"Bianca Takes the Cake" is the "For Real" segment that accompanies and follows the Cyberchase segment "Shari Spotter and the Cosmic Crumpets."
In the episode, using equivalents of top-heavy fractions (improper fractions) and mixed numbers, Bianca and a girl she is helping out bake chocolate cupcakes for a Halloween bake sale, as the girl's mother has to work late. Because the 24th cupcake comes out much smaller than the rest, they use icing to fill it the rest of the way.
The next day, they have the bake sale, with the girl in a jester hat. The principal comes, and after buying the last cupcake, she jokes.
Trivia[]
This is the first Halloween segment from the show, but it doesn't follow a Halloween-themed episode.