THIS STUDY AIMED TO INVESTIGATE THE IMPLEMENTATION AND THE CHALLENGES OF DUAL CURRICULUM IN ENGLISH TEACHING AND LEARNING PROCESS AT SMA PLUS NEGERI 17 PALEMBANG. A CASE STUDY OF QUALITATIVE METHOD WAS APPLIED IN THIS STUDY. THE PARTICIPANTS OF THIS STUDY IS ONE ENGLISH TEACHER AND 59 STUDENTS. OBSERVATION AND INTERVIEW WERE CONDUCTED TO COLLECT THE DATA FOR THIS STUDY. THE PARTICIPANTS OF THIS…