Reading lyrics is a pretty intuitive venture for most students. We’ll take an activity that’s already common knowledge and shift it into a solid education on defining and calling functions.
Recursive: A definition that refers to the word it is trying to define.
Counter blocks are often called for loops. They’re called that because you do something FOR all values of the counter from the minimum to the maximum.
Let's say you have a counter block that keeps track of your age. From age 5 to age 10, you grow two inches a year. From age 11 to age 17, you grow an inch every two years. This requires two blocks. What is the minimum value, maximum value, and add-on amount for each block?
CHORUS:
Oh, dear! What can the matter be?
Dear, dear! What can the matter be?
Oh, dear! What can the matter be?
Johnny’s so long at the fair.
He promised to buy me a fairing to please me,
And then for a kiss, oh, he vowed he would tease me,
He promised to bring me a bunch of blue ribbons
To tie up my bonnie brown hair.
Chorus()
He promised to buy me a pair of sleeve buttons,
A pair of new garters, that cost him but two pence,
He promised to bring me a bunch of blue ribbons
That tie up my bonnie brown hair.
Chorus()Why didn't anyone sing the word chorus?
CHORUS (sound):
With a *sound sound* here
And a *sound sound* there
Here a *sound*, there a *sound*
Everywhere a *sound sound*
Old MacDonald had a farm
E-I-E-I-OOld MACDONALD had a farm, E-I-E-I-O
And on his farm he had a cow, E-I-E-I-O
CHORUS (“Moo”)
Old MACDONALD had a farm, E-I-E-I-O
And on his farm he had a pig, E-I-E-I-O
CHORUS(“Oink”)
Old MACDONALD had a farm, E-I-E-I-O
And on his farm he had a duck, E-I-E-I-O
CHORUS(“Quack”)Notice when the chorus was defined, it included a sound in parentheses. Consider CHORUS() as a function definition. Anything in the parentheses is a parameter that is passed to the function.
More than 1 item may be passed to a function by separating the parameters by a comma. The next song will demonstrate this.
CHORUS (thing, place, did):
‘Cause I stuck a *thing* in a hole in the *place*
and it *did*, and *did*, and *did*.
I’m going to be the most famous kid of all,
because of the thing that I just did.
CHORUS(“seed”, “ground”, “grew”)
I’m going to be the most famous kid of all,
because of the thing that I just did.
CHORUS(“plug”, “boat”, “floats”)Adjust the lyrics to the song Farmer in the Dell so that the chorus may be called with paramerters.
The farmer in the dell
The farmer in the dell
Heigh ho the derry-o
The farmer in the dell
The farmer takes a wife
The farmer takes a wife
Heigh ho the derry-o
The farmer takes a wife
The wife takes the child
The wife takes the child
Heigh ho the derry-o
The wife takes the child
The child takes the cow
The child takes the cow
Heigh ho the derry-o
The child takes the cow
The cow takes the pig
The cow takes the pig
Heigh ho the derry-o
The cow takes the pig
The pig takes the dog
The pig takes the dog
Heigh ho the derry-o
The pig takes the dog
The dog takes the cat
The dog takes the cat
Heigh ho the derry-o
The dog takes the cat
The cat takes a mouse
The cat takes a mouse
Heigh ho the derry-o
The cat takes a mouse
The mouse takes the cheese
The mouse takes the cheese
Heigh ho the derry-o
The mouse takes the cheese
The cheese stands alone
The cheese stands alone
Heigh ho the derry-o
The cheese stands alone
Heigh ho the derry-o
The cheese stands aloneRecursion is a concept that confuses some people but is often very useful. Let's demonstrate it using the Song that Never Ends.
I know a song that gets on everyone's nerves,
everyone's nerves, everyone's nerves,
I know a song that gets on everyone's nerves,
and this is how it goes.
CHORUS:
This is the song that doesn't ends
It just goes on and on my friend
Some people started singing it not knowing what it was,
And they'll continue singing it forever just because
Chorus()