THE INFLUENCE OF PROFESSIONAL STANDARDS ON THE PERCEPTION OF TEACHER QUALITY AMONG PUBLIC PRESCHOOL TEACHERS IN DONGDA DISTRICT, HANOI Nguyen Thi Hien (Department of Early Childhood Education Ministry of Education and Training) Nguyen Thi Thanh (Central College of Education) Abstract This study focuses on assessing “The influence of preschool teacher professional standards (issued under Circular 26/2018/TT BGDĐT) on the perception of teacher quality of school teachers, public preschool in Dong D[.]