... recorded and then played again for the students themselves to find out the mistakes they had made. After the students realized the mistakes they had made, the teacher helped them form the sounds ... which the rationale for the research, the research problem, the purposes, the research questions, the scope of the study, the research method, the significance of the study, as well as the design ... classified in terms of:(1) The height of the bulk of the tongue in the mouth(2) The front/back position of the tongue in the mouth(3) The degree of lip-rounding(4) The length of vowels (Roach,...