What a Case Study Reveals:
Facing the New Challenge and Learning the
Basics in Second Language Acquisition
Nan Li
Yvonne Mitchell
Courtney Howard
Abstract: The fastest growing segment of the school population in the United States is currently the English Language
Learners (ELLs). From 1995 to 2005, the general school population growth in the United States was only 12 percent,
but the population growth among the ELLs was 105 percent (NCES, 2009). Other data reveals that 5.1 million or 10.5
percent of the U.S. school population are the ELL students (NCLRC, 2008). Although most ELLs are coming from
non-European countries, the teachers in the United States are mainly from Caucasian backgrounds. This creates a
mismatch between the backgrounds of the students and that of the teachers. As the ELL school population is growing
in size and variety, both the teachers and the students are confronted with the new challenge of providing quality
teaching and learning and engaging these students to fully participate in academics so that they can graduate and
become productive members of society. In order to meet their learning needs, it is important that teachers acquire
the basics in applying second language acquisition theories to be able to understand this learning process and seek
improved teaching practices. This case-study provided an epitome of the learning experiences of the ELL students
who were experiencing the transition from a non-English to an English-only school environment. When analyzing the
case scenario, we combine the discussion with L2 acquisition theories and provide suggestions for teachers.
About Authors: Dr. Nan Li is Associate Professor at Claflin University. She is also Project Director of the National
Professional Development program, a federally-funded grant project that collaborates with four school districts to
improve English for ELLs. Ms. Yvonne Mitchell is ESOL Program Coordinator of Orangeburg Consolidated School
District Five in Orangeburg, South Carolina. She is a National Board Certified teacher in English as a New Language.
Dr. Courtney Howard is Interim Dean of the School of Education at Claflin University. She also serves as Director of
Curriculum, Instruction, and Assessment for the School of Education.
Key Words: English Language Learner, ELL, L2 acquisition, learning environment, teaching practices
The New Challenge
School demographics in the United States have become
more diverse. This diversity is added by the increase
of the English Language Learners (ELLs) in schools in
recent decades. Recently, the ELL population has become
the fastest growing segment of the school population in
the United States. Data reveals that, from 1995 to 2005,
the general school population growth was 12 percent;
yet, the increase of the ELL school population was 105
percent (NCES, 2009). Other data also reveals that 5.1
million or 10.5 percent of the U.S. school population are
the ELL students (NCLRC, 2008). More importantly,
these ELLs are coming from non-European counties.
Yet, the teacher force in the United States is comprised
of the teachers who are mainly from Euro-American
National Teacher Education Journal • Volume 4, Number 1
backgrounds. This creates a mismatch between the
backgrounds of the students and that of the teachers
(Jalongo, 2007; Zelasko & Antunez, 2000). As the ELL
school population is growing in size and variety, both
the teachers and students are confronted with the new
challenge of providing quality teaching and learning and
of engaging these students’ participation so that they can
graduate and be productive members of society.
Fillmore (2000) argues that, before ELLs are able to
function adequately in our schools, they must have English
language skills to handle the required academic tasks and
be able to interact in a variety of social situations taking
place in the classrooms. The following scenario in the
Winter 2011
25
case-study provides an epitome of teaching and learning
related to the ELL students who were experiencing the
transition from a non-English to an English-only school
environment. When analyzing the case, we combine
the discussion with second language (L2) acquisition
theories and provide suggestions for teachers. Our
purpose is to answer these two fundamental questions:
Why do teachers need the basics of L2 acquisition
knowledge to optimize the classroom environment and
to teach effectively in classrooms where there are ELLs?
How can teachers optimize classroom environments to
assist ELLs in their learning process? It is our belief
that the pedagogy traditionally used in classrooms is
inadequate for instructing ELLs and that teachers need
to know the basics of L2 acquisition theories in order
to teach effectively. This seemingly natural process is
much more complex and is imbued with many factors
beyond simply acquiring English (Olsen, 2000).
Kelly’s Case Study Scenario
Within a heterogeneous classroom where there are ELLs,
teachers’ efforts may be counterproductive without
basic knowledge in L2. The following scenario in a
case study supports this statement and illustrates how
a teacher with inadequate knowledge in L2 acquisition
appears to be ineffective when interacting with an
ELL in the classroom. The setting for the case-study
observations was a fourth grade classroom in a rural
school. On this particular scene, the teacher, a primarily
English-speaking female, was teaching a social studies
class. “Kelly” (pseudonym) was a ten-years-old ELL
participant. Kelly came from China and had been in her
new school for four months when the study took place.
At the beginning of this scenario, Kelly was sitting in
the classroom and appeared much quieter than her peers.
This was because she could not speak English to carry
on a conversation with other English speakers, who were
casually talking while waiting for the class to start.
The teacher began this social studies lesson with a quiz.
Students were instructed that after they finished the quiz,
they should be quiet and could read books of their own
choice. The quiz began and the classroom became quiet.
After a few minutes, some students began to turn in their
quizzes to the teacher and started reading. Looking
around the classroom, Kelly handed in her quiz. Taking
a book from the drawer, she began to read as well. Yet,
her book was in Chinese. It was sent by a relative in
China and was the story of a successful Chinese girl
who was admitted as an exceptional student to Harvard
University due to her outstanding performance. Kelly
had been reading the same book at home. From an
earlier interview with her, the researcher learned that
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Kelly had every intention to follow this brilliant girl as
her role model. This choice of a role model was despite
her inability to speak or read English, all of which she
hid with her quiet demeanor.
After the quiz, the teacher divided the class into two
teams to review the knowledge on Constitutional
Amendments, a topic from the previous lesson. The two
groups sat in two rows facing each other. Kelly moved
quietly with her team and sat at the end of the row. Each
team member must take turns to answer a question and,
if the answer was correct, he or she could gain a point for
the team and receive the chance to throw the basketball
once. The teacher used her textbook as a reference
and asked each team a question. Kelly was asked four
questions. She answered three questions incorrectly and,
with the whispered help of a teammate, answered one
correctly. She looked embarrassed each time she gave
an incorrect response. These questions, the researcher
observed, were difficult even for the English-speaking
students and they were certainly incomprehensible for a
student with limited English proficiency. One question,
for example, contained words such as “illegal seizure”
and “freedom of search.” Surprisingly, the question
asked to the boy who sat next to Kelly and who provided
her with that whispered help, was much easier, “What’s
the name of the highest court in the U.S.?” The answer
was given instantly, “The Supreme Court.”
After this class, the researcher talked with the teacher
about Kelly’s learning. The teacher explained that Kelly
was making progress, but needed to be challenged. She
explained that Kelly should neither feel embarrassed
when she did not know certain words nor feel inferior or
depend on her peers. When asked if the questions asked
to Kelly were difficult in terms of language for her to
understand, the teacher felt that she was fair to Kelly and
that it was important to challenge Kelly with the same
level of learning content and the instructional method
used with the other children in the class. In doing so,
the teacher felt she was demonstrating equality in the
teaching, using the teacher’s words, “She (Kelly) must
feel equal to others.”
During the research period, the researcher also visited
Kelly at home frequently. In one interview with her,
when asked how she felt about her new school, Kelly
responded that she liked her new American school
because the school rules here were not very strict. Since
the conversation was in Chinese, the researcher asked
Kelly what the English word was for “strict”. She had
no concept of the English word for strict although she
understood its meaning in Chinese. She likely would
have understood the concepts of “illegal seizure” and
National Teacher Education Journal • Volume 4, Number 1
“freedom of search” if those words had been explained to
her by the teacher through examples or by using pictures
in that social studies class. The teacher could have also
allowed her to use an electronic dictionary that would
have translated these terms from English to Chinese.
As mentioned, by the time the study began, Kelly had
been in the U.S. school for only four months. Her
English speaking skill was improving and her time in the
ESOL (English Speaker of Other Language) classroom
was reduced from one hour everyday to half an hour
on three days a week. As social interaction with her
peers increased, Kelly was learning more English and
the nuances that often accompany conversations in any
language. Yet, she was still in the early stage of learning
English and needed time to understand and to digest
what had been said to her by other peers and the teacher.
Theoretically, this is called a silent period.
Discussions from Kelly’s Case
From Kelly’s case, it is evident that teachers need to
know the basics of L2 theories to interact effectively
with ELLs in the classrooms and to provide them
opportunities for success. Teachers also need to recognize
differences in teaching primary speakers of English and
in teaching ELLs and be skillful in modifying instruction
or providing appropriate modification to meet the needs
of all students in the classrooms. The ability to adapt
instruction to meet the needs of the ELL students
is especially important. When discussing meeting
children’s literacy needs, Spiegel (1999) points out
that best practices can be achieved only when teachers
acknowledge the differences in children and effectively
adapt instruction, making use of children’s strengths
and needs. Hence, fairness from a teacher is treating
each child differently by creating the kind of learning
environment where each child has the opportunity to
accomplish the expected goals and objectives instead of
focusing on the same activities when teaching without
regard for their linguistic or academic differences.
The environment where learning takes place is also an
important facet of instruction to be designed carefully.
Cohen and Ball (2001) discuss conditions of literacy
and argue that instruction is interaction involving
teachers, students, and content, and that instruction
takes place in environments, offering both constraints
and opportunities. The learning process of acquiring
a L2 for the ELLs is a complex process and involves
various factors. Yet, the learning environment has a
direct effect on ELL students’ learning. This is because
L2 acquisition involves affective aspects. Teachers can
facilitate this learning process by creating, within the
National Teacher Education Journal • Volume 4, Number 1
classroom environment, the conditions that offer more
opportunities than constraints. Only when teachers are
aware of this important point, are they able to teach more
effectively in the heterogeneous classroom. This leads
to our first question, why do teachers need the basics
of L2 acquisition knowledge to optimize the classroom
environment?
Theoretical Basics in L2 Acquisition
Regarding L2 acquisition, Krashen (1985) proposes
a comprehensible input hypothesis. Based on this
theory, ELLs acquire a L2 by understanding the
language that is slightly beyond their current level of
competence. In guessing and inferring the meaning of
linguistic information embedded in the communicative
context, learners are able to comprehend grammar and
vocabulary. Yet, the conscious mastery of grammar
and vocabulary does not prepare an ELL to use the
language for communicative purposes. Instead, it
serves as a monitor, a cognitive device that learners use
to assess their linguistic and semantic accuracy as they
communicate in a L2. However, the use of the monitor
decreases the amount of information that an ELL can
transmit; the process takes time, and thus disrupts
linguistic performance. In other words, Krashen insists
that fluency in L2 performance is the result of what ELLs
acquire in an incidental and subconscious way through
exposure to the language in a meaningful way and in the
natural context when the message and the meaning for
communication is understood.
Krashen’s comprehensible input hypothesis is drawn
from Chomsky’s (1965) theory, which suggests that
the human brain has a genetically evolved Language
Acquisition Device (LAD). Krashen (1985) extends
Chomsky’s theory, saying that this mental device
functions more or less in all human beings. When this
device receives intelligible and meaningful messages,
the brain has no choice but to acquire the language, just
as our visual system has no choice but to see. However,
the learner may not always understand this language
input and it may not reach the LAD. This situation can
be caused by what Krashen refers to as affective filter,
which consists of a set of negative influences, such as
high anxiety, low motivation, and low self-esteem. The
high affective filter creates a mental block to make it
difficult for the language message to reach the LAD.
This indicates that, when interacting with ELLs, teachers
need to create an environment that reduces anxiety,
increases motivation, and enhances self-esteem in order
to lower affective filter and increase chances for ELLs
to learn. The comprehensible input theory also suggests
to teachers that instructional messages to ELLs must be
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27
meaningful and comprehensible.
Cummins (1981) contributes to L2 acquisition theories
by formulating his knowledge transfer theory and two
types of L2 proficiency. He criticizes the arguments
on both sides of L2 debates as oversimplified, i.e., one
side argues that bilingual education delays English
acquisition whereas the other side suggests that children
master their first language (L1) before learning English.
He points out that neither argument could stand up to
theoretical examination. In opposition, he proposes an
interdependent hypothesis, saying that different language
skills inhabit the same part of the brain, reinforcing each
other at the base while differing at the surface. Based
on this duel model of the bilingualism, Cummins (1981)
proposes the knowledge transfer theory and explains
that an ELL who has mastered the basics of reading
and writing in L1 will perform relatively well in a L2
environment since cognitive knowledge in L1 facilitates
the learning in a L2 context, i.e., the knowledge transfers
from L1to L2.
Cummins (1981) also proposes two types of L2
proficiency. The two types are basic interpersonal
communications skills (BICS) and cognitive-academic
language proficiency (CALP). He argues that BICS
develops within two to three years of an ELL’s entering
the English-speaking environment. This type of L2
proficiency is developed depending on clues, e.g.,
visual gestures, conversational responses, and physical
interactions. BICS is not enough to support the academic
success for the ELLs although they may appear orally
fluent in English after two or three years. If they are to
succeed cognitively and meet the academic demand of
school, i.e., have the proficiency in reading and writing
skills, ELLs must have CALP, which is fundamental for
academic success. CALP is developed in about five to
seven years, best nurtured by ELLs’ existing knowledge
in L1. From Cummins’ theory, implication is that L2
learning takes time and needs the support of ELLs’
existing knowledge in L1.
In exploring the basics of L2 theoretical perspectives, it
is obvious that L2 acquisition involves various aspects.
In addition, any spoken language, as a social instrument,
not only gives an individual identity but also affects
how individuals interact in society (Jalongo, 2007).
Olsen (2000) also studies ELLs’ adjustment to a new
language and culture and explains that becoming fluent
English speakers is the prime goal embraced by most
ELLs because English is a fundamental requirement
for acceptance and participation in the dominant
society. In other words, English is not just a vehicle
of communication. Rather, it is a social and political
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Winter 2011
marker of affiliation and belonging. Going through a
life transition of identity recognition from a familiar
culture to one that is unfamiliar, Ells have already
felt a sense of loss. The inadequacy in using the new
language adds to the sense of loss and to the anxiety in
meeting the academic demands of school. Thus, when
understanding the complexity of this process, teachers
need to provide support for ELLs to learn by reducing
negative influences, e.g., lower anxiety and enhance
self-esteem and motivation to facilitate ELLs’ academic
success.
Reexamining
Perspective
Kelly’s
Case
from
a
Theoretical
After viewing the theoretical perspective of L2
acquisition, we propose that the reader re-examine
Kelly’s lesson. Several points of these L2 theories are
relevant. Comprehensible input reveals the importance
of meaningful instruction to ELLs; affective filter implies
the need of supportive learning environment; transfer
theory reminds teachers of the link between existing
knowledge in L1 and the learning in L2; two types of
L2 proficiency indicates that L2 acquisition is a long,
complicated process. Keeping these basics in mind,
there are at least four types of inappropriate instructional
aspects in Kelly’s social studies lesson. They are: 1) the
teacher’s questions about Constitutional Amendments
did not contain comprehensible input for Kelly to
understand because she hardly knew basic English
words; 2) classroom environment was characterized
with high affective filter in that the teacher failed to
adapt the instruction, e.g., the questioning technique
that created anxiety instead of reducing it for Kelly; 3)
Kelly was forced to produce correct responses when
she had developed neither BICS nor CALP; and 4) the
teacher failed to make a link between Kelly’s existing
knowledge in L1 to the learning in L2 to catch the
teachable moment.
The first inappropriateness is related to Krashen’s theory.
By the time the case study began, Kelly was in her
American school for only four months with no previous
exposure in an English-speaking environment. The
teacher’s questions contained words, such as “illegal
seizure” and “freedom of speech,” which were apparently
incomprehensible for Kelly. The second is also related to
Krashen’s theory. The affective filter is a set of negative
influences that involve high anxiety, low motivation,
and low self-esteem. Because Kelly had limited English
proficiency to understand and to answer the questions
that were asked, it created anxiety for her, which in turn
affected her self-esteem. The third one is associated
with Cummins’ theory. Kelly was much quieter and less
National Teacher Education Journal • Volume 4, Number 1
social as compared to her English-speaking peers in the
classroom because she had developed neither BICS nor
CALP to enable her to have a conversation with peers.
This is theoretically called a silent period, which is
about the first six months of the ELL who is building up
competency in L2 by observing and listening. Without
understanding this period, the teacher gave Kelly no
choice but to produce. The consequence was thus
counterproductive. The final inappropriateness is also
associated with Cummins’ theory. The teacher failed
to connect Kelly’s existing knowledge to new learning.
Kelly was reading the same Chinese book in school and
at home with every intention to be successful. The book
could have been used as an effective tool by the teacher
to give her the confidence and encouragement. Yet, the
teacher did not use such a teachable moment.
Suggestions for the Teachers of ELLs
Due to immigration policy changes in the late 1960s,
the United States is facing one of the largest immigration
population increases (Stodolsky & Grossman, 2000). In
1970, this population was 9.6 million or 4.7 percent of
the U.S. total; yet, it increased to 28.4 million or 10.1
percent in 2000 (Ovando, Collier, & Combs, 2005; U.S.
Census, 2005). The national demographics affect school
populations. As a result, every teacher is responsible for
teaching ELLs today. Acknowledging the challenge for
teachers and adapting instruction to meet the needs of
all students in classrooms are imperative. Therefore,
it becomes necessary for teachers to know the basic of
L2 acquisition. In exploring the L2 theories, we have
answered the question on why teachers need to have L2
acquisition knowledge. To answer the how question, we
now provide the following suggestions to help teachers
in accomplishing the goal of teaching effectively in a
heterogeneous classroom where there are ELL students.
• Plan lessons based on comprehensible input.
L2 acquisition occurs as the result of exposure
to comprehensible input. Therefore, when
planning lessons for teaching, teachers need to
focus on meaningful instruction and also make
instructional delivery clear and understandable
for ELLs. When designing learning activities,
teachers should pay attention to providing clear
directions that are comprehensible for ELLs.
Modify the wording and provide additional
explanations to ELLs when necessary.
• Build an affective support. L2 acquisition
involves various factors, including affective
aspects. An affectively supportive environment
is important for ELLs’ learning. ELLs respond
National Teacher Education Journal • Volume 4, Number 1
to a new language positively when environments
are encouraging, supportive, motivating,
and giving them confidence (Krashen,
1985; Ovando, Collier, & Combs, 2005). In
designing learning settings, educators should
consciously create friendly, positive, less tense
styles of teaching within an atmosphere that
lowers students’ anxiety and provides affective
support for ELLs and all students to learn
productively.
• Motivate ELLs by incorporating their
existing knowledge. Motivation is a key to
learning for all students. Effective literacy is
also associated with using children’s existing
background knowledge (Heilman, Blair,
& Rupley, 2002). Therefore, teachers can
motivate ELLs by flexibly adapting various
methods to catch the teachable moment and
engage them. Asking ELLs to talk about
their cultures, sharing school experiences or
teaching the class a few words in a different
language are some examples of incorporating
ELLs’ existing knowledge and motivate them
to learn. Teachers also need to provide positive
feedback when students are making progress to
give them confidence.
• Design an interactive learning. A current
feature of L2 instruction is to provide interactive
learning opportunities. School is the only place
for most ELLs to experience the academics in
L2. In an interactive classroom, students are
engaged in problem solving and discovery
learning within an interactive community of
dynamic peers and teacher-student partnerships
to invigorate deep learning. Interactive learning
also ensures that instruction and learning
are a shared responsibility and an active
process (Ovando, Collier, & Combs, 2005).
Teachers can achieve this goal by constructing
cooperative learning atmospheres, such as
structuring the class in small, heterogeneous
groups to accomplish individual as well as
group learning objectives that are positively
interdependent.
• Seek L2 acquisition knowledge intently.
Teachers with ELLs in their classrooms will
not feel frustrated when they have basic
knowledge of L2 acquisition theories. For
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29
example, teachers will understand that the first
six months of being in an English-speaking
environment is a period of adjustment referred
to as a silent period. To assist this process,
the teacher can organize learning by peer
role modeling, by providing opportunities
for children to listen and observe instead of
being forced to speak. Teachers can create
a comfortable zone, such as an independent
study area around a bookshelf or the corner of
the classroom to allow time for ELLs to make
their own choice and learn without distraction
(Jalongo, 2007). To seek L2 acquisition
knowledge for teaching effectiveness, teachers
can read various materials, attend workshops,
and participate in L2 study programs to gain
such knowledge.
• Involve students in hands-on and problem
solving activities. Provide students opportunities
for purposeful language use. Teachers should
not lower expectations for ELLs. Students
need to be intellectually challenged despite
their limited L2 proficiencies. Use pictures,
charts, and timelines to make materials more
“user friendly”. Design activities that relate
to the students’ real-life experiences and to be
engaged in solving some interesting, real-life
problems that encourage both critical thinking
and basic skills.
A Final Word
Instruction is interaction involving teachers, students,
and content. Instruction takes place in an environment
that offers both constraints and opportunities (Cohen &
Ball, 2001). Educators need to be thoughtful in planning
each lesson and view instruction as an interactive tool to
reduce constraints, optimize opportunities, and maximize
positive influences. Equity does not mean sameness
(Gollnick & Chinn, 2008) and it is a misconception
that education equality requires that teachers prepare
all students with the same teaching strategies. Instead,
teachers must adapt instruction to meet the needs of
diverse learners in classrooms. Education is a bridge
that must enhance communication, understanding, and
the human potential of all students including language
minorities (Fass, 1989). As school diversity increases,
the challenge for teachers also increases. It is thus
crucial that educators continue exploring and acquiring
the knowledge to meet the needs of diverse learners in
classrooms today.
Figure 1. A drawing sample done by Kelly.
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National Teacher Education Journal • Volume 4, Number 1
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