... different way this can affect the message that is sent to the listener. Teachers need to make learners aware of the potential of sounds – the resources available to them for sending spoken messages. ... relevant to the research problem at the time (Johnson 1992). A case is a unit of analysis, for example, in education research, a case is probably a learner, a teacher, a class, or a school that ... destinations of the world, there is a growing awareness of the importance of and need for communicative English. The emphasis in language teaching has changed to give spoken English the same status...