Last night I finished a biography about Helen Keller.
She was a girl who couldn’t see, hear, or talk.
Then she had a teacher named Annie Sullivan.
She learned a lot from the teacher.
But soon the teacher couldn’t see either.
Helen learned how to write letters in the palm of her hands. If she could see, she could use sign language like other deaf/mute people. Here is a demonstration:
And she learned braille so she could read with her finger tips.