After asking a question about the night sky, Tara Ward gently reminded her students, “Please use English,” when she hears an answer in Korean or Vietnamese. Ward, a teacher in a regular second-grade classroom at Mill Creek Elementary School, works with three Korean and two Vietnamese children among her 19 students. As of last week, 341 students in the Bulloch County public schools qualified for English to Speakers of Other Languages services, reported ESOL coordinator Georgiana Darsey.