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Thursday, November 6, 2008

constructivism

Social Constructivism
Social constructivism emphasizes the importance of culture and context in understanding what occurs in society and constructing knowledge based on this understanding (Derry, 1999; McMahon, 1997). This perspective is closely associated with many contemporary theories, most notably the developmental theories of Vygotsky and Bruner, and Bandura's social cognitive theory (Shunk, 2000).

Assumptions of Social Constructivism
Social constructivism is based on specific assumptions about reality, knowledge, and learning. To understand and apply models of instruction that are rooted in the perspectives of social constructivists, it is important to know the premises that underlie them.
Reality: Social constructivists believe that reality is constructed through human activity. Members of a society together invent the properties of the world (Kukla, 2000). For the social constructivist, reality cannot be discovered: it does not exist prior to its social invention.
Knowledge: To social constructivists, knowledge is also a human product, and is socially and culturally constructed (Ernest, 1999; Gredler, 1997; Prat & Floden, 1994). Individuals create meaning through their interactions with each other and with the environment they live in.
Learning: Social constructivists view learning as a social process. It does not take place only within an individual, nor is it a passive development of behaviors that are shaped by external forces (McMahon, 1997). Meaningful learning occurs when individuals are engaged in social activities.
Intersubjectivity of Social Meanings
Intersubjectivity is a shared understanding among individuals whose interaction is based on common interests and assumptions that form the ground for their communication (Rogoff, 1990). Communications and interactions entail socially agreed-upon ideas of the world and the social patterns and rules of language use (Ernest, 1999). Construction of social meanings, therefore, involves intersubjectivity among individuals. Social meanings and knowledge are shaped and evolve through negotiation within the communicating groups (Gredler, 1997; Prawat & Floden, 1994). Any personal meanings shaped through these experiences are affected by the intersubjectivity of the community to which the people belong.
Intersubjectivity not only provides the grounds for communication but also supports people to extend their understanding of new information and activities among the group members (Rogoff, 1990; Vygotsky, 1987). Knowledge is derived from interactions between people and their environments and resides within cultures (Shunk, 2000; McMahon, 1997). The construction of knowledge is also influenced by the intersubjectivity formed by cultural and historical factors of the community (Gredler, 1997; Prawat & Floden, 1994). When the members of the community are aware of their intersubjective meanings, it is easier for them to understand new information and activities that arise in the community.
Social Context for Learning
Some social constructivists discuss two aspects of social context that largely affect the nature and extent of the learning (Gredler, 1997; Wertch, 1991):
Historical developments inherited by the learner as a member of a particular culture. Symbol systems, such as language, logic, and mathematical systems, are learned throughout the learner's life. These symbol systems dictate how and what is learned.
The nature of the learner's social interaction with knowledgeable members of the society is important. Without the social interaction with more knowledgeable others, it is impossible to acquire social meaning of important symbol systems and learn how to use them. Young children develop their thinking abilities by interacting with adults.

General Perspectives of Social Constructivism on Learning
Social constructivists see as crucial both the context in which learning occurs and the social contexts that learners bring to their learning environment. There are four general perspectives that inform how we could facilitate the learning within a framework of social constructivism (Gredler, 1997):
Cognitive tools perspective: Cognitive tools perspective focuses on the learning of cognitive skills and strategies. Students engage in those social learning activities that involve hands-on project-based methods and utilization of discipline-based cognitive tools (Gredler, 1997; Prawat & Folden, 1994). Together they produce a product and, as a group, impose meaning on it through the social learning process.
Idea-based social constructivism: Idea-based social constructivism sets education's priority on important concepts in the various disciplines (e.g. part-whole relations in mathematics, photosynthesis in science, and point of view in literature, Gredler, 1997, p.59; Prawat, 1995; Prawat & Folden, 1994). These "big ideas" expand learner vision and become important foundations for learners' thinking and on construction of social meaning (Gredler, 1997).
Pragmatic or emergent approach: Social constructivists with this perspective assert that the implementation of social constructivism in class should be emergent as the need arises (Gredler, 1997). Its proponents hold that knowledge, meaning, and understanding of the world can be addressed in the classroom from both the view of individual learner and the collective view of the entire class (Cobb, 1995; Gredler, 1997).
Transactional or situated cognitive perspectives: This perspective focuses on the relationship between the people and their environment. Humans are a part of the constructed environment (including social relationships); the environment is in turn one of the characteristics that constitutes the individual (Bredo, 1994; Gredler, 1997). When a mind operates, its owner is interacting with the environment. Therefore, if the environment and social relationships among group members change, the tasks of each individual also change (Bredo, 1994; Gredler, 1997). Learning thus should not take place in isolation from the environment.
Social Constructivism and Instructional Models
Instructional models based on the social constructivist perspective stress the need for collaboration among learners and with practitioners in the society (Lave & Wenger, 1991; McMahon, 1997). Lave and Wenger (1991) assert that a society’s practical knowledge is situated in relations among practitioners, their practice, and the social organization and political economy of communities of practice. For this reason, learning should involve such knowledge and practice (Lave & Wenger, 1991; Gredler, 1997). Social constructivist approaches can include reciprocal teaching, peer collaboration, cognitive apprenticeships, problem-based instruction, webquests, anchored instruction and other methods that involve learning with others (Shunk, 2000).
Sorting Out Variations on the Terms "Constructionism" and Constructivism"
Table by Beth Clark, Jessie Griffin, and Dana Turner (Fall, 2007)Introductory comments by Gregory Clinton
Several of the important perspectives about learning discussed in this eBook are really epistemologies – that is, sets of beliefs about the nature of knowledge. What we believe about knowledge determines a great deal of what we believe about learning; and thus even the loftiest philosophical perspectives can have practical implications for how we approach teaching and learning.
Sorting Out Variations on the Terms "Constructionism" and Constructivism"
Philosophical Perspective/Theory
Key Points
Practical Implications
Social Constructionism (epistemology)(also called simply Constructionism)
· There is no meaning in the world until we construct it.· We do not find meaning, we make it.· The meaning we make is affected by our social interpretation of the thing.· The meaning we derive for objects arises in and out of the interactive human community.
Even if you bump into a tree, you cannot get meaning directly from the tree because you have ingrained social interpretations of the tree. You will assign meaning to the tree based on your social background and it will be a different meaning than the tree will get from any other person.
Social Constructivism (epistemology)
· Reality is constructed through human activity· Members of a society together invent the properties of the world.· People create meaning through their interactions with each other and the objects in the environment.· Learning is a social process. It occurs when people are engaged in social activities.· Associated in part with the work of Richard Prawat
A group of students are given a difficult WebQuest Math problem to work through. By using the different perspectives they have gained from their different backgrounds, they can help each other solve the problem more effectively that if they had worked alone.
Vygotsky’s Constructivism (epistemology)
· Social interaction in development of cognition· Social learning precedes development· MKO (More Knowledgeable Other)· ZPD –distance between the actual development level as determined by the independent problem solving and level of potential development as determined through problem solving under MKO· In ZPD provide scaffolding –masters task remove (fading)· Social interaction leads to increased knowledge
Struggling students in a Math class are assigned a peer tutor. (MKO) The peer tutor helps their partner work through problems by providing hints and instruction. (Scaffolding) Struggling students will stop relying on MKO as they work through ZPD levels. The amount of help from the peer tutor can be gradually reduced until they are no longer needed or relied on. (fading) The struggling students have reached the MKO level and no longer are struggling.
Piaget’s Constructivism (epistemology)
· Knowledge is actively constructed· More of a “theory” on how a child’s thinking evolves over time· Focuses on the commonality of learning stages· Need for equilibrium· Detached observation
At a certain stage of development all children will become aware of “self”. A mother places a mark on a child’s face without the child’s knowledge. She then places the child in front of a mirror. If the child has self awareness, he will reach to his face and touch the mark. However, if he has not developed self awareness, he will reach out to the mirror and try to touch the mark. He is unaware that it is his image in the mirror.
Papert’s Constructionism (also called simply Constructionism)
· Not an epistemology but “a theory of learning and a strategy for education” (Kafai & Resnick, 1996, p. 1). · Knowledge is actively constructed· Learning to learn· Focuses on the variance of individual and the environment· Dynamics of change· Engagement – Learning occurs through interaction and reflection· Learners can create meaning by building artifacts
In the University of Georgia’s Instructional Design & Development master’s program, the Design & Development Tools class invites students to choose any multimedia development project they personally find meaningful (within reasonable social and professional norms). The project is not required to be instructional in nature. They are then required to reflect on the design process via readings in design literature and writing an online design journal; and structures are put into place to promote interaction about the design process among peers. Finally, finished artifacts are displayed at the end of each semester in a public showcase event.
Seymour Papert on Constructivism and (Papert’s) Constructionism:"The word with the v expresses the theory that knowledge is built by the learner, not supplied by the teacher. The word with the n expresses the further idea that happens especially felicitously when the learner is engaged in the construction of something external or at least sharable" (Papert, 1991, p.3).
One difficulty is that often the same or similar terms are used in different ways by different scholars. The table below presents several variants of the terms “constructivism” and “constructionism.” Four of these are essentially philosophical perspectives about how we as learners come to know what we know, i.e., epistemologies; and one (Papert’s Constructionism) is a theory of learning tied to a particular instructional strategy. However, all of the terms presented below relate to the belief that learning is “constructed” by learners (individually or socially) rather than simply receiving knowledge from an instructor or other source.
Another potential difficulty is that the differences between the perspectives listed below can be very subtle. Social constructionism and social constructivism, for example, appear to be two different ways to talk about the same thing. However, constructivism generally allows the possibility that people can derive meaning from objects in the environment as well as from social interactions; social constructionism denies that deriving meaning directly from objects is possible (Crotty, 1998).
One important point to note is the distinction between epistemology, a set of beliefs about knowing, and ontology, a set of beliefs about what exists or what is real. While constructionist or constructivist epistemologies generally insist that individuals construct their own realities, and no two persons’ realities will be the same, this does not necessarily mean that those who hold these views believe multiple realities exist. Belief about the nature of the external world is not the same as belief about knowledge (Crotty, 1998).
Thus being a constructionist or constructivist does not require you to believe that there are multiple versions of the universe all floating around at the same time. It does mean, however, that each of us has a uniquely constructed version of reality that we carry around with us in our day-to-day experience as human beings. Two people looking at something together never actually see the same thing in the same way.
(As stated in this chapter, some constructionists and constructivists state that they believe reality does NOT exist apart from being socially invented by people. However, usually this may be taken as an epistemological statement, not an ontological statement. Few individuals would deny, for example, that if mankind were to someday succeed in self-annihilation, the planet and the rest of the universe would continue to exist apart from our meaning-making activity.)

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