Mrs. Krabappel awakens, covered in arithmetic quizzes, and lazily assigns grades.
2. Mrs. Krabappel’s chalkboard contains five multiplication problems and three division problems, while the students are distracted by their cellphones.
3. After Mrs. Krabappel is dismissed, Bart's new teacher, Zachary Vaughn, distributes a time-lapse video to teach multiples of 7. Set to Wagner’s Ride of the Valkyries, the video rapidly shows twenty photos, beginning with him wearing a jersey with the number 7 over a long-sleeved T-shirt, followed by photos in which he is wearing an additional jersey with the next multiple of 7, until he is wearing 20 jerseys over his T-shirt.
Bart considers sabotaging his parents’ relationship in order to get out of doing homework.
Bart: I would end all life on this planet just to get out of doing fractions.
Lisa: Fractions aren't that hard. You just have to have a common denominator. For example, one-half plus one-third equals three —
Bart: End. All. Life. On. This. Planet! (makes explosion sound)
Lisa: You'll need to know fractions to make that explosion!
Bart: I don’t care!