The Magic School Bus Season 4 Episode 13 - Takes a Dive Episode Title:Takes a Dive.Episode Description:For their coral reef projects, the class each worked in partners. Wanda hates partnership, and instead of working with her partner, Dorothy Ann, Wanda does her own project. Ms. Frizzle tells the class about her great-great-great-great-great-great-great-great-grandfather, Redbeard the Pirate leaving treasure in a coral reef, and Wanda, a wannabe pirate, is for looking for it. Ms. Frizzle tells them to go two-by-two with their partners, which Wanda teams up with Dorothy Ann, Keesha teams up with Ralphie, Tim teams up with Carlos, and Arnold teams up with Phoebe. At first, Wanda didn't like that, but they learn about ocean partnerships, such as hermit crabs and sea anemones, snapping shrimp and gobie fish, sharks and remoras, etc. However, they are forced to work together when one part of the reef has been bleached out by none other than the treasure chest. They then go back to school, and open up the treasure chest, which has a portrait of Redbeard, and a model of the ship.