3rd Grade Female Bear is an unnamed third grader who made her first appearance in the episode "Arthur Makes the Team." She goes to Mighty Mountain Elementary School and is also on the Mighty Mountain Soccer Team. She usually is seen in episodes where Mighty Mountain is often seen competing against Lakewood most of the time in sports although there have been a contest one time. Her personality is not known(since she is a background character), but she appears to get along fairly well with Francine in the episode April 9th where she and Francine were thumb wrestling each other.