- Billy presents his diorama to the class and it's a big hit; Ms. S loves the glitter, so that's one point for Sal.
- Oh, and Emma teases Billy some more about saying "Papa," which makes him super peeved.
- After school, Papa wants to know the scoop and is stoked that Ms. S liked the glitter/mica.
- Since Sal is taking a nap, Billy and his dad get some alone time together, which is perfect because Billy has a big topic to bring up: not calling his dad Papa anymore.
- Billy just goes for it and asks his pops if he can start calling him Dad, and Papa says that is totally fine. Billy also wants to tell his mom that he'll start calling her Mom instead of Mama when she gets home from work. (FYI, Shmoopers, Billy might have changed his mind on names, but the book's narrator sticks with his old habits. Yep, the narrator still calls Billy's parents Mama and Papa, so that's what we do, too.)
- Since it feels weird at first to call his dad by a new name, Billy and Papa practice together. And this actually turns out to be pretty fun.