To gain professional experience and move to the fifth grade, students in Fudêncio's class spend time working at the Biguzitos chip factory.
Tropes:
- An Arm and a Leg: Fudêncio forces Peruíbe to put his hand inside the chip machine, which severes his hand.
- Dr. Jerk: Dr. Dráuzio Varíola forces the children to work overtime.
- Downer Ending: Conrado is forced to work at the factory for one more year while all his classmates don't have to work anymore at all.
- Embarrassing Slide: Dráuzio Varíola presents slides to the kids about the factory. Some of them were replaced by embarrassing pictures of Conrado as a baby.
- Hand-or-Object Underwear: In one of his baby pictures, Conrado is seen naked covering his crotch with his hands.
