Theo and Cockroach prepare for an important math test. Cockroach has learned the material, but grows frustrated and refuses to continue studying. Mrs. Westlake has to be hospitalized with complications in her pregnancy. Cliff delivers her healthy baby daughter. Theo and Cockroach are thrilled to hear that Mrs. Westlake is all right, and somewhat relieved to learn that their test will be postponed. The next day, an amazed Theo tells Cliff that Cockroach berated his classmates for ignoring the substitute and goofing off. He declared that Mrs. Westlake had worked very hard to teach them the material, and that they owed it to her to give their best effort. The class visits Mrs. Westlake in the hospital. She takes Cockroach aside and thanks him for his speech. Cliff grows frustrated in his efforts to teach Rudy to ride a bike, but Clair gets the job done with ease. Denise tries to help a self-conscious Vanessa hide a zit.