Deaf people learning with normal people

Many people are of the opinion that deaf people cannot learn together with those who have no disability whatsoever. But I can prove this wrong.
I have seen a deaf person who has passed through high school and college together with normal people. If asked how they cole with the teaching, they will let you know that they do not try to listen to the teacher but solely depend on the notes. This is because it is impossible for a deaf person to hear whatever the teacher is saying.
Their eyes does the works that their ears cannot do. They tend to understand quickly while watching more than the normal people.
Remember the fact "when one sense organ stops working, the remaining ones become hyperactive.
Deaf people can conviniently learn together with people without any disability as long as there is a not to rely on.