One of the most important things Miss Sullivan did for Helen was to teach her how to read and write. She started by teaching Helen the manual alphabet, a system of hand gestures that represents each letter of the alphabet. Helen then learned to spell words by feeling the shape of each letter with her fingers. Once she was able to spell words, Miss Sullivan began teaching her to read by having her feel the raised letters on books and magazines.
In addition to reading and writing, Miss Sullivan also taught Helen math, science, history, and literature. She used a variety of methods to teach these subjects, such as using tactile models, diagrams, and pictures. Helen was also able to learn by listening to lectures and reading books that were read to her.
Miss Sullivan also helped Helen develop her social skills and independence. She encouraged Helen to interact with other children and adults, and to participate in activities such as playing games, going for walks, and taking classes. Miss Sullivan also helped Helen learn how to travel independently, and how to manage her own finances.
Throughout her life, Miss Sullivan was a constant source of support and encouragement for Helen. She helped her to overcome her disabilities and achieve her full potential. Helen Keller herself said of Miss Sullivan, "She opened the world to me."