High quality early childhood education is powerfully impactful on the global development of children on the autism spectrum. This lecture presents the outcomes for young learners with autistic traits attending a full-day inclusive preschool at a Montessori Children’s House program. The Montessori Method is centered on both a highly prepared learning environment and multi-age, hands-on, individualized instruction. Case examples highlighted in this presentation illustrate how the methodology, environment, and supports align with best practices for early education and autism. Outcomes for students identified as at-risk or identified with autism will be analyzed and discussed.