Homer waits for a parking official to release his car after he parked in a No Parking zone.
Homer: They expect me to sit here from nine to five? That's . . . how many hours?
[He checks his watch.]
Homer: Ten, eleven . . . denominator . . . Oh, where’s Lisa when you need her?!
Grampa Simpson tries to convince Lisa that due to their family genetics, all Simpsons begin to become less smart around her age.
Grampa: Your brother’s coming along nicely. Look at Bart’s homework. Back when he was your age, he was smart as a chimp.
[He shows her one of his arithmetic tests from second grade, with a smiley face from the teacher.]
Lisa (gasps): This is just two years ago!
Grampa: That’s right. Then the Simpsons genes kicked in.
[He flips through the stack of math tests, showing the faces changing gradually from a smiley face to a frowny face to a skull and crossbones.]
2. Lisa solves her Professor Provolone’s Picto-Puzzle, which requires recognizing numerals and their mirror images.
1. In a flashback to five years earlier, Homer and Marge bring Lisa with them to meet with the school psychologist, Dr. J. Loren Pryor, about Bart’s worrying emotional state. Dr. Pryor observes Lisa quickly solving a jigsaw puzzle.
Dr. Pryor: Lisa, how old are you?
Lisa: I am three and three-eighths.
Dr. Pryor: Mmm. Lisa, if I have five apples and I take away three apples, how many apples do I have left?
Lisa: Two apples.
Homer: Wait a minute!
[He does mental arithmetic.]
Homer: She’s right!
2. Two girls at a well-funded preschool play patty-cake while chanting the digits of pi, trailing off as the camera turns to characters who begin a conversation.
Girls: Cross my heart and hope to die / Here’s the digits that make pi / 3.1415926535897932384626 . . .
See Dr. Sarah Greenwald's pi worksheet.
Principal Skinner brings in a robot to promote the Springfield Knowledgeum, a hands-on learning museum.
Robbie the Automaton: Have you ever wondered what it feels like to touch a star?
[Milhouse imagines touching a star and it results in his arm being dissolved.]
Milhouse (screams): Cool!
Robbie the Automaton: Or which of the Three Stooges had the heaviest brain?
[Nelson imagines studying the brains on scales, with related math written on the board.]
At home, Mr. Burns shows Homer the only trillion dollar bill in existence.
Homer: Wow! That must be worth a fortune.
[IRS agents burst in.]
IRS agent 1: Nobody move!
Mr. Burns: What the?!
IRS agent 2: Montgomery Burns, you're under arrest for grand, grand, grand, grand larceny.