Distributed scaffolding: Difference between revisions

Revision as of 20:11, 21 October 2012

Revision as of 01:48, 18 May 2016

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{{more footnotes|date=October 2012}}

'''Distributed scaffolding''' is a concept developed by Puntambekar and Kolodner (1998) that describes an ongoing system of student support through multiple tools, activities, technologies and environments that increase student learning and performance.

Originally introduced by Wood, Bruner, and Ross (1976), the learning tool of scaffolding is rooted in individualized support and tutoring. Through scaffolded or tutored instruction, a teacher was able to guide the student through a complex set of building block tasks in order to achieve a final pyramid product that the child may not have been able to complete without this active support. The term was conceptualized presuming instruction by an adult expert with a single student, however, the reality of classrooms with 20 or more students do not necessarily lend themselves to this specific structure. With many students and multiple different levels of skill or Zones of Proximal Development (defined below), there is a need to create many support structures that can properly address each student’s developmental level (Tabak, 2004; Puntambekar and Hübscher, 2005).

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::“the distance between the actual developmental level as determined by independent problem solving and the level of potential development as determined through problem solving under adult guidance, or in collaboration with more capable peers” (Vygotsky, 1978, p.86)

Scaffolding is not solely support or help and a support can be designated as scaffolding only when the support is adapted to changing ability and this support is temporary. Because the term scaffolding is accessible, there have been many uses of this construct that are atheoretical, and therefore cloud the way the tool is used and applied in a classroom (Palinscar, 1998). Scaffolding is guided by the theory of task and theory of tutee, which requires a combination of assessing task performance and learner ability (Puntambekar & Hübscher, 2005). Through the dialogic nature of scaffolding, the student and teacher interact in order to establish the optimal amount of assistance and titration of this assistance.

At the heart of the creation of the scaffolding extension to distributed scaffolding, was the need to address the many different ways a scaffold could be provided. Scaffolding need not be limited solely to a teacher student or parent-student situation (Stone, 1998); in fact scaffolding can be extended to include peers (Stone, 1998; Rogoff, 1990)

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==Components of Scaffolding==

There are five common components in the definition of scaffolding (Stone, 1998; Puntambekar & Kolodner, 2005):

#''Common Goal'': Creating a mutually defined goal between the guide and student helps achieve intersubjectivity (Rogoff, 1990) and recruitment of the student (Wood, Bruner, & Ross, 1976) to the task. This shared understanding contributes to successful scaffolding by enlisted common understanding of the ultimate completion of the task.

#''Ongoing Diagnosis'': Through ongoing diagnosis of task performance and student ability, the scaffold can be tailored to proved the optimal level of support. This dimension highlights the need for scaffolding to be deliberate and specific support for both the task and tutee and therefore illustrates the difference from mere support or hints and tailored task and tutee specific support.

#''Dynamic and Adaptive support:'' through interactive and constant assessment, teachers are able to evaluate student progress in order to tailor subsequent supports and tasks to the needs of the student.

#''Dialogues and interactions'' are foundational for scaffolding as the another key to the success for the student is the interactive nature of this tool enabling the student to be an active participant in learning and the teacher to be able to assess student understanding throughout the course of the project. This component is a foundational element to the [[reciprocal teaching]] method proposed by Palinscar and Brown (1984).

#''Fading and transfer of responsibility'': Fading is the final step of scaffolding and signifies a shift in responsibility from teacher/scaffold to individual responsibility and ability to complete the task. Through the “titration of assistance” (Stone, 1998, p. 349), the student takes on more responsibility in the task as scaffolds and guidance are adaptively reduced.

==Types of Distributed Scaffolds==

Tabak (2004) distinguishes between three different types of scaffolds: differentiated scaffolds, redundant scaffolds, and synergistic scaffolds.

#Differentiated scaffolds include the most basic types of support in which one scaffold is used per need for the task.

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==References==

Palincsar, A.S. (1998). Keeping the metaphor of scaffolding fresh – A response to C. Addison Stone’s “The Metaphor of Scaffolding: Its Utility for the Field of Learning Disabilities.” ''Journal of Learning Disabilities, 31''(4), 370-373.

Palinscar, A.S., & Brown, A.L. (1984). Reciprocal teaching of comprehension-fostering and comprehension-monitoring activities. ''Cognition and Instruction, 1''(2), 117-175.

Puntambekar, S., & Kolodner, J.L. (1998). Distributed scaffolding: Helping students learning by design. In A. S. Bruckman, M. Guzdial, J. L. Kolodner, & A. Ram (Eds.), ''Proceedings of the Third International Conference of the Learning Sciences (ICLS’98)''(pp. 35–41). Atlanta, GA: Association for the Advancement of Computing in Education.

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Puntambekar, S., & Hübscher, R. (2005). Tools for scaffolding students in complex learning environment: What have we gained and what have we missed? ''Educational Psychologist, 40''(1), 1-12.

Puntambekar, S., & Kolodner, J.L. (2005). Toward implementing distributed scaffolding: Helping students learn science from design. ''Journal of Research in Science Teaching, 42''(2), 185-217.

Rogoff, B. (1990). ''Apprenticeship in thinking: Cognitive development in social context.'' Oxford, UK: Oxford University Press.

Tabak, I. (2004). A complement to emerging patterns of distributed scaffolding. ''The Journal of the Learning Sciences, 13''(3), 305-335.

Stone, C.A. (1998). The metaphor of scaffolding: Its utility for the field of learning disabilities. ''Journal of Learning Disabilities, 31''(4), 344-364.

Vygotsky, L. S. (1978). ''Mind in society: The development of higher psychological processes.'' (M. Cole, V. John-Steiner, S. Scribner, & E. Souberman, Eds.). Cambridge, Massachusetts: Harvard University Press.

Wood, D., Bruner, J.S., & Ross, G. (1976). The role of tutoring in problem solving. ''J Child Psychol. Psychiat., 17'', 89-100.

[[Category:Educational psychology]]