Therapy is guided by principles of motor learning: Child is always encouraged to watch therapist's face directly or while looking in a mirror, in a "look, listen, do what I do" approach. Therapy addresses a small number of targets, with large amount of practice for each target, touch cues are often used, with verbal placement instructions appropriate to the child's age, with frequent feedback regarding accuracy of speech movements early in the intervention process, then faded as therapy progresses. Therapy targets increase in complexity over time, with success on previous targets. Always, functionality of targets is considered, as well as linguistic and phonetic complexity. Parents are included in at least a portion of all sessions, so they can provide intervention in the home on a daily basis in more natural contexts. In severe CAS, simple language boards for functional communication are often used. PECS is offered as an option for functional communication in some cases, as well as a variety of iPad communication apps.