Another one of the
keys to poetry is its use of sounds and rhythms.
Think of music. Most music has a
background (accompaniment)
that follow a rhythm. Its also has a melody.
The rhythm gives us the beat;
the melody is what we can hum or sing.
Click on each
file, or sound clip, below to listen to the rhythm behind the music.
Keep counting,
even if you don't hear a note play on each beat. Sometimes the beat
is silent. Sometimes the notes sound off the beat, but the beat is
there, just like your heart keeps beating no matter what you are
doing. (Each sound will play on your
computer's sound player. Give it time to load.)
The sounds you
heard have differences. Some are faster than others. But the rhythm
is the same: 1,2,3,4; 1,2,3,4; on and on. Count the four beats in
each clip. Play them again to hear the beat.
Many poems have
lines with the same number of beats. Count the beats in this poem.
How many beats does each line have?
Roses are red.
Violets are blue.
I like the rhythm
that I hear from you!
Let's change to
another beat. A waltz is one of the oldest and easiest beats to
follow. Waltzes have three beats. The first beat is the strongest or
heaviest. 1,2,3; 1,2,3; 1,2,3
Click below to hear
the dreamy waltz rhythm. Count with the beat.
If you want to
"see" the rhythm of your thoughts, you write sentences and use
punctuation. A poem has lines.
If
you try to “see” the accompaniment in a waltz, you
could imagine it this way. Each box is a “measure,” like a sentence is one full thought.
A box is like a line in a poem.
Each
box, or measure, shows the time it takes to play one set of three beats; 1,2,3 – the usual
number for a waltz.
Oom pah pah
1,
2, 3
Oom pah pah
1,
2, 3
Oom pah pah
1,
2, 3
When the
melody also has three notes, both the beat and the melody run along
without a problem. Here’s a picture of that kind of regular
measure.
Oom pah pah
1,
2, 3
When the melody has
more than 3 notes, the melody notes need to be shared among the 3
accompaniment notes. Below, the numbers are small, so this is easy
to figure out.
Oom pah pah
1,2,
3,4
5,6
Musicians might say, "Play two
notes to each beat." When you are talking about two
things in relation to each other, you have a ratio.
"Play two
notes to each beat." That is one way of
expressing a ratio: two notes to a beat.
RATIOS
A ratio compares two things in relation to
each other.
In the box above, 2 to 1
is the ratio. That means two faster notes for each slower
accompaniment note or beat.
With our boxes, you
can see that each long section (1/3 of the box) has 2 smaller
sections, each 1/6 of the box.
Oom pah
pah
1/3 1/3 1/3
1/6
1/6
1/6
1/6
1/6
1/6
Each accompaniment
note (1/3) holds two melody notes (each 1/6, both
melody notes = 2/6). In numbers, this would look like this
1/3 = 2/6
In math, this is
called a proportion. A proportion is a set of numbers
that means the same thing, the same amount. That is, 1/3 of the
box is the same as 2/6 of the box.
____________________________________________
Check
the Math Tutor to review the method for working with ratios and
solving proportions.
When you finish, return to this page and complete the exercises.
Complete the
proportions. Do the multiplication for x first. Remember, your
answer tells you what x is, the unknown number.
1. ½ =
4/x
2. 1/3 = x/15
3. 1/6 = 12/x
4. ½ = 5/x
5. 3/8 = x/24
6. 3/7 = x/14
7. 1/3 = x/9
8.
2/5 = x/10
Exercise 2: Word
Problems
You may want to
review the Tips for Solving Word Problems in the Math Tutor.
1.
Three friends buy a
package of cookies. There are 12 cookies in the package. How many
cookies should each friend get?
2. You want to make a
banner for a party. You figure out that you need 24 inches of
material. You have found some very nice, but expensive material.
The clerk told you she will sell you thirds of a yard or fourths of
a yard, but she won’t sell you inches. She doesn’t want to have to
divide a price by 36 since there are 36 inches in a yard. Reduce
your ratio to its lowest terms to get to the closest third or
fourth. You may have to reduce the numbers more than once.
24/36
= ?
3. A restaurant owner
wants a tiled wall to have a row of smaller tiles as a decorative
detail. The contractor figures out that four small tiles fit over
one large tile’s space. The length of the wall will have 65 tiles
in it. How many small tiles does the contractor need?