... 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, ... 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 ... for the teacher when comparing the accuracy of the students to the target source, with the focus mainly of the pronunciation of single sounds. The passages chosen were those which consisted of...