Cameron Diaz plays an extremely self-centered individual who is looking for a rich man to marry after her fiancee dumped her because she was a gold digger. (She claims she caught him with the dog and peanut butter.) Teaching junior high gets in her way as she "needs" augmentations to be able to compete with all those Barbie Dolls out there. She uses movies to babysit her class. The gym teacher is interested in Cameron (she don't date gym teachers). Cameron in turn has her eyes on a nerdy substitute teacher (Justin Timberlake) whose family comes from money. He however likes Amy Squirrel.
Meanwhile in class there is a student who could be a young self centered Diaz who badgers a boy who shows her interest, sort of a parallel to her "miserable" life. Lucy Punch plays Amy Squirrel (as a red head) an overly perky teacher who becomes Diaz's school nemesis. Diaz helps the junior high car wash using moves she learned watching Paris Hilton commercials, pocketing some of the money for her "t#t jar."
The movie changes gears when Cameron finds out the teacher whose class gets the best test scores gets a bonus. The outrageous practices of Diaz both as an apathetic and serious teacher is the core of the movie.
F-bomb, nudity(not Diaz or Punch), crude sexual humor, Timberlake dry humping Diaz, bad music, worse poetry, and Lincoln rolling over in his grave.