Hi, friends! This module discuss about language acquisition and language learning. The factors influencing the acquisition of a language, like the learner factors, environmental factors and infrastructural factors are dealt in detail. Acquisition and learning. Language acquisition is the process by which humans acquired the capacity to perceive and comprehend language. As well as to produce and use language. Acquisition is implicit and subconscious which take place in an informal situation. According to Stephen Christian 1985, language acquisition does not require extensive use of conscious grammatical rules and tedious drill. Acquisition requires meaningful interaction in the target language, natural communication in which speakers are connected, not with the form of their entrances but with the messages they are convenient and understanding. Language acquisition encompasses the development of four interdependent systems. Pragmatic: communicative use of language in a social context; Phonological: perception and production of sounds to form words; Semantics: processing of meaning and grammatical use of syntactic and morphological rules to combine words into meaningful sentences. The phonological and grammatical systems constitute the language form. The pragmatic system describes how language should be adapted to specific social situations in order to convey emotions and reinforce meaning. The term acquisition is used for L1 and the term learning is associated with L2. Children acquire language through a subconscious process during which they are unaware of grammatical rules, that is no deliberator for to learn the language. They pick up language in informal situations. Language acquisition is implicit, and effortless as meaningful communication occurs in natural environment. While communicating the message in the text is given more important rather than the form. ... connected through feedback or when they hear the correct usages. Later on, they can cut it themselves when they become masters of linguistic generalizations. They will be confident in using the language in the real life situations. Language learning is explicit and conscious and takes place in a formal situation. The rules of the language are taught directly and learning is the product of formal instruction. It is learning about a language. Children have the conscious knowledge of the new language, and can talk about it. They can memorize the rules to solve a grammatical problem, but when it comes to the practical level of using the language it may not work. In the case of second language, all the third or the fourth language, this is what happens. Whatever that is learned meaningfully and naturally, is retained and will become acquired. Factors influencing acquisition. Language learning is a habit formation, and so, if one's acquired it becomes automatic. According to Paul Roberts: "When we learn the first language, we face the universe directly and learn to clothe it with speech. When we learn a second language, we tend to filter the universe through the language already known." By the time the child learns a second language, he is familiar with the system of mother tongue. He has to set aside the rules and sets of his mother tongue to invite the habits of a new language. Factors influencing acquisition can be broadly classified into three. They are: Learner factors. Infrastructural factors. Environmental factors. The learner factors. The learner factors influencing the acquisition of a language are mainly: Psychological, Physiological and Sociological. Factors like aptitude, attitude, interest, personality, multivision, age, sex, intelligence and learning styles come under this. Aptitude Aptitude refers to the potential for achievement. According to Carrol, foreign language aptitude consisted of four independent abilities. They are: Phonetic coding ability. The ability to identify and memorize new sounds. Grammatical sensitivity. The ability to demonstrate awareness of the syntactic patterning of sentences of a language. Root learning ability. The ability to learn associations between sounds and meaning. Inductive ability. The ability to identify similarities and differences in grammatical form and meaning. It is not necessary that successful language learners are strong in all the envolved components. Details can identify students requirements, and select appropriate strategies to accommodate their differences in aptitude. Personality The personality characteristics we can affect language acquisition are: Extroversion, introversion, self esteem, anxiety, etcetera. Personality may be a major factor in the acquisition of oral skills, not in reading and writing skills. Introverted or anxious learners make slower progress especially in communication skill. They try to get away from opportunities to speak, and express themselves. The extroverts will take risks. They will not worry about the mistakes, and make the advantage of opportunities to interact. Motivation This is a strongly favor intrinsic motivation. Intrinsically motivated learners, try for excellence, autonomy and self-actualization. A supportive and non-threatening learning atmosphere, naturally creates motivation. Through various activities, tasks and learning materials in the class, the teacher can increase students interest to learn language. A felt need, develops both intrinsic and extrinsic motivation. Learning styles Learning styles is an individuals natural habitud and preferred way of absorbing, processing and retaining new information and skills. ... 1995. Each individual is different, and process information in their own unique ways. Types of learning styles are: perceptual learning style, and cognitive learning style. Perceptual learning style include: visual, auditory and kinesthetic. Visual learners have a preference for seeing. Auditory learners best learn through listening. And tactile or kinesthetic learners preferred to learn through experience; That is: moving, touching and doing. Cognitive learning style, are the mental mechanisms that process the incoming information through different sources. Each individual learner has his own way of processing information or approaching a task. This is known as his cognitive style. According to Ellis: "Cognitive style is a term used to refer to a manner in which people perceive conceptualize, organize and recall information. While designing learning activities, the teacher has to consider the students with valid learning styles. Age Age is one of the characteristics which affect language acquisition. Learners who have a solid skill in their own language, are found to acquire a new language more easily. Motivated adults learn language more easily, but struggles to achieve correct pronunciation because of the problems of the transfer of the habits of native language. They feel it difficult to recognize the sounds of the ... in language. Young children show greater flexibility in identifying the sounds of the language, remembering them and reproducing them. They are less conscious about the mistakes made, and already to correct the mistakes without hesitation.