Rhode Island is committed to ensuring that all educators receive fair, accurate, and meaningful educator evaluations that provide information that can help all teachers improve and refine their practice. Currently, districts in Rhode Island may submit a district-designed model for approval that complies with the Educator Evaluation System Standards or adopt the Rhode Island Model Teacher Evaluation and Support System (Rhode Island Model). This document describes the process and basic requirements for evaluating and supporting teachers with the Rhode Island Model. Through this model, the hope is to help create a culture where all teachers have a clear understanding of what defines excellence in their work; receive prioritized, specific, and actionable feedback about their performance; and receive support to continuously improve their effectiveness, regardless of the number of years they have been teaching. In this guidebook aspects of the model that local education agencies (LEAs) can customize as Flexibility Factors are clearly separated and labeled. Throughout the guidebook, corresponding resources available on the Rhode Island Department of Education (RIDE) website are indicated. These resources aim to help educators understand how to best implement various aspects of the Rhode Island Model. Resources include online training modules, sample Student Learning/Outcome Objectives, and a suite of calibration protocols designed to help school and LEA leaders facilitate ongoing calibration exercises. Any public school employee working under a teacher certification whose primary responsibilities include instructional planning, managing a classroom environment, and student instruction should use the teacher version of the Rhode Island Model. [For Edition IV, see ED591449.]