sounds in addition to b, n, m, k, and an uncon- ventional glottal sound. Expressively, Robyn relied heavily on gestures to communicate, (head nod/shake, shoulder shrug, pointing), and she was beginning to use several manual signs. Robyn seldom used her voice output system (an Easy- TalkTM). In her classroom, she had access to single photographs and Picture Communication Symbols (PCS; Johnson, 1994), and several activity-specific communication boards.