WHY PBISS? From its inception, our school’s vision has been to serve the needs of the local community. Although we have grown as a school, we still hold true to our original values of providing an international education with a Thai heart. PBISS is a school that focuses on academic success, individual growth and emotional development with the same level of importance. Delivering on our vision allowed us to grow from 20 to 700+ students, to become a Cambridge certified school, to become a WASC accredited school, and to establish our Cambridge x STEM+ curriculum.