1.1: What is Language Development?
Language is the communication of information through symbols arranged according to systematic rules. Speech and language are tools that humans use to share their feelings. Speech is talking, one way that a language can be expressed. In fact, language is a particular kind of system for encoding and decoding information.Language may also be expressed through writing or gestures in the case of people who have neurological disorders and may depend upon eye blinks or mouth movements to communicate. Language development is a process that starts from early age of every person’s life, when a person begins to acquire language by learning it as it is spoken and by imitation. Children's language development moves from simple to complex. Infants start without language. Children of four months of age, can read lips and discriminate speech sounds. The language that infants speak is called babbling. Infants use their bodies, vocal cries and other preverbal vocalizations to communicate their wants, needs and dispositions. Even though most children begin to vocalize and eventually verbalize at various ages and at different rates, they learn their first language without conscious instruction from parents or caretakers.
1.2: Criteria of Language development
To parents, the sounds of their infant babbling and cooing are music to their ears. These sounds also serve an important function. They make the first step on the road to the development of the language. There are different criteria in Language development. Just as cooing, echoing, babbling Cooing: Cooing means, to express or utter with soft murmuring sounds. A 2-month-old baby starts to pay more attention to her world. Most of all, baby loves the sound of mother’s voice and follows it around the room with real concentration. Mother’s different tones of voice fascinate her; she'll respond to her high-pitched, singsong tone