**Happy Pi Day**

Happy Pi day to you,

Happy Pi day to you,

Happy Pi day everybody,

Happy Pi day to you.

(to the tune of "Happy Birthday")

**Oh Number Pi**

Oh, number Pi

Oh, number Pi

Your digits are unending,

Oh, number Pi

Oh, number Pi

No pattern are you sending.

You're three point one four one five nine,

And even more if we had time,

Oh, number Pi

Oh, number Pi

For circle lengths unbending.

Oh, number Pi

Oh, number Pi

You are a number very sweet,

Oh, number Pi

Oh, number Pi

Your uses are so very neat.

There's 2 Pi r and Pi r squared,

A half a circle and you're there,

Oh, number Pi

Oh, number Pi

We know that Pi's a tasty treat.

(to the tune of "Oh Christmas Tree")

**Pi Day Song**

Refrain:

Pi day songs All day long.

Oh, what fun it is,

To sing a jolly pi day song

in a fun math class like this. (Repeat )

Verse: Circles in the snow,

Around and round we go.

How far did we have to run?

Diameter times pi! (Refrain )

(to the tune of "Jingle Bells")

**Area of a Circle**

The Area of a circle is Pi r squared

Pi r squared

Pi r squared

The Area of a circle is Pi r squared

No matter what

The circumference of a circle is 2 pi r

2 pi r

2 pi r

The circumference of a circle is 2 pi r

All around the circle

(To the tune of Wheels on the Bus)

**Area of a Circle Chant**

The area of a circle is pi r squared

r squared means r x r

(repeat)

**Pi Jokes**

Q: What do you call what happens when you cut a jack'o'lantern by its diameter?

A: Pumpkin Pi!

Mathematician: Pi r squared

Baker: No! Pie are round, cakes are square!