This research topic encompasses many aspects of language development and acquisition. How a human being masters the use of language right from infancy till death will be discussed. Mastering the syntax, semantics and pragmatics of language is important to understand the rules of language and forming meaningful sentences. Prosody is important to pronounce a word according to situation. Children start speaking holophrases at one year of age which they use for questioning and demanding. After basic language skills, formal language acquisition will be discussed regarding how reading, writing and problem-solving techniques are acquired through formal education. The role of nature and nurture in language development and acquisition will be discussed. I would touch topics like mastering a language in the early years of life; acquisition of formal language in school age children; role of nature and nurture in language acquisition; emergent literacy which talks about reading skills in children through an understanding of language; adaptation of language in adulthood; and, adaptation of language in old age. The main source that I plan to use is Sigelman’s book titled “Life-Span Human Development (2011). The author has comprehensively discussed how language develops right from infancy. Bot and Schrauf (2009) have also discussed the development of language of the life span. Gullberg and Bot (2010) have discussed the importance of gestures in language development. All of these books will be highly useful
in the research.