Cosby was the class president as well as captain of both the baseball and track and field teams at Mary Channing Wister Public School in Philadelphia. Teachers noted his propensity for joking around instead of studying, and he described himself as the class clown. At FitzSimons Junior High School, Cosby acted in plays and continued to compete in sports. Cosby attended Philadelphia's Central High School, a magnet school and academically rigorous college prep school, where he ran track and played baseball, football, and basketball. He transferred to Germantown High School but failed the tenth grade.