Essential features
There are three essential features of scaffolding that facilitate learning. # The first feature is the interaction between the learner and the expert. This interaction should be collaborative for it to be effective. # The second is that learning should take place in the learner'sEffective scaffolding
For scaffolding to be effective teachers need to pay attention to the following: # The selection of the learning task: The task should ensure that learners use the developing skills that need to be mastered.Wood, D., Bruner, J., & Ross, G. (1976)Theory of scaffolding
''Scaffolding theory'' was first introduced in the late 1950s byLevels and types in the educational setting
According to Saye and Brush, there are two levels of scaffolding: soft and hard (2002). An example of soft scaffolding in the classroom would be when a teacher circulates the room and converses with his or her students (Simon and Klein, 2007). The teacher may question their approach to a difficult problem and provide constructive feedback to the students. According to Van Lier, this type of scaffolding can also be referred to as contingent scaffolding. The type and amount of support needed is dependent on the needs of the students during the time of instruction (Van Lier, 1996). Unfortunately, applying scaffolding correctly and consistently can be difficult when the classroom is large and students have various needs (Gallagher, 1997). Scaffolding can be applied to a majority of the students, but the teacher is left with the responsibility to identify the need for additional scaffolding. In contrast with contingent or soft scaffolding, embedded or hard scaffolding is planned in advance to help students with a learning task that is known in advance to be difficult (Saye and Brush, 2002). For example, when students are discovering the formula for the Pythagorean Theorem in math class, the teacher may identify hints or cues to help the student reach an even higher level of thinking. In both situations, the idea of "expert scaffolding" is being implemented (Holton and Clarke, 2006): the teacher in the classroom is considered the expert and is responsible for providing scaffolding for the students. Reciprocal scaffolding, a method first coined by Holton and Thomas, is a method that involves a group of two or more collaboratively working together. In this situation, the group can learn from each other's experiences and knowledge. The scaffolding is shared by each member and changes constantly as the group works on a task (Holton and Clarke, 2006). According to Vygotsky, students develop higher-level thinking skills when scaffolding occurs with an adult expert or with a peer of higher capabilities (Stone, 1998). Conversely, Piaget believes that students discard their ideas when paired with an adult or student of more expertise (Piaget, 1928). Instead, students should be paired with others who have different perspectives. Conflicts would then take place between students allowing them to think constructively at a higher level. Technical scaffolding is a newer approach in which computers replace the teachers as the experts or guides, and students can be guided with web links, online tutorials, or help pages (Yelland and Masters, 2007). Educational software can help students follow a clear structure and allows students to plan properly (Lai and Law, 2006).Directive and supportive scaffolding
Silliman and Wilkinson (1994) distinguish two types of scaffolding: 'supportive scaffolding' that characterises the IRF (Initiation-Response-Follow-up) pattern; and 'directive scaffolding' that refers to IRE (Initiation-Response-Evaluation). Saxena (2010)Saxena, M. (2010) Reconceptualising teachers' directive and supportive scaffolding in bilingual classrooms within the neo-Vygotskyan approach. Journal of Applied Linguistics & Professional Practice, 7 (2), pp. 163-184 develops these two notions theoretically by incorporating Bhaktin's (1981)Bakhtin, M.M. (1981) The Dialogic Imagination: Four Essays by M. M. Bakhtin. Edited by M. Holquist and translated by C. Emerson and M. Holquist. Austin: University of Texas Press. and vanLier's (1996)Van Lier, L. (1996) Interaction in the Language Curriculum: Awareness, Autonomy, and Authenticity. London: Longman. works. Within the IRE pattern, teachers provide 'directive scaffolding' on the assumption that their job is to transmit knowledge and then assess its appropriation by the learners. The question-answer-evaluation sequence creates a predetermined standard for acceptable participation and induces passive learning. In this type of interaction, the teacher holds the right to evaluate and asks 'known-information' questions which emphasise the reproduction of information. The nature and role of the triadic dialogue have been oversimplified and the potential for the roles of teachers and students in them has been undermined (Nassaji and Wells, 2000).Nassaji, H. and Wells, G. (2000) What's the use of "triadic dialogue"? An investigation of teacher-student interaction. Applied Linguistics 21 (3): 376--406. If, in managing the talk, teachers apply 'constructive power' (Saxena, 2009) and exploit students' responses as occasions for joint exploration, rather than simply evaluating them, then the classroom talk becomes dialogic (Nystrand, 1997). The pedagogic orientation of this talk becomes 'participation orientation', in contrast to 'display/assessment orientation' of IRE (van Lier, 1996). In this kind of pattern of interaction, the third part of the triadic dialogue offers 'follow-up' and teachers' scaffolding becomes 'supportive'. Rather than producing 'authoritative discourse' Bakhtin's (1981), teachers constructs 'internally persuasive discourse' that allows 'equality' and 'symmetry' (van Lier, 1996:175), wherein the issues of power, control, institutional managerial positioning, etc. are diffused or suspended. The discourse opens up the roles for students as the 'primary knower' and the 'sequence initiator' (Nassaji and Wells, 2000), which allows them to be the negotiator and co-constructor of meaning. The suspension of asymmetry in the talk represents a shift in the teacher's ideological stance and, therefore, demonstrates that supportive scaffolding is more than simply a model of instruction (Saxena, 2010: 167).The role of guidance
Guidance and cognitive load
Learner support in scaffolding is known as guidance. While it takes on various forms and styles, the basic form of guidance is any type of interaction from the instructor that is intended to aid and/or improve student learning.Wise, A. F., & O'Neill, K. (2009). Beyond more versus less: A reframing of the debate on instructional guidance. Retrieved from http://psycnet.apa.org/psycinfo/2009-09809-005 While this a broad definition, the role and amount of guidance is better defined by the instructor's approach. Instructionists and constructionists approach giving guidance within their own instructional frameworks. Scaffolding involves presenting learners with proper guidance that moves them towards their learning goals. Providing guidance is a method of moderating theAmount of guidance
Research has demonstrated that higher level of guidance has a greater effect on scaffolded learning, but is not a guarantee of more learning. The efficacy of higher amount of guidance is dependent on the level of detail and guidance applicability. Having multiple types of guidance (i.e. worked examples, feedback) can cause them to interact and reinforce each other. Multiple conditions do not guarantee greater learning, as certain types of guidance can be extraneous to the learning goals or the modality of learning. With this, more guidance (if not appropriate to the learning) can negatively impact performance, as it gives the learner overwhelming levels of information. However, appropriately designed high levels of guidance, which properly interact with the learning, is more beneficial to learning than low levels of guidance.Context of guidance
Constructivists pay close attention to the context of guidance because they believe instruction plays a major role in knowledge retention and transfer. Research studies demonstrate how the context of isolated explanations can have an effect on student-learning outcomes. For example, Hake's (1998) large-scale study demonstrated how post-secondary physics students recalled less than 30% of material covered in a traditional lecture-style class. Similarly, other studies illustrate how students construct different understandings from explanation in isolation versus having a first experience with the material. A first, experience with the material provides students with a "need to know", which allows learners to reflect on prior experiences with the content, which can help learners construct meaning from instruction. Worked examples Worked-example effect are guiding tools that can act as a "need to know" for students. Worked examples provide students with straightforward goals, step-by-step instructions as well as ready-to-solve problems that can help students develop a stronger understanding from instruction.Timing of guidance
Guiding has a key role in both constructivism and 'instructivism'. For instructivists, the timing of guidance is immediate, either at the beginning or when the learner makes a mistake, whereas in constructivism it can be delayed. It has been found that immediate feedback can lead to working memory load as it does not take in consideration the process of gradual acquisition of a skill,John R. Anderson; Albert T. Corbett; Kenneth R. Koedinger; Ray Pelletier The Journal of the Learning Sciences, Vol. 4, No. 2. (1995), pp. 167-207. which also relates to the amount of guidance being given. Research on intelligent-tutoring systems suggests that immediate feedback on errors is a great strategy to promote learning. As the learner is able to integrate the feedback from short-term memory into the overall learning and problem solving task; the longer the wait on feedback, the harder it is for the learner to make this integration. Yet, in another study it was found that providing feedback right after the error can deprive the learner of the opportunity to develop evaluative skills. Wise and O'Neill bring these two, seemingly contradictory findings, and argue that it does not only prove the importance of the role of feedback, but that points out a timing feature of feedback: immediate feedback in the short term promotes more rapid problem solving, but delaying feedback can result in better retention andConstructivism and guidance
Instructivism and guidance
Instructionism are educational practices characterized for being instructor-centered. Some authors see instructionism as a highly prescriptive practice that mostly focuses on the formation of skills, that is very product-oriented and is not interactive; or that is a highly structured, systematic and explicit way of teaching that gives emphasis to the role of the teacher as a transmitter of knowledge and the students as passive receptacles.Johnson, G. (2009). Instructionism and Constructivism: Reconciling Two Very Good Ideas. ''International Journal of Special Education'', 24(3), 90-98. The 'transmission' of knowledge and skills from the teacher to the student in this context is often manifested in the form of drill, practice and rote memorization. An 'instructionist', then, focuses on the preparation, organization and management of the lesson making sure the plan is detailed and the communication is effective. The emphasis is on the up-front explicit delivery of instruction. Instructionism is often contrasted with constructivism. Both of them use the term guidance as means to support learning, and how it can be used more effectively. The difference in the use of guidance is found in the philosophical assumptions regarding the nature of the learner, but they also differ in their views around the quantity, the context and the timing of guidance. An example of application of instructionism in the classroom isMinimal guidance in education
''With traditional power dynamics in the classroom, the teacher is the authority. In order to engage in meaningful student talk, we need to break this hierarchy.''Minimal guidance is a general term applied to a variety of pedagogical approaches such as inquiry learning, learner-centered pedagogy,
''A safe approach is to offer three options. The teacher designs two options based on what most students may like to do. The third choice is a blank check -- students propose their own product or performance.''In this approach, the role of the teacher may change from what has been described as "sage on the stage" to "guide on the side" with one example of this change in practice being that teachers will not tend to answer questions from students directly, but instead will ask questions back to students to prompt further thinking. This change in teaching style has also been described as being a "facilitator of learning" instead of being a "dispenser of knowledge". Minimal guidance is regarded as controversial and has been described as a caricature that does not exist in practice, and that critics have combined too many different approaches some of which may include more guidance, under the label of minimal guidance. However, there is some evidence that in certain domains, and under certain circumstances, a minimal guidance approach can lead to successful learning if sufficient practice opportunities are built in.
Minimal guidance in education: Criticisms and controversies
One strand of criticism of the minimal guidance approach originating inMinimal guidance in education: Synthesis and solutions
''One of the consequences of this reconceptualization is abandoning the rigid explicit instruction versus minimal guidance dichotomy and replacing it with a more flexible approach based on differentiating specific goals of various learner activities in complex learning.''There have been several attempts to move beyond the minimal guidance versus fully guided instruction controversy. These are often developed by introducing the variable of learner expertise and using that to suggest adapting instructional styles depending on the level of expertise of the learner, with more expert learners generally requiring less direct instruction. For example, despite providing many of the criticisms of minimal guidance,
''If instead we entertain the possibility that instruction and discovery are not oil and water, that instruction and discovery coexist and can work together, we may find a solution to this impasse in the field. Perhaps our way out of the instructivist-constructivist impasse thus involves not a “middle ground” compromise but an alternative conceptualization of instruction and discovery.''
Applications
Instructional scaffolding can be thought of as the strategies that a teacher uses to help learners bridge a cognitive gap or progress in their learning to a level they were previously unable to accomplish.van de Pol, Janneke, Volman, Monique, & Beishuizen, Jos. (2010). Scaffolding in Teacher–Student Interaction: A Decade of Research. ''Scaffolding mediated by technology
When we teach students who are not physically present in the classroom, instructors need to adapt to the environment and their scaffolding needs to be adjusted to fit this new learning medium. It can be challenging to find a way to adjust the verbal and visual elements of scaffolding to construct a successful interactive and collaborative learning environment for distance learning. The recent spread of technology used in education has opened up the learning environment to include AI-based methods, hypermedia, hypertext, collaborative learning environments, and web-based learning environments. This challenges traditional learning design conceptions of scaffolding for educators.Hannafin, M., Hill, J. & Land, S. (1999). Student-centered learning and interactive multimedia: Status, issues, and implication. Contemporary Education 68(2): 94–99. A recent review of the types of scaffolding used in online learning identified four main types of scaffolding: *conceptual scaffolding: helps students decide what to consider in learning and guide them to key concepts *procedural scaffolding: helps students use appropriate tools and resources effectively *strategic scaffolding: helps students find alternative strategies and methods to solve complex problems *metacognitive scaffolding: prompts students to think about what they are learning throughout the process and assists students reflecting on what they have learnt (self-assessment). This is the most common research area and is thought to not only promote higher order thinking but also students ability to plan ahead. Reingold, Rimor and Kalay have listed seven mechanisms of metacognitive scaffolding that encourage students' metacognition in learning. These four types are structures that appropriately support students' learning in online environments. Other scaffolding approaches that were addressed by the researchers included: technical support, content support, argumentation template, questioning and modelling. These terms were rarely used, and it was argued that these areas had unclear structure to guide students, especially in online learning, and were inadequately justified. As technology changes, so does the form of support provided to online learners. Instructors have the challenge of adapting scaffolding techniques to this new medium, but also the advantage of using new web-based tools such as wikis and blogs as platforms to support and discuss with students.Benefits in online learning environments
As the research in this area progresses, studies are showing that when students learn about complex topics with computer-based learning environments (CBLEs) without scaffolding they demonstrated poor ability to regulate their learning, and failure to gain a conceptual understanding of the topic. As a result, researchers have recently begun to emphasize the importance of embedded conceptual, procedural, strategic, and metacognitive scaffolding in CBLEs. In addition to the four scaffolding guidelines outlined, recent research has shown: * scaffolding can help in group discussions. In a recent study, a significant increase in active participation and meaningful negotiations was found within the scaffolded groups as opposed to the non-scaffolded group. * metacognitive scaffolding can be used to encourage students in reflecting and help build a sense of a community among learners.R. Reingold, R.Rimor, and A. Kalay, "Instructor's scaffolding in support of student's metacognition through a teacher education online course: a case study," Journal of Intercative Online Learning, vol. 7, no. 2, pp. 139-151, 2008. Specifically, Reingold, Rimor and Kalay recommend using metacognitive scaffolding to support students working on a common task. They believe this can support learners to experience their work as part of a community of learners.Downfalls in online learning environments
An online learning environment warrants many factors for scaffolding to be successful, this includes basic knowledge of the use of technology, social interactions and reliance on student's individual motivation and initiative for learning. Collaboration is key to instructional scaffolding and can be lost without proper guidance from an instructor creating and initiating an online social space. The instructor's role in creating a social space for online interaction has been found to increase student's confidence in understanding the content and goals of the course. If an instructor does not create this space a student misses out on critical-thinking, evaluating material and collaborating with fellow students to foster learning. Even with instructors implementing a positive social space online, a research study found that students perceptions of incompetence to other classmates is not affected by positive online social spaces but found this to be less of a problem in face-face courses. Due to the distance learning that encompasses an online environment, self-regulation is essential for scaffolding to be effective, a study has shown that procrastinators are at a disadvantage in online distance learning and are not able to be scaffolded in the same degree as if there was an in-person instructor. Students who had more desire to master the content than to receive higher grades were more successful in the online courses. A study by Artino and Stephens found that graduate students were more motivated in online course than undergraduate students but suggests academic level may contribute to the amount of technological support that is needed for positive learning outcomes, finding that undergraduate students needed less support than graduate students when navigating an online course.See also
* * * * * * *Notes
References
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