Learn how to launch RTI successfully and improve student outcomes significantly! This principal's guide to implementing Response to Intervention (RTI) for elementary and middle school reading emphasizes the critical role administrators play in ensuring RTI success in their schools. The author makes recommendations for putting the RTI process in motion and helps school leaders: • Formulate a comprehensive assessment plan that includes an assessment calendar and a data management system • Design a yearlong staff development plan to train teachers in using data for making instructional decisions • Use data in grade-level, teacher, and parent meetings • Motivate staff for optimum success without overwhelming them