Trina Petty-Rice is principal of Mark Twain Elementary in the Brentwood School District, which was ranked 7th in the state in the 2016 Missouri Assessment Program scores. At Mark Twain, 89.5 percent of students tested Proficient or Advanced in ELA (Communication Arts), which was 7th in the state, and 87. percent of students tested Proficient or Advanced in Math, which was 5th in the state.
