Rosanne Achin Housman, was a main character appearing in the High School Years Series. She was the teacher of Tom, Trent, Willy, and Caillou in Biology. She taught her students about Biology. It is unknown what Tom and the gang’s current grade is. She first appeared in the episode “High School Begins”. She last appeared in “The Final Frontier”. She’s currently teaching Upper-Class.
Ms. Achin was very friendly. She was always seen in a good mood, though she often got irritated when her students talk during class. She was known to give out quizzes every week, which was the reason why Tom and the gang are failing Biology. To make sure they study, Ms. Achin always emailed Uncle Jerry about it, much to Caillou’s dismay. Their grades started to improve as the series progressed. She’s been appearing in almost every episode since her debut in “High School Begins”, up until “The Final Frontier”. In “Physically Geometric Artists”, It is revealed by Ms. Ramsour that Ms. Achin is teaching Upper-Class.
Ms. Achin had tan skin, brown eyes, and brown hair. She also wore glasses. Her outfits varied throughout the series, but she was mostly seen in one outfit, which consisted of a black short-sleeved dress with matching shoes.