Page 190 - DEDU403_EDUCATIONAL_TECHNOLOGY_ENGLISH

Educational Technology

Notes 22.4 Summary

• Radio and other audio instruments play an important role in teaching, especially for literature
courses.
• Radio is an important means of connecting remote people to the events of the world.
• Famous artists can be heard on the radio and their art can be studied. We can listen a speech or
education lesson again and again with the help of radio.
• Television has moved ahead many steps from radio. We can only hear voice over the radio while over
the television we can hear voice as well as can see the picture of a person and his activities clearly.
• Television entered in India on September 15, 1959 by a trade fair at New Delhi in which its utility
was performed. After the September 15, 1959, television service was formally inaugurated in India.

• Closed circuit Television broadcast is only confined to classrooms or school buildings, therefore it is
called as Closed Circuit Television. Relay reaches the T.V. or monitor through a co-axial cable. These
programme are either broadcasted directly or broadcasted after being recorded.

22.5 Keywords

• Radio—Instrument which receive frequency signals
• Limitations—Shortcomes

22.6 Review Questions

1. Highlight the Audio recording instrument.
2. What are the advatages of radio lessons? Write its limitations.
3. Explain the development of educational television.
4. Explain the types of television programmes.
5. What do you mean by CCTV? Write its major characteristics.

Answers: Self-Assessment
1. (i) Contribution (ii) Mentally (iii) Population (iv) Follow-up (v) Events
2. (i) (a) (ii) (b) (iii) (c)
3. (i) True (ii) False (iii) True

22.7 Further Readings

1. Educational Technology—S.K. Mangal, P.H.I. Learning.
2. Basic Premise of Educational Technology—Yogesh Kumar Singh.

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