Marge brings food to the cafeteria at Homer’s new workplace.
Marge: Good morning, everybody. I made lemon squares.
Gary: Some, if not most, appear to be rhombuses.
Doug: Rhombi.
Gary: Both are acceptable.
Lisa’s teacher assigns her an A++ on her long division test.
At a Black Friday store sale, a customer grabs an Xbox Infinity game console, bearing the symbol for infinity after the “Xbox” name.
In a flashback to post-WWII 1940’s, Abraham Simpson is hired to pose as a model for toy soldiers. At the Whiz-Bang Toy Company, the inventors’ workshop contains a board depicting representative velocity and acceleration vectors of a force field.
Homer is driving the family in his car.
Homer: Over a lifetime of credit card debt, and paying for credit card debt with worse credit card debt, this family has two million hotel rewards loyalty points, which we can only use at the nearest Second Best Western Motel.
Lisa: Oh, Dad, the points expire at midnight.
Homer (writing on a notepad while driving): No worries. If I average 80 miles an hour for 14 straight hours, we’ll make it.
[Homer writes “80 x 14 = A LOT."]
2. At Niagara Falls, Bart and Lisa play a physical game in which each of them is wrapped in a protective bubble. Lisa imagines a path toward the game boundary which would lead her to impact Bart.
Lisa: Let’s see. The angle of rebound equals the angle of incidence.
[She charges for the game boundary but then is carried up and away by the wind.]
Lisa: I forgot to account for surface irregularities!
Professor Frink’s blackboard contains the same mathematical writing as in “Trust but Clarify” (season 28).
2. Marge confesses to Homer that she had taken the money from Lisa’s college fund to finance an invention of hers, a coaster that snaps on to the drinking glass from below.
Homer: How many of these things did you have made?
Marge: A thousand. I wanted to start a business.
Homer: A thousand, huh? That must’ve been expensive.
Marge: That’s what I thought, but it was only 65 cents apiece.
Homer: So, 650 bucks total?
Marge: When did you get so good at your timeses [sic]?
Milhouse’s father Kirk gets a job as a bat boy, and the back of his jersey reads “< 0” instead of a number.
2. Desperate to replace Bart’s expensive ADD medicine, Marge attempts to ease Bart’s symptoms using crystals. He begins earning grades of “A” on his school tests, and Lisa is suspicious that he is cheating somehow.
Lisa: So, those crystals must really be uncloggin’ your noggin, huh?
Bart: Yep. They’re making math problems like 60 plus 63 as easy as 1-2-3.
Lisa: Mmm. And what is 60 plus 63?
Bart: Oh. Umm . . .
Lisa (furiously solving the problem on paper): It’s 1-2-3!
Bart: Ay, caramba!
Lisa: I’ll figure out your scam.