Pi (π)
A pi was discovered,
In ancient Greek times,
Didn't have apples,
Bananas, or limes...
Unlike desserts,
Those pies people eat,
This pi's a math constant,
But it's still really sweet...
Pi's pretty easy,
It’s 3.14,
It used to confuse me,
But not anymore!
I use it for math,
It's really quite swell,
Although it's irrational,
Pi works pretty well...
Areas of circles?
Try πr^{ 2}
It's the cool constant,
It deserves to be shared...
For circumference you need,
A quick formuli,
Here it is mister,
You gotta' use pi!
(π⋅d)
Yes, pi's the cool constant,
Without it I'd cry,
'Cause I'd fail my math,
If I tried to use pie...
Watch Mr. R.'s Pi Day Music Video! 

Math Challenges 
If a plate has a radius of 8 inches, what is its circumference? 
If a bicycle wheel has a diameter of 30 inches, how far will it roll in one complete revolution? 
If a pizza has an area of 50 square inches, what is its radius? (approximately) 
Like geometry? Watch Mr. R.'s hypotenuse music video!
Watch Mr. R.'s math music video about right triangles! 
if youtube is blocked, watch it here Hypotenuse 


