De Niro attended PS 41, a public elementary school in Manhattan, through the sixth grade. He also began acting classes at the Dramatic Workshop and made his stage debut at age 10, playing the Cowardly Lion in a school production of The Wizard of Oz. He later went to Elisabeth Irwin High School, the upper school of the Little Red School House, for the seventh and eighth grades. He was then accepted into the High School of Music and Art for the ninth grade, but only attended for a short time before transferring to a public junior high school: IS 71, Charles Evans Hughes Junior High School. De Niro attended high school at McBurney School and then later, Rhodes Preparatory School. He found performing as a way to relieve his shyness, and became fascinated by cinema, so he dropped out of high school at 16 to pursue acting. He studied acting at HB Studio and Lee Strasberg's Actors Studio. De Niro also studied with Stella Adler, of the Stella Adler Conservatory, where he was exposed to the techniques of the Stanislavski system.