The value of deaf children learning sign language is evidenced by studies of the benefits of bilingual education and psychological development.
There are many subtleties in American Sign Language that take years to master. They include things like eye gaze, body movement, and facial expressions.
In American Sign Language parts of speech look different than in a spoken language. Nouns, verbs, adjectives, adverbs, and other parts of speech are produced visually.
ASL grammar is different than English. It relies on the visual communication of concepts instead of verbal ones. It has it’s own sentence structure.