A fury or, as Grover calls them, Kindly Ones.
Mrs. Dodds was a math teacher.
Mrs. Dodds.
Mrs. Dodds
Mrs. Dodds. She was the Fury. The second pre algebra teacher (after Percy "killed" Mrs. Dodds) was Mrs. Kerr.
At the beginning of the first book Percy gets attacked by his math teacher, Mrs. Dodds. She gets him into an empty room and turns into a Fury (a kindly one).
Mrs. Dodds
Mrs. Dodds considered Percy a troublemaker because of all the accidents Percy had in his past life. Also, Mrs. Dodds is one of the Furies, a monster of Hades. Demigods and monsters do not get along too well.
They didn’t know who he was talking about and that there wasn’t a Mrs. Dodds at the school
Fury Alecto was disguised as Mrs. Dodds, the pre-algebra teacher who serves Hades
Mrs. Dodds was his teacher and she turned into a monster and tried to kill him.
Mrs. Dodds
Yes, Mrs. Dodds, who is a teacher at Grover's school in "Percy Jackson & The Olympians," does pick on him. She seems to have a particular disdain for Grover and often targets him in class, which adds to his feelings of anxiety and insecurity. Her behavior contributes to the overall tension in the story and foreshadows the supernatural elements that will unfold.