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Girls Just Want to Have Sums
Regarding Margie

I don't have any opinions anymore. All I know is that no one is better than anyone else, and everyone is the best at everything.
Seymour Skinner

Girls Just Want to Have Sums is the nineteenth episode of Season 17.


After women of Springfield criticize Principal Skinner because he thinks girls are bad at math, the school is divided into boys and girls, but the math class for girls doesn't teach real math, so Lisa disguises as a boy to infiltrate the boy math class.

Full Story

The Simpsons and many other prominent Springfieldians go to see a performance of Stab-A-Lot: The Itchy and Scratchy Musical. The show pretty much comprises the homicidal cat and mouse doing what they do best, but all in song. The audience is enthralled by the performance and give it a standing ovation. Julianna, the director comes out on stage, accompanied by Principal Skinner, to acknowledge the cheers. Skinner reveals that she used to be a student of Springfield Elementary and, while acknowledging all her accomplishments, when Julianna points out she got a B in math, Skinner then says "you are a girl". Whether he intended something else or not is unknown, but unexpectedly, everyone in the audience - women, in particular - are shocked.

The next day, the teachers of Springfield Elementary and other ladies stage a protest outside the school against Skinner's remark, much to the displeasure of Superintendent Chalmers. Skinner assures him that he will take care of it and holds a conference in the school's auditorium, inviting all the protesting ladies to attend. There, he tries to pacify them - by wearing a skirt (revealing his hairy legs), much to the amusement of his students, but not the ladies. He tries saying that men and women are equals, but unique. Nothing he says has a good effect on the ladies, so finally, he starts hyperventilating and collapses on stage. Chalmers comes out and introduces them to their new principal - a lady principal, that is. - As her first act as principal, Melanie Upfoot separates the boys and girls into separate schools. The move is met with mixed reactions. Principal Upfoot seems to be even more gender-biased than Principal Skinner, having done up the girls' half of the school to be beautiful, clean and have paintings in the hall while letting the boys' side end up looking like a war zone.

The next day, Otto drops off the girls at their school, and then he switches the radio to rock music, and releases the boys from their cage in the bus, so they can attend their school. Lisa seems to feel right at home in the girl-friendly school, with the fountains, paintings, pink paint and all. She attends math class, which will be taught by the new principal herself. However, instead of the usual number-crunching or the like, she starts speaking about the philosophy and magic in math. While the other girls enjoy it, Lisa asks whether they will get down to doing problems, to which the principal replies that is how boys look at math. Disillusioned by this pro-female bias toward one of her favorite subjects, Lisa walks out and gets into the boys' school compound. She peeps into one of the classrooms and sees a math class in session, where actual, accurate math is being taught (exactly how she likes it). She is caught by Skinner, now an assistant to Groundskeeper Willie and told to leave.

After a chat with Marge, Lisa decides to disguise herself as a boy, named "Jake Boyman" and attend the boys' school. Everyone calls her "Toilet" due to first appearing with toilet paper on her shoe. During the math class, Lisa gets a problem wrong, but she feels happy to have learned something without anyone judging her.

Unfortunately, being with the boys means having to act like one. Lisa gets into a fight with Nelson and, as much as she tries to use her intelligence to escape her situation, she gets beaten up. When Bart returns home that day, he walks up to Lisa's bedroom door laughing and tells her that she missed out on Nelson pounding a "dweeb". However, his impression of the fight becomes more tragic and upsetting rather than funny when he sees Lisa, still dressed as Jake, bruised and dirty, sitting on her bed, crying softly. He feels sorry for Lisa and tells her that he will teach her to act like a boy.

Meanwhile, Homer gets himself in hot water with Marge as his male-dominant behavior makes her enraged. He ends up sleeping on the couch for his comments. It is also revealed that Marge used to like math but thanks to passing so much time with Homer, she can't usually do housekeeper-like math problems. The next night, Homer tries to apologize for his sexism, but lacks both intellect and sensitivity to this and is once again forced to sleep on the couch. He then insults Santa's Little Helper and somehow ends up in the doghouse literally.

Thanks to Bart's help, she starts acting more like a boy, including beating up poor Ralph Wiggum. However, Lisa does well in math class. Finally, at an award ceremony, "Jake" wins an award for outstanding achievement in the field of mathematics. She then reveals her identity to the whole school, and explains why she had to disguise herself. Bart gets up and tells everyone that she did well only because she was acting like a boy. Angry at hearing this, she throws her award at Bart, but ends up hitting Ralph. Shocked at how "boy-like" she has become, she apologizes to Ralph and wonders why the world is so sadistic. The boys embark in a chair fight as Lisa claims she is glad that she is a girl and that she is good at math. (P.S. Skinner is reinstated as principal in The Monkey Suit).


"King Of Cats"

  • Itchy, Scratchy, Itchy, Itchy, Scratchy
    Itchy, Scratchy, Itchy, Itchy, Scratchy
    From the day you are born in the alley
    To the day you are hit by a car
    There's cream to drink
    And mice to eat
    And great big balls of yarn
    It's the circle...
    The circle of...knife.

"It's Symbiotic"

  • [Sung by Itchy and Scratchy]
    I don't know why I trust him
    I guess some cats just never learn
    I feel so good when I have crushed him
    Or left him mangled, maimed, and burned
    I supposed it's symbiotic
    And perhaps a bit erotic
    'Cause pain is my narcotic
    You really liked it?
    Yes, I loved it
    And that's why we're always...

    and Biting
    And dynamite igniting

"Knives Finale"

  • It's the circle
    The circle of knife
    Yes, the circle
    The circle of knife


  • I know what girls like
    I know what god wants/gods want
    Sucker, (laughs with the teeth and mouth closed)

Broadcasting Information


  • 1st Airdate: Sunday, April 30, 2006
  • 2nd Airdate: Sunday, July 9, 2006


  • 1st Airdate: Sunday, September 17, 2006


  • 1st airdate: Tuesday, 15 August 2006


The episode's title is a reference to the Cyndi Lauper song, Girls Just Want To Have Fun.

Season 16 Season 17 Episodes Season 18
The Bonfire of the ManateesThe Girl Who Slept Too LittleMilhouse of Sand and FogTreehouse of Horror XVIMarge's Son PoisoningSee Homer RunThe Last of the Red Hat MamasThe Italian BobSimpsons Christmas StoriesHomer's Paternity CootWe're on the Road to D'oh-whereMy Fair LaddyThe Seemingly Never-Ending StoryBart Has Two MommiesHomer Simpson, This is Your WifeMillion-Dollar AbieKiss Kiss Bang BangaloreThe Wettest Stories Ever ToldGirls Just Want to Have SumsRegarding MargieThe Monkey SuitMarge and Homer Turn a Couple Play