Nathan. Nathan was diagnosed with a devel- opmental delay; in addition, his speech-language pathologist (SLP) reported that he had severe childhood apraxia of speech. Nathan had a limited speech sound repertoire and inconsistent speech sound productions. He had very few intelligible words (e.g., hi, car, bye – bye). Nathan could imitate the consonants m, b, p, t, and d. His connected speech consisted mainly of vowels. At school, Nathan communicated using gestures, vocalizations, speech approximations, and the same types of classroom displays described previously for Robyn.