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Copyright 2001:YNSE-education1 Internet applications in Education Yatindra Nath Singh Electrical Engineering Department IIT Kanpur

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Presentation on theme: "Copyright 2001:YNSE-education1 Internet applications in Education Yatindra Nath Singh Electrical Engineering Department IIT Kanpur"— Presentation transcript:

1 Copyright 2001:YNSE-education1 Internet applications in Education Yatindra Nath Singh Electrical Engineering Department IIT Kanpur

2 Copyright 2001:YNSE-education2 Internet Cheap information transmission medium Provides efficient, Low cost communication infrastructure. Packet switched network Problems of delay variation Provides reliable byte stream transport (TCP), unreliable datagram transport (UDP). Bandwidth is used when you transmit, else available for others better capacity sharing (compared to telephony or dedicated bandwidth transponders)

3 Copyright 2001:YNSE-education3 Student Study material/ presentations Teacher Learning System

4 Copyright 2001:YNSE-education4 Component of Conventional Presentation written notes and description. Oral description and classroom interaction. Includes Evolving descriptions on board. Evolving diagrams Student feedback Very important - Immediate interaction in class

5 Copyright 2001:YNSE-education5 lecture can be tuned according to student feedback. Things can be repeated if needed. Student forced to be in synch with teacher. (Time deadlines can be achieved.)

6 Copyright 2001:YNSE-education6 Second kind of learning system - Distance education Specialized material (video recording, audio recording, written material) - made and put in repository. A student can find it very difficult or very easy. Based on feedback, the material can be tuned over the time for various levels of students. Tuning time is very large.

7 Copyright 2001:YNSE-education7 Tools to identify the level of student are required. While in conventional interactive learning teacher judges the level and continuously adjust In non teacher based system, continuous tuning - not possible.

8 Copyright 2001:YNSE-education8 ASYNCHRONUS learning and interaction is on demand. Allows learners to participate according to their schedules independent of their instructors. interaction can be through technologies likes , mailing lists and newsgroups. SYNCHRONUS (imitation of classroom) interaction happens live. require that learners and instructors attend class at scheduled time. Could be held in a traditional classrooms widely apart, delivered via e-learning technologies.

9 Copyright 2001:YNSE-education9 Education System Evaluation system added to learning/ teaching system. Certification on the basis of evaluation

10 Copyright 2001:YNSE-education10 Essence of education system Teacher - devises new ways of effective communication for knowledge transfer while taking continuous feed back from student Basic Assumptions Student as well as teacher have access to terminals attached to internet. Tools at student ends – Can be specialized client software – Can be some other generalized interface (e.g., web browser). In general web browser with plugin

11 Copyright 2001:YNSE-education11 Tool at teacher ends Can be specialized client for teacher (Instructor). Can be some general interface (e.g. Web browser) In gerenal web browser with plugin Services Manager Has much less interference between teacher - student interaction. Does technical management Should be able to manage more than one instructor - students groups.

12 Copyright 2001:YNSE-education12 In the beginning - Desirable at student end. Public domain set of tools. Commonly available on a system e.g., Real player,Web browser. Same is desirable at instructors end

13 Copyright 2001:YNSE-education13 Courses Content Authoring tool - For asynchronous course material audio - video files (lecture) document format (pdf, doc, postscript, html, xml) Streamed Video cameraCapture card Real Producer.rm format archive file Real server { Hardware} {Software}

14 Copyright 2001:YNSE-education14 Additionally required for video Suitable place for Recording (Recording studio) Document authoring Software Acrobat writer, MS-Office, LaTeX, HTML and XML authoring tool. Final desired format - pdf, postscript, HTML, XML Course Material presentation Tools Web browser and plugins Media player (audio, video, animation) e.g., Realplayer, windows mediaplayer, flash plugin. White board (implemented through applets)

15 Copyright 2001:YNSE-education15 Course Serving tool Server side counterparts of presentation tools Course management tools Goal - to manage the instructors, tutors and students. (FCAPS) Access Configuration Performance Accounting Failures Same as defined for OSI-SM set of standards by ISO. Using above more sophisticated business logic can be build.

16 Copyright 2001:YNSE-education16 Sub System Architectures (example structures needed in ETS system of IIT Kanpur)

17 Copyright 2001:YNSE-education17 Two video formats - evolving slides or blackboard capture can be streamed

18 Copyright 2001:YNSE-education18 Interfaces for scilab - including interactive maths in course material

19 Copyright 2001:YNSE-education19 XML server system - to handle mathmatics (mathml)

20 Copyright 2001:YNSE-education20 Another architecture (live lecture) Lecture material, slides demos downloaded beforehand after registering at lectures manager Time of live lecture is received from lecture manager server (LMS). Server sides streams live lecture, presentation material puts up from preloaded lecture-material Client and server can have multicast, synch protocol Client and server can have whiteboard for live interaction

21 Copyright 2001:YNSE-education21 Student can interrupt the teacher, based on teachers decision, control passed to student for question. Every body (student as well as lecher can see and listen to what is happening) whiteboard can be used for discussion between students and teacher. Network Group, IIT Kanpur - implemented such a toolREMOTE TUTOR

22 Copyright 2001:YNSE-education22 Problems scalability? Due to multicast there is no technical problem. Participants in discussion are more with more no. of students. Tool need to be modified by introducing Hierarchy (Instructor-Tutor-Students). Commonly used paradigm for large class of 300 or more. Scalability problem Interaction among students can solve the problem. Very few problem - will come for elaboration to teacher.

23 Copyright 2001:YNSE-education23 A lecture recorded with a group of limited number of students. Archived lecture can be viewed by large number of students Student discusses the problem on a discussion group (newsgroup) or mailing lists. For live discussion, chat rooms and whiteboard can be used. Over the times, most of the problems will be solved. Left over can be taken care of by instructor in the discussion Group or through revised course material. This feed back will also help in revising the material.

24 Copyright 2001:YNSE-education24 Issues involved with such systems Infrastructure Issues Bandwidth of network. (specially access network part) - ordinary good quality telephone line gives upto 56 kbps. Availability of tools Reach of Internet Power situation (quality and availability) at user end. (Villages and small cities) Cost incurred by user, service provider, educational organization Examination and certification mechanisms.

25 Copyright 2001:YNSE-education25 Psychological issues Personal touch of Guru-Shishya (personal touch) missing. Acceptance of paradigm by masses. Educational Issues Efficacy of such a system - studies to quantify and compare the E-education systems with conventional system is required. Where organization does not have good teachers, they can provide to student access to an excellent teacher (of course personal touch will be missing but Certainly a better option).

26 Copyright 2001:YNSE-education26 Technology issues Hierarchy of servers for implementing large E-education systems. Multicast implementation (for usage efficiency) Management system for maintaining large spread of servers.

27 Copyright 2001:YNSE-education27 Conclusion Whatever be the technology motivation of student- extremely important. Motivation to learn - not to clear the examination (social issue). Smart and goal oriented approach toward learning objectives extremely important.

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