|Last Appearance||"The Finale"|
|Voiced By||April Winchell|
Abriola Stark is the eccentric 7th-grade Math teacher at Hazelnut Middle School. She is very into her lessons, and is passionate about every aspect of math.
Though her main occupation is teaching math, she has done other things, such as when she wrote the lyrics to the songs in the school musical "Detention" (over which she and Mr. Clapper got into a fight) ("You Oughta Be in Musicals"); and taking her math class on a trip to Fuzzy World (which no one was able to attend to due a lice outbreak) ("The Wash-Out"). She is also in charge of Drama Club and puts on various productions throughout the series ( as seen in "Romeo and Juliet", "A Kosher Christmas", "You Oughta Be in Musicals" among other episodes).