In previous posts I have gone over incorporating literature in to mathematics.  Here is another idea incorporating poems in your lessons.  Below is a poem featured by Math Story there are also many sites that allow you to look and use poems in your classroom.

Cool as a circle,
Don't fool around,
Got somewhere to go,
Covering ground...
Yeah, I'm a circle,
3-60 degrees,
Rolling in circles,
Gliding with ease...

Having literature in your classroom not only increases literacy among your age group, but increases how much they like math.  Having students that want to be in your class everyday makes teaching worthwhile.  Happy Teaching!