The purpose of AAC is to teach the child a different way to communicate. Adults give models of speech that help their children learn to talk. Parents also need to give models when the child is learning to use AAC. Parents may be asked to use the pictures, communication book, or speaking device to help their child learn.
Parents may also need to learn sign language or to learn how to use a high-tech AAC device. As with learning any new skill, frequent practice between therapy sessions is important.