How does mrs. sullivan get helen keller to understand the word water

He would spell words into her palms,which she thought was a game. She went to a old pump house where she put her hands under water,and he spelled water into her hand many times. Then he wrote in her autobiography “As the cool stream gushed over one hand she spelled into the other word water,first slowly,then rapidly...” later she learned to read write and speak.

Srry if I’m wrong,it’s the best I could do. Hopefully it helped a little

Not really sure but wow ur work is hard