INTRODUCTION
This is the age of Science and Technology. Almost everything has undergone a change under the impact of Science. The teaching learning processes have also been affected by it. The classroom has to have it different shape in times to come. Learning depends upon the different type of equipment available in the classroom. Audio-Visual aids are of immense value in the teaching- learning process. They make the process lively and interesting and hence make it effective and better. In the absences of Audio-Visual aids the classroom will be considered traditional ones or the ones belonging to 19th century or early 20th century. Surely the classroom in the 20th century has to be modern from every angle.
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Lecturer, Department of Education, Annamalai University, Chidambaram, Cuddalure, Tamil Nadu.
EDUCATIONAL TECHNOLOGY In general, ‘Educational Technology’ refers to the application of scientific knowledge about learning and the conditions of learning to improve the effectiveness and efficiency of teaching and learning. Educational Technology has been viewed in terms of its two interactive components viz. Technology of Education and Technology in Education. Technology of education includes the systems approach to solve educational problems, through interactive strategies corresponding to the psychology
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