The purpose of this page is to provide the reader
with a basic explanation of key CLAD I concepts. ( Written in plain
language to help you pass the CLAD I exam ) In no way is it intended
to be a complete or in-depth picture of what the authors and researchers
have presented in their writings. My only hope is that these brief
summaries will help clarify some of the key concepts in order to enhance
your understanding.
Steve Concidine
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The Dimensions of Language Proficiency
Cummins identifies two major dimensions of language proficiency.
They are:
Communicative language skills (BICS) and
Academic language skills (CALP)
Cummins' view is that all language tasks fall into two categories.
They are:
Context-embedded tasks which are either cognitively undemanding
or cognitively demanding.
and
Context-reduced tasks which are either cognitively undemanding
or cognitively demanding.
Cummins comes to several conclusions.
One is that all normal humans acquire language proficiency needed
to complete context embedded, cognitively undemanding tasks.
Another conclusion is that among monolinguals the ability to complete
cognitively demanding tasks in context-reduced situations varies
among the population. It is based on the ability of the person and
the amount of schooling.
Here's the summary in a nutshell:
Language proficiency is the ability to use language for both academic
purposes and basic communicative tasks. (In order to be a proficient
bilingual one needs to do both in both languages.)
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The Natural Order Hypothesis
Basically, the Natural Order Hypothesis says that Grammar is acquired
in a predictable manner in both L1 and in L2.
You don't teach to this order (in fact you really can't teach
to this order), meaning that you don't wait till a person is ready
for a particular grammatical structure before you can use it with
them. (Then what do you do? Well, you provide the learner with
a rich language background. Also, you concentrate on getting the message
across.)
What should the language learner do? He/she should focus on getting
messages. And the learners should do a lot of listening and begin
talking and let the grammar come to them slowly and unforced.
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The Monitor Hypothesis
Krashen says that we all have a monitor which is like an editor or
a little voice in our head that edits what we say. I works after you
have acquired a language. In order for the monitor to be working you
need to have 3 conditions present.
1. Time - You have to have enough time. Conversations usually do
not give you enough time to recall the rules.
2. Focus on Form - You can't really focus on the form (rules) during
a conversation because you are too busy concentrating on the message.
(It's happened to me a million times when speaking Spanish. I'll
be listening to someone and the second that I think about vocabulary
or rules etc. I'm lost!)
3. You have to know the rules. This is very difficult. Even native
speakers don't know the rules but they still can communicate effectively.
(The monitor is that little voice in your head that tells you
that it doesn't sound right to say something like "The boy talk
to the girl." You would probably stop and correct and then go on.)
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The Comprehensible Input Hypothesis
Communication is the main goal. Caretaker Speech should be used.
(Speech that is modified to be helpful to the learner.) You should:
Use a lot of visual clues and deal with familiar topics.
You should give the learner a point of reference.
The language used should be somewhat tuned to the child's level.
You should provide plenty of context clues.
You should deal with the "here and now". Conversation should reflect
the child's interest.
(" I +1") Take comprehensible input and add a little something
new. (You are attempting to take the child from where they are
now, in a comfortable place and you are going to add something new
which with proper support the child will get. It is a concept which
is very similar to the concept of teaching to the "zone of proximal
development".)
You should also use key words, phrases and gestures to help the
learner make conversations comoprehensible.
Krashen says that you can learn a 2nd language much faster if the
input you receive is understandable. The use of objects, pictures
etc. helps allow the learner to have something to relate to. Talking
slowly helps a lot too.
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The Affective Filter Hypothesis
The affective filter can really mess you up. It gets in your way
and causes you to panic. It's the reason that you begin to stammer,
stutter and sweat when you pseak in front of a group. It is that voice
of doubt that always starts to talk to you in stressful situations.
We are always looking for ways to lower it or eliminate it altogether.
the of the Affective filter as a BAD THING to be lowered.
There are 3 variables which can affect performance when acquiring
the ability to understand and speak a 2nd language. They are:
Self-confidence
Motivation
Level of anxiety (This is really important. If your anxiety
level is high, then your acquisition will be very
low.)
Dr. Krashen speaks of the "Rule of forgetting". This is when the
learner forgets that they are speaking another language. At this point
the affective filter is very low.
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The Contextual Interaction Theory
The Contextual Interaction Theory rests on five empirically supported
principles that describe how student input factors interact with instructional
treatment to contribute to the desired goals of English language proficiency,
academic achievement and psychosocial adjustment.
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Principle One - The Linguistic Threshold
The Linguistic Threshold
Older studies showed negative effects of bilingualism on intelligence
and academic success. Recent studies have shown the opposite. Positive
effects of bilingualism on intelligence and academic success are well
proven.
The conflict between these differing results is explained by the
term "limited bilingualism" (less than native like)
"Subtractive bilingualism" is a term for the process by which one
becomes a limited bilingual. With subtractive bilingualism, little
effort is made to maintain the first language while learning English.
When the learner has native-like proficiency in both languages, positive
results happen. Learners who are proficient bilinguals have been found
to have superior cognitive development when compared to monolinguals.
Cummins describes 3 different types of bilingualism. They are:
Proficient bilingualism - High levels of proficiency in both languages
with very positive effects. (higher threshold of bilingual competence)
1. Has positive cognitive effects
2. Has positive academic effects
3. May result from 2-way program, maintenance program, or education
in home or in country of origin.
Partial bilingualism - Native-like levels of proficiency in one
of the languages with neither positive or negative effects. (higher
threshold of bilingual competence)
Limited bilingualism - Low levels of proficiency in both languages
with negative effects (lower threshold level of bilingual competence)
1. Has negative cognitive effects
2. Has negative academic effects
3. May result from inadequate, inconsistent, and/or inappropriate
instructional program.
Summary of Principle One:
For bilingual students the degree to which proficiencies in
both L1 and L2 are developed is positively associated with academic
achievement.
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Principle Two - The Dimensions of Language Proficiency
Cummins identifies two major dimensions of language proficiency.
they are Communicative language skills and Academic
language skills.
Cummins view is that all language tasks fall into two categories:
Some tasks are what he calls context-embedded tasks which
can be either cognitively demanding or cognitively undemanding.
Other tasks are called context reduced tasks. they also can
be either cognitively demanding or cognitively undemanding.
Cummins reaches certain conclusions. One is that all normal humans
acquire language proficiency needed to complete context embedded cognitively
undemanding tasks.
Another conclusion is that among monolinguals the ability to complete
cognitively demanding tasks in context-reduced situations varies among
the population. It is based on the ability of the person and the amount
of schooling.
Summary of Principle Two:
Language proficiency is the ability to use language for both
academic purposes and basic communicative tasks. (In order to be
a proficient bilingual one needs to do both in both languages.)
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Principle Three - The Common Underlying Proficiency
Some hold the view that proficiencies in each language are developed
independently or separately in the brain. (SUP or Separate Underlying
Proficiency). There is little evidence to support this concept.
A more accepted view is that proficiency in managing linguistic tasks
is seen as interdependent across languages. (CUP or Common Underlying
Proficiency) The ability to master cognitively demanding tasks in
one language paves the way for the bilingual learner to perform similar
tasks in the other language. There is ample evidence to support this
view.
Evidence shows that in dealing with cognitively demanding tasks,
older students do better than younger studetns if they have developed
academic language skills in their first language.
Summary of Principle Three
For language minority students the development of the primary
language skills necessary to complete academic tasks forms the basis
for similar proficiency in English
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Principle Four - Second Language Acquisition
Krashen states that there are 2 ways for an individual to develp
communicative competency in a second language.
The first is by learning. One learns the rules, grammar and
sequential presentation.
The other way is by acquisition. Acquisition is subconscious.
You are unable to describe the rules. Your focus is on communication
and messages. The focus is on comprehending messages.
Which approach is best? A communicative-based approach based on contemporary
theory in second language acquisiton is the most efficient and effective.
Acquiring a second language is dependent upon input that the brain
can process.
Second language learners need sufficient understandable linguistic
input - "Comprehensible Input"
Comprehensible Input must:
contain language structures that are already known to the learner.
(Use of context clues, gestures, facial expressions, intonation,
repetition, clear articulation etc..
have meaningful content - interesting material that encourages
the student to persist in negotiating the meaning.
focus on meaningful messages, communicated in an understandable
manner, that will ensure that grammatical structures are included.
The "Affective Filter" can impede or facilitate the studetn's production
of language.
Anxiety impedes the student's abilities.
Low self esteem and self confidence also impede student success.
Summary of Principle Four
Acquisition of basic communicative competency in a second language
is a function of comprehensible second language input and a supportive
affective environment.
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Principle Five - Student Status
Different treatment of students gets different results from students.
People's expectations of themselves and others are based in part on
status characteristics such as age, language, achievement, race, and
so on.
Research has shown that educational input factors and instructional
treatments which explicitly promote positive interaction between minority
and majority students result in positive outcomes such as academic
achievement.
Summary of Principle Five
The perceived status of students affects the interactions between
teachers and studetns and among the students themselves. In turn,
student outcomes are affected.
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Behaviorist Theory - (This theory is hard to defend)
Behaviorists believe that children hear and imitate. (This theory
does not account for child's utterances that haven't been heard before.It
also doesn't take into account for a child's inability to imitate
structures for which they don't have linguistic competence.)
Behaviorists believe that children begin to produce correct utterances
because they receive positive reinforcement or negative
reinforcement for incorrect utterances. (Most parents don't reinforce
grammar they respond to content.)
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Nativist Theory - (This theory is more defensible than Behaviorist
Theory)
Nativists believe that we are born with an innate Language Acquisition
Device.
We are born with all of the necessary neural and biological prerequisites
for learning and using language.
We construct rules and apply them depending on our level of linguistic
development.
Most contemporary experts agree that:
1. Children don't learn language by storing all words and combinations
of words in a "Mental Dictionary".
2. Children do learn to understand and create sentences that they
never have heard before.
3. Children must some way or other learn the rules.
4. Children pick up the rules without direct instruction
Children acquire Communicative Competence
1. The ability to use language in a social context.
2. Being able to use language that is socially appropriate
3. Use the language fitting the social situation. (Make new friends,
negotiate etc.)
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