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

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.

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

Types of Video Conferencing Systems

Audio-graphic teleconferencing

Audio-low-scan TV teleconferencing

CYCLOPS

Telematics

Full audio- video-conferencing

Desktop video-conferencing

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-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.

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

A broadcasting system for displaying text and graphic on any TV set with special teletext decoder.

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

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.

CYCLOPS Developed in the Open University in 1976, to help students and tutors write, draw and communicate with each other. Video Conferencing Systems

CYCLOPS

Developed in the Open University in 1976, to help students and tutors write, draw and communicate with each other.

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

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.

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

A fully interactive television system that supports two-way communication using audio and video between or more two groups.

Full audio- video-conferencing Sites are connected using telephone lines, local network or satellite. Video Conferencing Systems

Full audio- video-conferencing

Sites are connected using telephone lines, local network or satellite.

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

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.

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

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.

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

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 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

Video-conferencing Services

Visit these site for more info about videoconference services

Polycom: fvc.com/fvc/fvcweb

IVC i : ivci.com

PresentPLUS: presentplus.com

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

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 .

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

Communicate, support and control other devices.

Can replace many traditional media of distance education.

High capacity, low-cost and innovative storage devices.

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

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 .

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

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.

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

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

The End