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The elements of sound: pitch and loudness

LESSON 1- The elements of sound: presenting the topic 

 

1. The lesson starts with a listening activity ('Listening 1'). In this activity the students, individually, classify the sounds into sound and noise, and also describe the sounds. They have two vocabularies available ('vocabulary 1' and 'vocabulary 2'). 6-7 minutes.

 

2. Reflection activity: from the previous descriptions, in groups try to imagine what are the elements or qualities of sound. Then share the group's conclusion. 10 minutes.

 

3. Look at the Video 1. The first time only look at the video, after that read the transcript and look at the video once again. 10 minutes.

 

4. Now in groups, listen again to the first listening, and, in groups, describe the sounds in terms of the elements of sound. Share group opinions. (use the 'Giving opinion' button, it contains useful phrases) 6-7 minutes. 

 

5. Go to 'Video 1', and do the short exercices to check your knowledge about elements of sound. 10 minutes.

 

6. Noise pollution: look at 'Video 2'. In groups, describe situations of noise pollutions in your environment. 12-15 minutes.

 

LESSON 2- Pitch and loudness

 

 1. Start with 'Video 3'. The first time only look at the video, after that read the transcript and look at the video once again. 10 minutes.

 

2. In groups, classify different sounds of your daylife into two groups: high sounds / low sounds. Use images from the Internet to reflect that sounds, and finally create a poster. 15 minutes.

 

3. Then play all together. Make a big circle, and following instructions each student has to produce a higher/lower sound, basing on a previous sound. 2-3 minutes.

 

4. Look at the following video. 2-3 minutes.

 

 Louder sounds are produced by sound waves of higher amplitude let's try to visualize it. We need a metal glass and a spoon. Pour some water in the metal glass now strike the glass with a spoon and observe the sound first softly then a little harder and again very hard you observe that the loudest sound is produced when the glass is struck the hardest now we will test the amplitude of the sound waves keep the glass near the term called wall which is hanging from a string, let the ball slightly touch the glass now again strike the glass and observe the ball we see that the term called ball gets this page more and the glass is struck harder this shows that the glass vibrates with more amplitude when it strike harder so we can conclude that the difference in loudness of sound is due to difference in the amplitude of waves it produces.

 

5. In groups, classify different sounds of your daylife into two groups: loud sounds / soft sounds. Debate about: in which situations do you prefer loud/soft sounds? 10 minutes.

 

6. Debate: how loud is too loud? 2-3 minutes.

 

7. In groups, create a sound map of your town. Use different colours for the different levels of loudness. Then identify the noisiest areas and propose a solution for each one. 15 minutes.

 

 

 

 

 

 

 

Short url:   http://multidict.net/cs/4970