Sullivan's curriculum involved a strict schedule with constant introduction of new vocabulary words; however, Sullivan quickly changed her teachings after seeing they did not suit Keller. Instead, she began to teach her vocabulary based on her own interests, by spelling each word out into Keller's palm; within six months this method proved to be working, as Keller had learned 575 words, some multiplication tables, and the Braille system. Sullivan strongly encouraged Helen's parents to send her to the Perkins School, where she could have an appropriate education. Once they agreed to this, Sullivan took Keller to Boston in 1888 and stayed with her there. Sullivan continued to teach her bright protégée, who soon became famous for her remarkable progress. With the help of the school's director Anagnos, Keller became a public symbol for the school, helping to increase its funding and donations and making it the most famous and sought-after school for the blind in the country. However, an accusation of plagiarism against Keller greatly upset Sullivan: she left and never returned, but did remain influential to the school. Sullivan also remained a close companion to Keller and continued to assist in her education, which ultimately included a degree from Radcliffe College.