Four year-old Damien has autism and will be enrolling in an inclusive preschool program. Although he uses a few words appropriately, Damien often engages in echolalia and mostly uses gestures to communicate his needs. He also flaps his hands and rocks, particularly when he is anxious or under stress. Imagine that you are an autism specialist and the head teacher in the preschool program has asked for your help in successfully including Damien. Make three specific recommendations to the teacher for ways to work with Damien to support his communication and peer interactions.