ul><ul><li>PresentPLUS: </li></ul>Video Conferencing Systems
  16. 16. <ul><li>Features of Computers & Networks </li></ul><ul><li>Distribution of course-related information in new and flexible ways. </li></ul><ul><li>Interactive learning environment. </li></ul><ul><li>Allow students to learn at their own pace, enables personalised responses and reinforcement. </li></ul><ul><li>Effective with special learners . </li></ul>Computers and Networks
  17. 17. <ul><li>Features of Computers & Networks </li></ul><ul><li>Communicate, support and control other devices. </li></ul><ul><li>Can replace many traditional media of distance education. </li></ul><ul><li>High capacity, low-cost and innovative storage devices. </li></ul>Computers and Networks
  18. 18. <ul><li>Features of Computers & Networks </li></ul><ul><li>Allow teachers and students to share resources on their computers or to access information located in other computers or networks . </li></ul><ul><li>Allow distance learners to exchange messages with the tutor or other learners on the network . </li></ul>Computers and Networks
  19. 19. <ul><li>Problems associated with the use of Computers & Networks </li></ul><ul><li>Transferability problems such as media and hardware incompatibility, the need for continuous updating and inadequate documentation and technical support . </li></ul><ul><li>Access problems. </li></ul><ul><li>Poor courseware design and self-management problems. </li></ul>Computers and Networks
  20. 20. <ul><li>Discussions and Activities </li></ul><ul><li>What is the Web? </li></ul><ul><li>What are the instructional capabilities of the Web? </li></ul><ul><li>What are the different levels/models/types of using the Web in education? Answer: see next slide </li></ul>Computers and Networks
  21. 21. Computers and Networks
  22. 22. The End