If you like the songs that we hear in class you can download them at http://www.educationalrap.com/music/math/. This website gives you the ability to download the songs that we listen to in class onto your computer. You can also find the songs on ITunes.

The Math songs on the website teaches a range of subjects that are covered in math. "The mathematics songs will bring a creative, unique approach to the classroom that will help your students understand and internalize math concepts."-Rhythm, Rhyme Results

** Circumference (It Just Makes Sense)**

**Chorus**

If I need to measure up a clock (circumference)

Measure the post on a dock (circumference)

If I’m buying rims for a car (circumference)

Hey, yo, 2πr! (It just makes sense)

If I need to measure up a hat (circumference)

Spinnin’ records like that (circumference)

If I need to pick the right jar (circumference)

Hey, yo, 2πr! (It just makes sense)

**Verse I**

Check out and see all the round things you can find

So many circles out there, it will blow your mind

It can be hard to measure distance around

But once you use a little math you can figure it out

If you need to find the distance around a circle shape

All you need is one formula and a measuring tape

Then you measure up the radius so you can figure out

‘Cause twice that radius times π is what a circle’s all about

**Chorus**

**Verse II**

You know that every circle—if it’s big or little—

Has one single point that’s right in the middle

So you start on one edge, draw a straight line

Right through the center and to the other side

That’s the diameter. And half of that is the radius

That’s the crucial number that we need to figure this out

Then we multiply it by 2π

Circumference, 2πr, there’s no need to ask why

**Fractions and Decimals**

**Chorus**

Fractions and decimals, doing math like a professional (×2)

**Verse I**

Changing fractions to decimals

It’s an action that I’m gonna profess to y’all

Now, I’m not trying to cause any stress for y’all

So listen up if you know what’s best for y’all

A fraction’s got two parts, don’t you know

The numerator on the top, denominator below

When you change to a decimal you gotta divide

Denominator on the left and put the numerator inside

1/2 gives you 0.5

1/4 is 0.25

1/3 is 0.333…

All the way out as far as you can see

**Chorus**

**Verse II**

Now, if you wanna change a decimal back, then

You need to remember the two parts of a fraction

We’ll say it again, just in case you forgot

Denominator on the bottom numerator on top

So find the decimal point. Now make the numbers on the right

The numerator of the fraction that you’re going to find

The denominator’s gonna be a power of ten

Like a hundred or a thousand, maybe even a million

So put a zero below for every digit on top

Then add a one to the front of it

Now you’ve got a denominator. Now you’ve got a fraction to use

And all you’ve got left to do is reduce, reduce, reduce

**Chorus**

**Verse III**

Now if percent is what you’re trying to find

You wanna start with a decimal like 0.9

Then you grab the point, move it two to the right

If you get 90%, then you grab the mic and say:

1/2 is 50%

1/4 is 25%

1/3 is 33.33333333%