Efl guess What! Teacher's Book 6 Grade 6

Workbook page 43

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How do string instruments make
high and low 
sounds
?
54

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Unit 4
Grammar
 
55
CD2
15
1
Listen and repeat.
[photo 073l]
Project
6
Find out about an 
instrument. Draw it and 
describe how it makes 
sounds. How can you 
change the pitch?
2
Watch the video.
thick string
thin string
make tighter
vibrate
4
Answer the questions.
What word describes how high or low 
sounds are?
2 
What do we hear when something 
vibrates slowly?
3
Which makes a higher sound, a long 
string or a short string? 
 4
Which makes a lower sound, a thick 
string or a thin string?
5
What sounds do you hear every day? 
Do they have a high or a low pitch?
high and low 
sounds
?
➞ 
Workbook page 44
 
3
2
When we play a guitar or another string 
instrument, we make the strings vibrate. When 
a string vibrates quickly, it makes a high sound. 
When it vibrates slowly, it makes a low sound. 
The pitch is how high or low the sound is. How 
can we change the pitch? There are three ways.
•
We can make the string tighter. Tight strings 
vibrate faster, so they make a higher pitch.
•
We can make the string shorter because 
shorter strings vibrate faster, too.
•
We can use thick and thin strings. Thick 
strings vibrate slowly and make a low sound. 
Thin strings vibrate quickly and make a 
high sound.