Educational Technology-IIशैक्षिक तकनीकी-II

Inquiry Training Model (Richard Suchman) is based on the process of scientific inquiry and has five phases:

• Confrontation with a puzzling/discrepant event.
• Data gathering – verification (learners ask yes/no questions to gather facts).
• Data gathering – experimentation (isolating variables, testing hypotheses).
• Organising and formulating an explanation.
• Analysis of the inquiry process itself.

Example: Presenting a discrepant event in science (e.g., a dense metal object floating on mercury) and letting students inquire "why" through structured questioning. Aim — develop independent learning, scientific reasoning and hypothesis-testing skills.

Value Analysis Model (Jerrold Coombs & Milton Meux) is designed for teaching valuing/ethical reasoning, with steps:

• Identify and clarify the value question.
• Assemble purported facts.
• Assess the truth/relevance of factual claims.
• Arrive at a tentative value decision.
• Test the value principle for its general acceptability.

Example: Discussing a moral dilemma such as "environment vs. development" and guiding students to a rational, defensible value judgement rather than a dogmatic one.

(a) Computer-Based Assessment System (CBAS):

• Uses computers to construct, administer and score tests (MCQ, adaptive tests).
• Features: instant feedback, item banks, question randomisation, analytics/reports, remote/online testing, adaptive testing that adjusts difficulty to the test-taker.
• Advantages: efficiency, objectivity, immediate results, reduced malpractice (with proctoring).
• Limitations: digital divide, technical glitches, limited assessment of higher-order/practical skills.

(b) Computer-Mediated Communication (CMC):

• Exchange of information through computer networks — email, chat, video-conferencing, discussion forums, social media, LMS-based communication.
• Can be synchronous (video call/chat) or asynchronous (email/forum posts).
• Used in distance/online education for teacher-student and peer interaction, collaborative learning and doubt-clearing.
• Advantages: flexibility, wide reach, record-keeping; Challenges: need for digital literacy/connectivity, fewer non-verbal cues.

Instructional Design (ID) is the systematic process of planning, developing and organising instruction to achieve specific learning outcomes efficiently — commonly guided by the ADDIE model (Analysis, Design, Development, Implementation, Evaluation).

Instructional design for multimedia combines text, audio, video, animation and graphics for instruction, informed by Mayer's Cognitive Theory of Multimedia Learning (dual-channel processing, limited capacity, active processing).

Components:

• Learning objectives clearly stated at the outset.
• Content/script design including storyboarding.
• Media selection (text/audio/video/animation matched to content type).
• Interface and navigation design — user-friendly and intuitive.
• Interactivity elements — quizzes, simulations, drag-drop activities.
• Feedback mechanism and embedded assessment/evaluation.
• Accessibility considerations — captions, alt text.

Mayer's principles — coherence, signalling, redundancy, spatial/temporal contiguity, segmenting and personalisation — guide effective multimedia ID, enhancing engagement and supporting self-paced/distance learning.

Counselling in distance education is the guidance provided to learners on academic, personal and vocational matters, since face-to-face contact is limited.

Methods:

• Individual counselling — face-to-face at study centres/personal contact programmes.
• Group counselling — during contact sessions/workshops.
• Correspondence/print-based counselling — guidance booklets.
• Telephone helpline counselling.
• Online/ICT-based counselling — email, chat, video-conferencing, discussion forums.
• Radio/TV counselling programmes and SMS/mobile-based guidance.

Role of TV as mass media in distance education:

• Telecast of educational programmes (e.g., Gyan Darshan, Swayam Prabha DTH channels).
• Demonstration of practicals/experiments and lectures by resource persons reaching a wide, remote audience.
• Repeat telecasts aid revision; combines audio-visual appeal, aiding retention.
• Cost-effective for mass reach; supplements print material.
• Maintains learner motivation and interest, and bridges the isolation of distance learning through a visual connection with the teacher.

(a) Challenges in adopting emerging technology in education:

• Digital divide — unequal access/affordability of devices and internet, urban-rural gap.
• Lack of digital literacy among teachers and students.
• Inadequate infrastructure — electricity, bandwidth.
• High cost of technology procurement and maintenance.
• Resistance to change among teachers; lack of quality, localised digital content.
• Cybersecurity and data-privacy concerns.
• Need for continuous teacher training and pedagogical integration; assessment/plagiarism issues in the online mode.

(b) Lean technical support system:

• A minimal, efficient, cost-effective model of IT support, applying lean principles (eliminating waste, just-in-time support) to educational institutions.
• Features: a tiered helpdesk (self-service/FAQ → peer support → expert support), remote troubleshooting, use of open-source/low-cost tools, preventive maintenance, and training end-users to reduce dependency.
• Importance: ensures technology adoption doesn't fail due to inadequate or expensive support — particularly crucial for resource-constrained schools.