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Theoretical underpinnings

Numerous recent studies examining some aspect of the achievement of English learners have been conducted (Abedi, 2008; Alvarez Greeson, 2008; Dean, 2006; Flynn, 2002; Karantinos, 2009; Olmstead, 2004; Pagan, 2005; Rodriguez, 2008; Weber, 2005). While the specific emphasis for each of these studies was different, a common finding was that certain factors matter more than others. For English learners, a key factor is language proficiency and the assessments that monitor and inform the language acquisition process (Abedi, 2008; Bielenberg&Wong Fillmore, 2004/2005; Cummins, 1981; Johnson, 2009; Kain&Singleton, 1996; Lee&Burkham, 2002; Marzano, 2004; Short&Echevarría, 2004/2005; Zwiers, 2004/2005). A second factor related to language proficiency and academic achievement is the ability to understand and use academic vocabulary for learning academic content (Aguila, 2010; Cummins, 2000; Dutro&Kinsella, 2010; Goldenberg&Coleman, 2010; Marzano&Pickering, 2005; Saunders&Goldenberg, 2010; Snow&Katz, 2010; Soto-Hinman&Hetzel, 2009). Language proficiency involves the ability to use and understand social and academic language in a variety of contexts. This level of vocabulary and language-use is constructed over time through explicit instruction that helps students to build the ability to understand and use the target language in all four language domains with attention to the purpose and the audience (Cummins, 1984; Snow&Katz, 2010).

Cummins (1981, 1984, 2000) described a theoretical framework for language proficiency as including three things. First, it needed to include a developmental viewpoint that accounted for levels of proficiency of both native speakers and language learners. The framework also needed to account for both social and academic discourse demands and had to include developmental connections between the primary and target languages.

Based on the sociocultural context of schooling, the framework Cummins (2000) proposed included four quadrants along two continuums. The vertical continuum addressed the level of cognitive demand involved in the communication: the amount of information the learner needed to process in order to fully participate in the activity or communicative exchange. The horizontal continuum addressed the level of contextual support present in the communication that would support expression and reception of meaning (See Figure 1). Quadrant A represented context-embedded, cognitively undemanding communications as would be expected in social exchanges. Quadrant C also represented cognitively undemanding communications, but with less contextual support for the communication, much as would be expected for a phone call, for instance, on a familiar topic. Both quadrants B and D represented communicative tasks for which the person might not be as familiar with the vocabulary. As a result, these communications would require a significant level of cognitive energy to fully participate in the communication.

Figure 1. A representation of Cummins’ quadrants. Illustrates how each quadrant represents task demand. For example, tasks that fall in quadrant A are both context embedded and cognitively undemanding. Tasks in quadrant B are more language dependent but are scaffolded through the use of visuals to support comprehension. Adapted from Cummins, 1984.

Questions & Answers

How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
research.net
kanaga
sciencedirect big data base
Ernesto
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
Daniel
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
Maciej
characteristics of micro business
Abigail
for teaching engĺish at school how nano technology help us
Anassong
How can I make nanorobot?
Lily
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
NANO
how can I make nanorobot?
Lily
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
s.
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
Tarell
what is the actual application of fullerenes nowadays?
Damian
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
Tarell
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
Virgil
is Bucky paper clear?
CYNTHIA
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
NANO
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Source:  OpenStax, Educational leadership and administration: teaching and program development, volume 23, 2011. OpenStax CNX. Sep 08, 2011 Download for free at http://cnx.org/content/col11358/1.4
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