Language Acquisition Theories A

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    Modern research on child language acquisition dates back to the latter part

    of the 18th century ,when German philosopher Dietrich Tiedeman recorded

    his observation of the psychological and linguistic development of his young

    son. For a century and a half few ,if any were made in the study of child

    language.

    Not until the second half of the 20th century did researchers begin to

    analyze child language systematically and try to discover the nature of the

    psycholinguistic process that enables every human being to gain fluentcontrol of an exceedingly complex system of communication.

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    There are dozens of differences between first and second language

    acquisition; the most obvious difference ,in the case of adult second

    language learning, is the tremendous cognitive and affective contrast

    between adults and children. It is important to take an overview of first

    language acquisition in order to build an understanding of principles of

    second language learning.

    This power point provides an overview of various theoretical positions that

    can be related to first language acquisition.

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    To say that second language learning is a complex process is obviously

    trite. There are so many separate ,but interrelated factors that have

    influence on the acquisition of a second language that all have to be

    considered .

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    (Yorio,1976) proposed a taxonomy for second language acquisition that includes alist of influential factors that must be taken into consideration in a theory of SLA.

    1.A theory of SLA includes an understanding of what is language, what is

    learning, and for classroom context what is teaching.

    2.Knowledge of childrens learning of their first language provides essentialinsights to an understanding of SLA.

    3.A number of differences between adults and child learning and between first

    and second language acquisition must be accounted for.

    4.Second language learning is a part of the general principles of human

    learning and intelligence.

    5.There is a tremendous variation across learners in cognitive style and within

    a learner in strategy choice.

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    Was a Swiss linguist whose ideas laid a foundation for many significant

    developments in linguistics in the 20th century. He is widely considered one

    of the fathers of 20th-century linguistics.

    Saussure's theory holds that linguistic signs are composed of the arbitrary

    combination of sound patterns and concepts. The sound pattern or signifier

    is the material vehicle of the meaning, its concrete dimension; the concept

    or signified is its "abstract" side. While the signifier and the signified can beseparated for analytical purposes, in reality they are inseparable.

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    The behaviorist position claims that children come in to the world

    with a tabula rasa ,with no preconceived notions of the world or the

    language. Children are then shaped by the environment and slowly

    conditioned trough the reinforcement of different behaviors.

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    Behaviorists claimed that learners learn by undergoing training and

    practice through a series of stimulus and response chains and

    operant conditioning. The environment provides the stimulus and

    the learner provides the response. According to the Behaviorist

    theory, reinforcement motivates the formation of a language habit.

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    Verbal behavior , like any other behavior its controlled by its consequences.

    When consequences are rewarding, behavior is maintained and is

    increased in strength and perhaps frecuency.When consequences are

    punishing ,or when there is lack of reinforcement, the behavior is weakened

    and eventually extinguished

    Behaviorist

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    Effective language behavior is the production of correct

    responses to stimuli.

    If a linguistic response is reinforced, it becomes habitual

    or conditioned; otherwise is abandoned.

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    PavlovSkinner

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    The Cognitive Theory states that the conditions for learning

    language are the same conditions that are necessary for any kind of

    learning.

    They believed that human beings have the capacity for developing

    logical thinking. Acquiring knowledge is a cognitive process which

    involves automatic processing.

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    In the cognitive view FL learners are thought to creatively use their

    skills of cognition in order to figure out the L2 on their own. The learners

    notice a pattern and construct their own rules accordingly, then go back

    and change the rules if they are faulty. In this approach to L2

    acquisition, the learners benefit from their mistakes because they are

    playing an active role in the FLL process and learning first-hand how

    the language works.

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    What children learn about language is determined by what they already

    know about the world.

    Cognitive development is at the center of the human organism --

    language is dependent upon and springs from cognitive development;

    Cognitive or mental structure: scheme.

    Meaning is constructed based on previous background knowledge

    structures.

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    The constructivist position states that children come into this world

    with a specific innate knowledge ,predisposition, and biological

    timetables, but that children learn to function in a language chiefly

    trough interaction and discourse.

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    Language is based on the relationship of cognitive development

    and the construction of meaning in the environment.

    Language is seen as one manifestation of the cognitive and

    affective ability to deal with the world, with others, and itself.

    The main influences are:

    The rules of grammar (Abstract part of language development)

    The meaning constructed from social interaction.( Functional part of

    language development)

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    Bloom

    Vygotsky

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    Perhaps the most influential figure of the 20th Century Linguistics.

    His contributions have been twofold :

    Generative Linguistics

    Universal Grammar (UG)

    Universal Grammar was proposed by Chomsky, to explain how

    children acquire language, which is a complex task, at such a early

    age with such speed and efficiency.

    Is an innate unconscious ability present at birth ,a knowledge of

    grammar. With U.G. set in place at birth ,the child is able to take on whichever

    language it is exposed to ,as all languages have common elements

    and are inter-translatable.

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    Claimed the existence of innate properties of language to explain

    the childs mastery of a native language in a short time despite the

    highly abstract nature of the rules of language.

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    Children construct meaning trough social contact.

    Childrens learning occurs within a socio-cultural level and is

    internalized to the cognitive level.

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    The term Nativist is derived from the assertion that language

    acquisition is innately determined, that we are born with the

    genetic capacity that predisposes us to a systematic

    perception of language around us ,resulting in the

    construction of an internalized system of language.

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    Nativists claimed that language learning is biologically

    determined. Each person is born with an innate ability to learn

    language.

    The basic innate language learning capacities are referred to as the

    Language Acquisition Device (LAD). This view asserts that the

    environment only serves to trigger the Language Acquisition Device

    (LAD) which determines what children acquire. Children acquire

    much of their language ability before coming to school, thus

    supporting the innate structures argument.

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    Social integrationists believe that human language emerged from

    the social role that language plays in human interactions. They

    further believed that the environment plays a key role and that

    adults in the childs linguistic environment are instrumental in

    language acquisition. Language learners need many opportunities

    for using the target language in order to develop competence.

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    Social interaction is the key to language processing. Input from the

    social interactions provides a model for negotiation opportunities.

    Vygotsky (1978) believed that learners bring two levels of development

    to the learning: an actual developmental level and a potential

    developmental level. These two levels are referred to as the Zone of

    Proximal Development. Learners can move from actual development to

    proximal development through social interactions with others.

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    Language is used for communication, therefore it has a social function.

    Social interaction, through language, is a pre-requisite to cognitive

    development; every child reaches his or her potential development in part,

    through social interaction.

    Language and thought are distinct and develop independently; when the

    two systems fuse with the development of inner speech, logical reasoning

    develops.

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    Lev VytgoskyZone of ProximalDevelopment

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    Behavioristic Cognitive Constructivist

    Classical Operant

    (Pavlov) Skinner , Watson (Ausubel) RogersPauloFreire,Jean

    Piaget ,Lev Vitgosky

    RespondentConditioning

    Elicited Response

    S ---- R

    Note:

    S = Stimulus

    R = ResponseReward

    Governed byconsequences

    Emitted Response

    R --------S

    ( Reward)

    No Punishment

    Programmed

    Instruction

    Meaningful=Powerful

    Rote=Weak

    Subsumption

    Association

    Systematic Forgetting

    Cognitive Prunning

    FullyFunctioning

    Person

    Learn how to

    learn

    Community of

    learners

    Empowerment

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    BehavioristTabula Rasa

    Stimuli=LinguisticResponse

    Conditioning

    Reinforcement

    MediationTheory

    MediatingResponse

    Nativist

    InnatePredisposition

    Systematic, rule-governed

    acquisition

    Creativeconstruction

    Paralleldistributed

    processing

    Functional

    ConstructivistSocial Interaction

    Cognition andLanguage

    Functions ofLanguage

    Discourse

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    Innatist Cognitive Constructivist

    Krashen

    Subconscious acquisition

    superiorto learning and

    monitoring

    Comprehensible Imput

    Low affective filter

    Natural order of acquisition

    Mc Laughlin /Bialystok

    Controlled,automaticprocessing

    Focal/peripheral attention

    Restructuring

    Implicit vs. Explicit

    Unanalyzed vs. analyzed

    knowledge

    Form-focused instruction

    Long

    Interaction hypothesis

    Intake trough Social Interaction

    Output Hypothesis

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    Stephen Krashen is a professor at the University of Southern California.

    Dr. Krashen has published more than 350 papers and books, contributing to

    the fields of second language acquisition, bilingual education, and reading.

    He is credited with introducing various influential concepts and terms in the

    study of second language acquisition, including the acquisition-learning

    hypothesis, the input hypothesis, the monitor hypothesis, the affective filter

    hypothesis.

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    Stephen Krashen introduced the acquisition-learning hypothesis,

    which makes a distinction between conscious language learning

    and subconscious language acquisition. Krashen argues that only

    subconscious acquisition can lead to fluency.

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    Krashen Input Hypothesis

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    Learners gain implicit knowledge by processing target-language input

    without consciously giving attention to acquiring the forms and structures of

    the language. On the other hand, learners get explicit knowledge of a

    language when they process language input with the conscious intention of

    discovering the structural rules of the language. Ellis has found empirical

    confirmation for the distinct constructs of implicit and explicit language

    knowledge

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    States Krashen's view that a number of 'affective variables' play a

    facilitative, but non-causal, role in second language acquisition.

    These variables include: motivation, self-confidence and anxiety.

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    Explains the relationship between acquisition and learning. The monitoring

    function is the practical result of the learned grammar. The following

    conditions must be met :

    The acquirer/learner must know the rule: This is a very difficult condition to

    meet because it means that the speaker must have had explicit instruction.

    The acquirer must be focused on correctness: He or she must be thinking

    about form, and it is difficult to focus on meaning and form at the same time.

    The Monitor Hypothesis

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    Mc Laughlin

    AttentionProcessing Model

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    Is Based on a Cognitive Theory and states that :

    Second language learning is a mental process

    Assumes a hierarchy of complexity of cognitive skills

    Structured practice leads to automatization and integration

    of linguistic patterns

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    Second language learning is a skill.

    Second language learning requires automatization of

    component sub-skills.

    Humans have a limited capacity to manage controlled

    processes.

    Second language processing skills become more

    efficient via automatization.

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    Attention to Formal Properties

    of Languages

    Controlled: new skill capacity

    limited

    Automatic: well-trained

    practicedskill capacity is

    relatively unlimited

    Focal

    Intentional Attention

    (Cell A)

    Grammatical explanation of a

    specific point

    Word definition

    Copy a written model

    The first states of

    memorizing a dialog

    Prefabricated patterns

    Various discrete-point

    exercises

    (Cell B)

    keeping an eye out for

    something

    Advanced L2 learner focuses

    on modals, clause formation,

    etc.

    Monitoring oneself while

    talking or writing

    Scanning

    Editing, peer-editing

    Peripheral/

    Incidental Attention

    (Cell C)

    Simple greetings

    The later stages of

    memorizing a dialog

    TPR/Natural Approach

    New L2 learner successfully

    completes a brief conversation

    (Cell D)

    Open-ended group work

    Rapid reading, skimming

    Free writes

    Normal conversational

    exchanges of some length

    From Brown 1994: 285

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    Implicit and Explicit Models

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    In the explicit category are the facts that a person knows about language

    and the ability to articulate those facts in some way. Implicit knowledge is

    information that is automatically and spontaneously used in language tasks.

    Ellen Bialystok equated implicit and explicit with the synonymous terms

    unanalyzed and analyzed knowledge. These same models feature a

    distinction between automatic and non-automatic processing. Knowledge

    that can be retrieved easily and quickly is automatic. Knowledge that takes

    time and effort to retrieve is non-automatic.

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    Long's interaction hypothesis- proposes that language

    acquisition is strongly facilitated by the use of the target language in

    interaction. The Interaction Hypothesis claims that comprehensible

    input is important for language learning. In addition, it claims that the

    effectiveness of comprehensible input is greatly increased when

    learners have to negotiate for meaning.

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    States that the development of language proficiency is promoted by face-

    to-face interaction and communication. There are two forms of the

    Interaction Hypothesis: the "strong" form and the "weak" form. The "strong"

    form is the position that the interaction itself contributes to language

    development. The "weak" form is the position that interaction is simply the

    way that learners find learning opportunities, whether or not they make

    productive use of them.

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    Brown, D. (2007). Teaching by principles: An interactive approach to

    language pedagogy

    Nagle, Stephen J., & Sanders, Sara L. (1986). Comprehension Theory and

    Second Language Pedagogy. TESOL Quarterly, 20(1), 9-26.

    Brown, H. (1994). Principles of language learning and teaching / H. Douglas

    Brown. Englewood Cliffs, NJ : Prentice Hall Regents, c1994.

    Daz-Rico, L. (2008). Strategies for teaching English learners, New York,

    Pearson