This report is an analysis of the Teacher and Student Advancement (TAP) System on student achievement and teacher engagement in Louisiana between 2010-11 and 2011-12. It analyzed: (1) student achievement data; (2) web-survey self-report questionnaire data for each TAP role; and (3) on-site interview and observation data; and data from (d) random-interval work-sampling. The data are from 17 TAP elementary, middle and high schools and from a group of propensity-score matched comparison schools. At the initiation of this analysis in 2010, the treatment schools had all completed at least two years with TAP; that is, they had accomplished the planning and initiation activities. The following study question were examined: (1) Do students perform better in TAP schools? (2) Do TAP teachers teach differently? and (3) Is the engagement of teachers with the TAP System and its components related to results for students, teachers and schools? [The report was prepared by Interactive, Inc.]