What does Keller say about the time she showed her mother she could spell the word "doll" with her finger?

When Miss Sullivan first arrived at the Keller home to teach Helen, she gave the child a doll.  While Helen played with her new toy, Miss Sullivan spelled the letters "d-o-l-l" into the little girl's hand.  Helen could not make the connection that the letters spelled into her hand were the name of the toy she was playing with.  However, Helen was bright and a fast learner.  She was soon able to mimic the same...

When Miss Sullivan first arrived at the Keller home to teach Helen, she gave the child a doll.  While Helen played with her new toy, Miss Sullivan spelled the letters "d-o-l-l" into the little girl's hand.  Helen could not make the connection that the letters spelled into her hand were the name of the toy she was playing with.  However, Helen was bright and a fast learner.  She was soon able to mimic the same hand movements that Miss Sullivan had shown her.  She was excited and she felt a sense of pride.  Helen wanted to show her mother the new thing she had learned.  She ran downstairs, "held up [her] hand[,] and made the letters for doll" for her mother to see.  Though Helen was able to accurately make the letter signs, the little girl had no idea what they meant.  At that time, she was merely imitating the movements that her teacher had taught her.