NOTHING CAN REPLACE THE CONVENTIONAL TEACHING METHOD

BLACK BOARD TEACHING METHOD

When I compare all the modern methods of teaching and the views of over 100 students of NITT, no other medium of teaching could be superior to the Black board.

Smart board is the state-of-art teaching tool. In a broader sense, the Smart board is defined as a giant size monitor as it allows additional functions that one can perform with a computer. One can manually draw graphs with the Smart board.

Majority of the developed countries, facilitate the classrooms with smart boards, whereas in developing countries like India, only a handful of colleges were aware of the Smart board.

There are other teaching methods that aid the lecturers and professors to carry out classroom instructions and teachings, like virtual classroom, cool sites, web browsers, blogs, MOO(Multi-user Dungeon, Object-Oriented), white board teaching software, slide projectors, epidiascope, Overhead projectors (OHP) , LCD projections.

Though each mode of teaching had got its own merit and demerit, it is inferred that nothing could match the blackboard. It has got a winning edge over all modern methods. It would certainly beat the Smart board.

Overhead projector was a simple and the most convenient and affordable gadget for classroom teaching.
This handy tool has no necessity for the room to be completely darkened unlike for slide projector. The teaching material can either be written or photocopied using xeroxable thin transparencies. Color projections were also possible. In short the OHP was teachers friendly.

Though the OHP has countable advantages, the moment the transparency is taken out of the OHP, the content gets wiped off from the student’s mind as well. Any student will lack the feel of working a derivation.

The opaque projector, the predecessor of the OHP, the epidiascope or the episcope is a device whose system of mirrors, prisms and imaging lenses helps to focus an image of the material on the viewing screen.

Opaque projectors required brighter bulbs and larger bulbs than 0HPs. Greater care should be taken to make sure that the heat generated by the light sources did not damage the materials.

On the other hand, the greatest advantage of the epidiascope is that no separate transparency is required as the projection can be done directly from the book. The epidiascope has become obsolete these days.

Though the slide projector was convenient in making skills of the natural geographical settings and was easy to convert into picture slides, it would be difficult to prepare write-ups. I can say this gadget was gradually moving out of the scene.

Referring to PowerPoint, the most popular mode of teaching in recent years, it is convenient for mentors as grabbing the attention of the students is made easy through the colorful slides.

It helps to add visual component to verbal messages, remove the stage fear of the presenter as the important points are bulleted in the slides. Also no points would be missed.

These presentations were reusable with any number of modifications. Other additional features like animation, flexibility in text, videos, pictures, diagrams, Tables and graphs could be easily achieved.

ARTICLE ABOUT CONVENTIONAL TEACHING METHOD

Though all the above technologies helped a lot in the modern method of teaching, the ultimate aim of registering the concept in the students mind could not be done as effectively.

If lengthy mathematical equations are derived step-by-step by using the chalk and conventional blackboard, the concept would get easily registered in the minds of the students.

At the end of the class, students would have the real satisfaction of having learnt some principles. This could be done in any of the existing modern methods.

Heritage has got its own value which the modern gadgets can never substitute.

DR.S.RAGHAVAN

SENIORMOST FACULTY IN ELECTRONICS AND COMMUNICATION ENGINEERING,
NIT TRICHY

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