Language acquisition is closely related to the cognitive development. It is proven with the research findings conducted by the linguist and psychologist, Piaget, Brunner, Vigotsky, etc. From the critical phase or the child's sensitivity phase, parents and teachers may optimally help the child's sensitivity phase to develop the child's language ability. As it is believed by Gardner, the educationist as well as the psychologist, language becomes one of the indicators to see the child's intelligence.