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Encounters between generations where practice is passed on and transformed, Wenger (1998) argues, are the elements of practice that are most typically understood as learning. The psychological process of how this learning takes place however remains somewhat unclear. Though CoP theory demonstrates the importance of identity, practice and participation, it fails to fully theorise the process by which these practices are actually learned. Vygotsky’s (1998) Zone of Proximal Development (ZPD) however offers a theoretical explanation as to how individual learning occurs through social exchanges and the internalisation of knowledge. In a CoP a member must identify and perform the valued practices of the community. But to learn new practices it is necessary for the learner to negotiate enabling learning relationships with others who have a better understanding of the practice. Through such learning relationships, the more knowledgeable other may then assist the

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newcomer to pass through their ZPD for a given practice, ultimately enabling them to learn how to perform the practice independently. Thus, without enabling learning relationships it is impossible to successfully participate in a CoP (Tobbell and O’Donnell, 2013b). This necessity of strong learning relationships for placement learning specifically, was identified earlier in the literature review in research that highlighted the importance of the relationship between placement students and their workplace supervisors. It is necessary therefore to additionally underpin sociocultural analysis of the student placement experience with the work of Vygotsky. The focus is placed specifically on Vygotsky’s concept of the ZPD in particular as it “constitutes one of the few theoretical resources which deconstructs the learning process for the individual” (Tobbell, 2006, p72) and thus offers a powerful tool to understand learning (Wass and Golding, 2014). This is an aspect of Vygotsky’s learning theory that has been used successfully in past academic research to understand adult learning, despite originally being developed for use with children.

In the context of the current study, the concept of the zone of proximal development (ZPD) is drawn upon to theorise the interactive nature of participation in the placement community and to highlight the importance of attending to learning relationships when seeking to understand the process of learning on placement. The concept of the ZPD offers a means to analyse the mechanisms by which interactions and relationships formed in the workplace facilitate (or hinder) students in internalising the knowledge and performances of their placement community’s valued practices, in the course of mutual engagement.

Vygotsky (1978) suggested the process of learning to involve two developmental levels – the actual developmental level (that which a person is independently capable of) – and the level of potential development (that which they can do when working under guidance or in collaboration with more capable others). Traditionally in education, independent performance is treated as the best indicator of an individual’s capabilities. Where a person can complete a task or solve a problem without assistance, they are deemed competent, but where they require help, their performance is considered less of a reflection of their actual capabilities. But Vygotsky (1978) suggests, that which can be done with assistance, is in some sense a greater indicator of mental development than that which can be done alone.

To demonstrate this point Vygotsky cites an example of two school children, both aged 10, and both of whom can perform tasks to a mental age of eight, he questions whether these two children are the same mental age, and the logical answer is yes, both can independently deal with tasks up to the degree of difficulty that is standardised for the typical eight-year-old. However, if both of these children were then shown ways of dealing with various problems, and with assistance and one 8-year-

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old can solve problems up to a standardised 12-year-old level, where the other can only solve problems when assisted up to a standardised nine-year-old level, then these two children could no longer be deemed the same age mentally. This difference is referred to as the zone of proximal development. It is the difference between actual development and the level of potential development. The actual developmental level Vygotsky suggests regards the end products of development. Where a person can perform something independently, they have developed the functions for that performance. The ZPD however regards the functions that have not yet developed but are in the process of maturation.

In the context of work placements, the ZPD can be understood as the distance between the placement students’ unaided performance when participating in workplace practices and that which they may achieve on placement when helped by others, such as their long-serving colleagues or their more knowledgeable peers (including potentially, fellow placement students).

The concept of the ZPD has important implications for understanding the placement learning experience as it reinforces the significance of workplace relationships in learning. The contribution of learning relationships and the type and amount of support they afford should be in part determined by the placement students’ ZPD for any given task (Fleming and Haigh, 2018). The extent to which a given placement students’ colleagues and peers seek to uncover their current capabilities, and their requirements to pass through the ZPD therefore, becomes an important area to attend to when analysing the process of learning on placement, and the nature by which this learning process is helped or hindered by the behaviours engaged in by fellow community members.

It is not however, only the amount and nature of guidance which should be determined by the ZPD, but the nature of the task itself. Work placement tasks which are geared toward learning that has already been achieved will be ineffective, as will tasks that are too far beyond what the student can achieve even with assistance. Returning to the example of Valle and Weiss’s (2010) study of graffiti artists, it was explained that graffiti artists progress in skill. Their art begins with ‘tags’, then ‘bombs’, then ‘3Ds’ and finally ‘realistic pieces’. A tag is fast and easy and with practice can almost become automatic. Realistic pieces in contrast require expert skills applied in a way that accurately represents an object, person or animal with a mastery of matters of proportion, detail and shadows (Valle and Weiss, 2010). Thus, if an accomplished graffiti artist attempted to help a mid-level artist improve their skills, teaching focused on producing a tag would be too simple to produce learning. For the mid-level artist, the tag might already be produced with such ease that it is almost automatic. Relatedly, an expert trying to teach a novice to do a realistic piece would again likely fail to produce positive outcomes, as the newcomer has not yet mastered the stages in between. They must incrementally

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build up to producing a realistic piece, it would not yet be in their ZPD and as such they would not be able to produce it even with guidance.

Applying the concept to higher education, Wass and Golding (2014) explored how a student could be supported to pass through the ZPD to develop the skill of critical thinking in the context of a zoology course. If Zoology students were presently unable to evaluate claims based on theory and reasoning, Wass and Golding suggest, they can be taught to do so with assistance through the provision of guidance. But key to this process is that the teacher assigns a task that lies within the ZPD – a task which can be achieved, but only with assistance. To assist students in passing through the ZPD for critical thinking, they recommended the use of scaffolding. Scaffolding is a concept first coined by Wood, Brunner and Ross (1976) whereby students are provided with support, prompts, directions and resources in order to enable them to achieve a task that would be otherwise beyond their abilities, and as the learner masters each element of their task, support is gradually tapered to gradually transition responsibility of the performance from teacher to learner. A zoology teacher might, they suggest, scaffold students to evaluate scientific claims by offering them questions such as ‘what evidence supports the claim, is there evidence to the contrary’? As students frequently attempt to address questions such as these, they will eventually learn to use this line of thinking themselves in similar scenarios that require critical thinking in the future. Wass and Golding stress however that there is a difference between scaffolding learning and simply structuring it, as the latter would help the students complete the task but would not allow them to learn from it. If zoology students for instance, were asked to evaluate a scientific claim by simply reading an article that provides a critical argument in relation to the question, the student would then be able to evaluate the claim and offer evidence, but they may still be unable to understand why, or complete a different task based on critical evaluation in the future. Through use of the article they would not have learned to form their own evaluation. A learner must thus be assigned tasks that they can only complete with assistance but should not in the process be offered too much assistance. They should receive only enough help that they may handle the challenge, but not so much that the challenge is removed (Wass and Golding, 2014). The implication of this for analysing placement learning is that it highlights the importance of facilitators of placement learning building some awareness of the incoming students’ current capabilities to ensure the tasks they are set are the correct balance of challenging yet achievable. As the student progresses on placement, the nature of the work to be assigned must also progress in complexity in recognition of the fact that what was once challenging to the student will no longer be as difficult as they gradually progress through the ZPD for that task. When analysing placement learning experiences therefore, attention must be paid to both the nature of workplace tasks, and the nature of scaffolding the students are offered as they progress through the ZPD.

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To offer further insight into the process of learning in the ZPD, Tharpe and Galimore (1988) expanded on the concept by dividing it into a journey which requires four stages. In the process of passing through each of these stages of the ZPD, the individual learns to gradually transition from relying upon social regulation to self-regulation, ending with independent performance.

Figure 1: Genesis of a performance capacity: Progression through the ZPD and beyond (Tharpe and Gallimore, 1988, p35).

Stage one: Before an individual can function independently in a given task, they are first reliant on capable others to help regulate their learning. The nature of the level of help needed can vary as a function of multiple factors including the requirements of the task, and their current progression through their ZPD for that given activity. During the period in which the ZPD is newly formed for a given function, an individual will likely have a limited understanding of what is to be achieved, they will require guidance from more knowledgeable others, whether they be teachers, parents, friends, employers, they may receive directions or opportunities to model the correct behaviour. With time the learner comes to understand how elements of the activity in question relate to each other and what the performance means. The learner can then be assisted through means such as questions and feedback or scaffolding whereby the difficulty and nature of the task remains constant, but the level of assistance provided to enable the learner to carry out the task is gradually adjusted. Throughout the ongoing interaction, goals and sub-goals may shift in response to the educator’s assessments of the learner’s performance, and on the learner’s behalf, the goals may shift in response to their own

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growing intersubjectivity. Characteristic of stage one is the gradual decline in the ‘teacher’s’ responsibility for the task and a corresponding increase in the learner’s responsibility. In this gradual transfer of responsibility, the learner can begin to manage the structure of the task and the level of help they obtain, by directing the assistance they gain through asking questions. Stage one is complete once the responsibility for tailoring task assistance, transfer and performance is handed over to the learner.

It is possible to offer an example of learning in this stage by returning to Cope, Cuthbertson and Stoddart’s (2000) study of nurses on placement. During their placement, the nursing students were suggested to have been coached by mentors who demonstrated correct practice and provided support which was gradually withdrawn as the nurses became more competent. One means by which the students were supported was through the ongoing presence of mentors who were wiling to step in on procedures should anything unexpected happen. On other occasions the nursing students were offered chances to do a dry run in preparation for using the technique on a real patient. At other times support was offered in the format of pointers whereby a mentor would draw a student’s attention to a salient feature of the case which they had overlooked. With time, support such as this was gradually withdrawn to enable the students to gradually take more responsibility for their task as their competence and confidence grew.

Stage two: In the transition to stage two of the ZPD the learner has now begun to carry out their task without assistance from others, but importantly, the performance is still not fully automatic at this point. The learner in this stage uses self-directed speech to guide their own behaviour. That which at one point had to be vocalised by someone else, is now vocalised by the learner.

Stage three: Following the stage of self-regulation, the learner can be considered to have emerged out of the ZPD and into the developmental stage for that task. At this point the execution of the task is smooth and integrated. It has been internalised and is now automatic. Assistance is no longer required either from the self or others. Performance at this point has developed, it is fossilised. Stage four: Lifelong learning is a sequential process of transitioning from externally regulated assistance to self-assistance. At any given time, a person will be experiencing external regulation, self- regulation and automated processes. But once a certain task is mastered, the learner does not have to rely solely on internal mediation, they can still request help. During particularly difficult period a learner may once again seek out the assisting vocalisations of others. The relationship between external control and self-control can once again shift. Even the most competent of people can still benefit from the regulation of others to enhance or maintain their performance. But a person can also experience de-automisation, and this can occur so regularly that it forms the final stage of the ZPD.

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During a period of de-automisation what a person could once do, they no longer can. This may result from stress or changes in a person’s environment, physical trauma or emotional upheaval. For capacity to be restored the developmental process must recur. To begin, the learner must return to their prior self-regulation. Through talking oneself through a problem, often the capacity to perform will return. Where it does not, recalling the voice of someone who previously helped can also be effective. In some cases however, no amount of self-regulation will suffice. In this instance the learner will have to retreat to external regulation, so that they may re-proceed through assisted performance to self-regulation, to exit the ZPD to form a newly automised performance. The problem however is in gaining access to a patient, responsive ‘teacher’ from whom to gain assistance.

Tobbell and O’Donnell (2013b) argue relationships to be inextricably embedded in all learning and development, and as such the formation of interpersonal relationships, they argue, necessarily precedes the emergence of successful learning relationships. It is therefore important to attend to opportunities for relationship formation, and the quality of said relationships, as a prerequisite for learning relationships when examining the process of learning (Tobbell & O’Donnell, 2013b). Tobbell and O’Donnell argue that an essential aspect of the ZPD is that in emerges as a function of the interpersonal relationship between ‘teacher’ and learner. Citing criticisms put forth by Hoogsteder, Maier and Elbers (1998), they note where past efforts to determine the appropriate actions of teachers in assisting learners in passing through the ZPD have neglected to consider that learning involves the learner as much as it does the teacher, it is a collaborative endeavour that requires negotiation between the two. Tobbell and O’Donnell therefore argue that an effective learning relationship is one where both teacher and learner work together to enable learning, and in that sense the learning relationship is one which is distinct from other interpersonal relationships as its purpose is to enable the learner to pass through the ZPD. It is important to note however that though the process of learning in the ZPD must involve reciprocity on the part of both the teacher and learner this reciprocity is not inevitable. Some learners, Duphny and Duphny (2003) suggest, are not yet ready to accept help, or may try to ignore or limit the help offered by others. The expert in addition may not always want to pass on responsibility to the learner, they may seek to maintain control of the task even when the learner knows what is required (Duphny and Duphny, 2003). As such, Duphny and Duphny argue, good teaching/training requires a dynamic process involving an unfolding relationship between expert and learner. The guidance given must be relevant and valuable, and the increasing competence and independence of the learner must be valued and enhanced. As competence increases, the learner should progressively be viewed as an equal and thus learning should involve an evolution in the teacher-learner relationship.

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Synthesising the Theories

A synthesis of the central tenets of Communities of Practice Theory and Vygotsky’s ZPD enables the development of a sociocultural framework from which to understand the mechanisms of learning on placement. From this framework learning is situated in the context of participation in the social practice of the placement community. This participation is positioned as a fundamental process by which meaning is negotiated and identity is developed which in turn shapes learning and individual