Well, I hope you weren't planning to teach English and grammar (*ba-dum-ching* thank you thank you)
Anyway, you might mosey on over to johntaylorgatto.com, and find out why a New York State and New York City Teacher of the Year quit his teaching career in disgust. His well-researched book, the Underground History of American Education (read it on-line for free!) details the progression of American schooling from simple schools that had farm kids mastering Shakespeare by eighth grade, to the hideously expensive but broken* socialist mess we have today.
*(actually, the gubbermint schools were DESIGNED to be "broken"--turn-of-the-century progressives wanted schools pumping out obedient worker bees, not liberally-educated, well-read individuals who might get too uppity, start questioning things, and upset applecarts. Read the book.)