Building Blocks provides early intervention evaluation and treatment for children identified through the committee on special education (SCE) and children with autistic spectrum disorders. The population spans from toddlers through school age. Treatment focuses on children within the family context. We offer Floor Time® based individual and group treatments. Groups are run with three to four pairs of children and their caregivers meeting three times weekly. Two clinicians facilitate each group. Group members also participate in an individual session once a week, either at home or in the clinic. The group room is designed around Floor Time® principles, to maximize engagement and self-regulation in a sensory-based setting.