Language Acquisition Theories A
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Transcript of 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