Houston Independent School District (HISD) strives to provide an equitable education to all of its students. In an effort to uphold the district's mission, the Teacher Appraisal and Development System (TADS) was designed with the goal of promoting effective teaching by providing systematic, rigorous feedback on teachers' effectiveness in the classroom. Through the use of comprehensive rubrics and student growth measures, TADS is intended to give teachers and school leaders the information they need to improve teacher performance in the classroom, supporting efforts to ensure that every student in the district receives the opportunity to learn from an effective teacher. The purpose of this report is to provide aggregate data of teachers' appraisals through TADS in 2016-2017. This report describes the distribution of teachers' summative ratings and the performance area appraisal components, Instructional Practice (IP), Professional Expectations (PE), and for some teachers at Teacher Incentive Fund Cycle 4 (TIF4) grant-funded campuses, Student Performance (SP). Data is disaggregated by teacher-level and campus-level characteristics in an effort to examine how these ratings were distributed throughout the district.