Mr. Trieu has been teaching at LACHSA since the 2012-2013 school year. Before coming to LACHSA Mr. Trieu was in the Hacienda La Puente Unified School District for four years as a substitute teacher and math teacher at Los Altos High School. After Los Altos High School Mr. Trieu taught at Beverly Hills High School. Mr. Trieu grew up in Los Angeles County, receiving his Bachelors degree in Mathematics of Economics at University of California, Los Angeles and receiving his teaching credentials at California State University, Los Angeles. Mr. Trieu has taught Algebra 1, Geometry, Algebra 2, Honors Algebra 2, Trigonometry & Math Analysis and Probability & Statistics.