INTRODUCTION: DESCRIBING AND EXPLAINING
L2 ACQUISITION
1. What is SLA?
L2 acquisition
is the way in which people learn a language other than their mother tongue,
inside or outside the classroom and ‘Second Language Acquisition’ (SLA) is the
study of this.
2. What are the goals of SLA?
The goal of SLA are describing of L2 acquisition and
explaining the internal and external factors that account for why learners
acquire an L2 in the way they do. The external factors are environment in which
learning takes place and the input that the learners receive. Meanwhile, the
internal factors are learners’ cognitive, learners’ background knowledge (L1), knowledge
of the world, learners’ communicative strategies, learners’ knowledge of
language, and learners’ language aptitude.
3. Two case studies
A case study is a detailed study of a learner’s
acquisition of an L2. In this chapter the writer took two case studies to
describe and explain the process of L2 acquisition happened with adult learners
learning English in the L2 native country and two children learning English in
a classroom. The first case study is about Wes, a thirty-three years old artist
and a native speakers of Japanese who learnt English because of the demand of
his work. Richard Schmidt, the researcher, had investigated him for over a
three year period. The focus of his research was to find out how Wes’s grammar
knowledge of English grammar developed over the three years. The finding
revealed that Wes could already use some of the features with native-like accuracy
at the beginning of his study. However, he had not really acquired these. See
the following Wes’s sentence while he used progressive –ing when it was not required:
“So yesterday I didn’t painting.
Another mistake made by Wes was he continued to omit
–s from plural nouns, rarely, put –s on the third singular of verbs, and never
used the regular past tense. Although he did not learn much grammar, he did
developed in other ways. He was adept at identifying fixed phrases such as
“What’s new?,” “Whaddaya want?”
The next case was the study of R and J who learnt
English in a classroom context. R was an eleven-year-old boy from Pakistan and
J was a ten year-old Portuguese boy. They had to learn English because they
need it to prepare themselves for transfer to local secondary school. The focus
of the study was how both learners acquired the ability to perform requests.
The findings revealed that both learners are successful to perform simple
requests even when they knew very little English. Their ability to perform
developed over the period of study. Next point is many of their requests seemed
formulaic in nature. The latest point is they progressively acquire the ability
to perform request in the same way although they have different native
languages. However, their ability also was limited in a number of respects
compared to the way native speakers who usually perform request in more
indirect requests.
These two case study, then, raise a number of
methodological issues relating to how L2 acquisition should be studied, issues
relating to the description of learners language, and issues relating to some
of the problems faced by SLA researchers in attempting to explain L2 acquisition.
4. Methodological issues
There are several things need to ponder related to methodological issues
in SLA based on those case studies findings:
§ Language
is a complex phenomenon so that researchers should focus on some specific
aspect rather than on the whole of it.
§ Researchers
should understand first what it means by acquiring a feature of target
language.
§ Researchers
should measure whether acquisition has taken place concerns learners’ overuse
of linguistic form.
5. Issues in the description of learner
language
Based on both studies, there are some related issues respecting the description
of learner language:
§ Learners
make errors of different kinds.
§ Learners
acquire a large number of language formulaic chunks, which they use to perform
communicative functions that are important to them and which contribute to the
fluency of their unplanned speech.
§ Learners
acquire the L2 systematically and follow developmental routes.
6. Issues in the explanation of L2 acquisition
Based on studies, there are some issues can be accounted related to the
explanation of L2 acquisition:
§ L2
acquisition involves different kinds of learning.
§ The
systematic nature of L2 acquisition emerges many possible explanations.
THEORETICAL APPROACHES
TO EXPLAINING SLA
1. Learning factors and learning conditions
In many ways, theories underlying
SLA are closely related to those discussed for first language acquisition.
Those theories can be divided into three categories:
1.
Theories which emphasize on the essential of
environment in shaping language learning.
2.
Theories which focus on the importance of
learners’ innate characteristics.
3.
Theories which integrate learners’
characteristics and environmental factors.
However, there are also some different things between acquiring
first language (L1) and second language (L2) in terms of both learner
characteristics and conditions for learning. In term of learners’
characteristics we have known that they already have acquired at least one
language. It can give benefits for them since they know how languages work. On
the contrary, it can be drawbacks because it leads learners to make error as a
result of incorrect guesses about how the second language works. Furthermore,
related to age, we can find differences between young and adult learners. See
the following table:
Learners
Characteristics
|
Child
|
Adult
|
Explanation
|
Knowledge of another
language
|
+
|
+
|
It can be both help and cause error in learning L2
|
Cognitive maturity
|
-
|
+
|
It helps adult learner to understand L2 more than
children because they have not reach
these level of areas in their ages.
|
Metalinguistic
awereness
|
-
|
+
|
|
Knowledge of the world
|
-
|
+
|
|
Nervousness about
speaking
|
-
|
+
|
Adult learners may find more stressful to use L2 than
child.
|
Next, in terms of learning conditions there are also
several factors that need to ponder. See the following table:
Learning Conditions
|
Child
|
Adult
|
Explanation
|
Freedom to be silent
|
+
|
-
|
Young learners are usually allowed to be silent until
they are ready to speak. Older learners are often forced to speak.
|
Ample time
|
+
|
-
|
Young learners are usually exposed to the L2 many hours every
day. While older learners are more likely to receive only limited exposure to
the L2.
|
Corrective feedback:
Grammar and pronunciations
|
-
|
-
|
It is tolerable and it seems impolite to interrupted and
corrected someone who was trying to talk with them.
|
Corrective feedback: word choice
|
+
|
+
|
People will react to an error if they cannot understand
what the speaker is tying to say.
|
Modified input
|
+
|
+
|
People who interact regularly with language learners,
regardless the age, seem to modified their speech to make them understand.
|
2. Behaviorism
Behaviourists account learning in
term of imitatation, practice, reinforcement (feedback of success), and habit
formation. Learners receive linguistic input from speakers in their environment
and they form “associations” between words and objects or events. These
associations become stronger as experiences repeated.
Behaviourism frequently linked to
the Contrastive Analysis Hypothesis (CAH) that predicts where there are
similarities between the first language and the target language, the learners
will acquire target language structure easily; where they are differences, the
learners will have difficulty.
3. Innatism (Universal Grammar)
According to Chomsky’s theory, innate knowledge of the Universal Grammar
(UG) permits all children to acquire the language of their environment, during
the critical period in their development. Those who believe that UG has an
important explanatory role in SLA have different opinion. Some argue UG must be
available to second language learners as well as to first language learners and
there is no different nature and availability of UG for both learners.
4. Krashen’s monitor model
Krashen’s theory of SLA is one of
innatist theory which has great influence on the L2 language teaching practice.
§
The
acquisition-learning hypothesis
There are two ways for adult L2 learners to develop knowledge of a L2:
acquisition and learning. We acquire as we are exposed to samples of the L2
which we understand. Meanwhile, we learn via a process of study and attention
to form and rule learning.
§
The
monitor hypothesis
We have learned system which acts only as an editor or monitor, making
minor changes and polishing what the acquired system has produced.
§
The
natural order hypothesis
L2 learners acquire the features of the target language in predictable
sequences.
§
The input
hypothesis
Both comprehension and acquisition occurs when the input contains forms
and structures just beyond the learners’ current level in the language (i+1).
§
The
effective filter hypothesis
The affective filter is an imaginary barrier which prevents learners from
acquiring language from the available input. It refers to such things as
motives, needs, attitudes, and emotional states. The higher the filter is, the
lower the rate of acquisition and vise versa.
5. Recent psychological theories
a. Information processing
Cognitive psychologists develop their theory based on
information model of human learning and performance. They believe that second
language acquisition develop gradually. It is a building up knowledge system
that can eventually be called on automatically for speaking and understanding.
Human has a limit of attention to the amount of information at one time.
Through experience and practice learners gradually become able to use certain
part of their knowledge so quickly and automatically. They argue that practice
is not seen as something mechanical but it involves effort on the part of
learner.
They have different view of learning and acquisition as
proposed by Krashen. According to Schmidit, everything we come to know about
the language was first noticed consciously. Learning and acquisition is the
same things. They also theorize that there are changes in skill and knowledge
which are due to restructuring. It is a process in which knowledge we already
have interact with our existing system. The transformation has possibly two
side effects. It make the learners having speed progress or producing error.
b. Connectionism
Connectionists give greater emphasize on the environment
than to any innate knowledge in the learners. They think that what is innate is
the ability to learn, not any specifically linguistics structure.
Learners gradually develop their language ability through
exposure to thousands of examples of the linguistics features as the input to
learn. According to them, the input is the principle source of linguistics
knowledge not only as a trigger as said by innatists. After hearing language features
in specific situational or linguistic contexts over and over again, learners
develop stronger and stronger mental or neurological connections between these
elements.
6. The Interactionist position
Interactionists argue that much second language acquisition
takes place through conversational interaction. According to Micheal Long, what
the learners of L2 need is an opportunity to interact with other speakers. Long
list the relationship between modified interaction and the learners language
acquisition as follows:
·
Interactional modification makes input
comprehensible
·
Comprehensible input promotes acquisition.
Therefore,
·
Interactional modification promotes acquisition
Modified interaction does not
always in form of linguistics simplification. It can be elaboration, slower
speech rate, gesture, or the provision of additional context clues. Some
examples of these conversational modifications are comprehension checks, clarification
requests, and self-repetition or paraphrase.
Another perspective is proposed
by Vygotsky. Based on his sociocultural
theory of human mental processing, language development is a result of social
interaction between individuals. Second language learners advance to higher
levels of linguistic knowledge when they collaborate or interact with more
knowledgeable interlocutor than they are, for example a teacher. He believes
that learners has zone of proximal development (ZPD), that is the level of performance
which a learner is capable of when there is support from interaction with a
more advanced interlocutor.
References
Ellis, Rod.
1997. Second Language Acquisition.
New York: Oxford University Press
Lightbown,
Patsy M and Spada, Nina. 2001. How Language
are Learned. New York: Oxford University Press.
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