Teaching Sound Without Sound

Curricular material to introduce the topic Sound
00 hours 09 mins

As a student, when the chapter 'Sound' was taught to me, I found it strange that the only 'sound' in the classroom was that of the voice of the teacher. I therefore, have taken the opportunity to design curricular materials using everyday items to introduce the topic of Sound to students.The materials have been briefly explained and can be used as per one's needs and requirements.

Following are a few ways of how the materials can be used:

1. The entire introductory chapter on Sound can be taught using these materials parallel to the text book.
2. These materials can be used as a form of assessment as well.  For example the learner can be asked to compose a 3-4 note tune and then try to play the same using the pre-existing materials or can even design her own.  The difference brought about in the pitch or amplitude to acquire the notes should be backed by scientific explanation.
3. Issues of noise pollution and how it can cause loss of hearing can also be shown using the first material (as seen in the video) and how with higher amplitude sounds the rubber sheet starts to loosen resulting in the grains not jumping as much as before and therefore the sound not being audible.  Here the rubber sheet refers to the ear drum.
4. The materials can also be used to explain how different string, percussion and wind instruments function and the wonderful craftsmanship involved in designing these instruments.
5. Tuning of string and percussion instruments can also be explained using these materials.

Other material that can be used to supplement this:

From Arvind Gupta:

1.  Pupeteer's Whistle (Click on the image) 

2. Thundering Trumpet
3. Straw Flute

From Arvind Gupta's friend & retired professor at NID, Sudarshan Khanna:

The classic Toys & Tales eBook (Click on the image)

And finally, Otomata: (Click on the image)

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