Insert Figure 1 Here Moreover, in a dynamic sense, as a learner’s language skill improves, we can visualize both concentric circles enlarging simultaneously with the outer (listening comprehension) circle always embracing a far greater range than the inner (speaking) circle. Emphasis on the inner circle (speaking) severely retards the expansion of the outer circle (listening comprehension). The requirement to respond orally imposes listening for speaking and results in impaired comprehension. Asher (1969, p.13) concluded that “the stress of trying to pronounce the alien utterance may retard listening fluency…The optimal strategy may be serial learning in which one achieves listening fluency just before one attempts to speak.” Ley and Locascio (1972) state: “One must make association to verbal materials during learning in order that the material can be later recalled, and that some procedure such as repeatedly saying the material aloud interferes with the association process and, therefore, has a detrimental effect on learning.”