This best practice brief is a concise article detailing research and practical information regarding Response to Intervention (RTI) as it relates to early childhood education. Teachers who are seeking ways to meet the needs of all their children will find background information, links to websites about RTI, titles of books which can be used for further study, practical tips, and supportive details that will help them move forward in their preparations for their classrooms. Teachers in inclusive classrooms may also want to review other REC Building Blocks articles in the area of special education. Helping Children with Disabilities Access the Early Childhood Curriculum, REC # 12745, and Universal Design for Learning in an Early Childhood Inclusive Classroom, REC # 14030, are available now and can also be added to a folder in your REC Collection. (nmb)