Developmental psychologist Lev Vygotsky defined what the person or a student can do — or the problems they can solve — as three different stages:
- What a student can do on their own, working independently or without anyone’s help.
- What the student can do with the help of someone.
- What it is beyond the student’s reach even if helped by someone else.
He called the second stage the Zone of Proximal Development (ZPD) which had, as said, two limits: the lower limit, which was set by the maximum level of independent performance, and the upper limit, the maximum level of additional responsibility the student can accept with the assistance of an able instructor. But
Vygotsky believed that learning shouldn’t follow development, but rather should lead it. A student should constantly be reaching slightly beyond their capabilities rather than working within them (Jo Turner-Attwell, 2009).
This reaching beyond one’s capabilities can be pictured as the student entering their Zone of Proximal Development. And this exploration beyond one’s capabilities is not to be made alone, but with an instructor to help in the way. Vygotsky called this instructor the More Knowledgeable Other (MKO), the role of which is to help the student throughout their ZPD by scaffolding the path they have to follow to learn how to solve new problems.
The Personal Learning Environment and the Zone of Proximal Development: a static approach
The Personal Learning Environment could be understood both as the Zone of Proximal Development and the full set of More Knowledgeable Others, understanding by More Knowledgeable Others not only as people of flesh and blood, but any kind of knowledge construct that we can imagine: from the more typical teachers and open educational resources to all sorts of digital content including messages in fora, multimedia files and so on. As Graham Attwell (2010) puts it,
the MKO can also be viewed as a learning object or social software which embodies and mediates learning at higher levels of knowledge about the topic being learned than the learner presently possesses.
But if we really believe that the Personal Learning Environment is much more than a tool but a learning philosophy, there is much more than we can say in the crossroads of the PLE and the ZPD. The Personal Learning Environment is transferring some — or most — of the responsibility of somebody’s learning path from the instructor (back) to the learner. And, in doing so, it also implies regaining the control of one’s own learning path and its design. In relationship with the Zone of Proximal Development:
The role of a Personal Learning Environment may be not only that of a tool to provide access to ‘More Knowledgeable Others’ but as part of a system to allow learners to link learning to performance in practice, though work processes. And taking a wider view of artefacts as including information or knowledge accessed through a PLE, reflection on action or performance may in turn generate new artefacts for others to use within a ZPD (Graham Attwell, 2010).
The Personal Learning Environment and the Zone of Proximal Development: a dynamic approach
All these reflections stand for a static approach to the Zone of Proximal Development, that is, at a given time and at a given place. Indeed, in Vygotsky’s time, the boundaries of the ZPD were indeed very physical: the evolution of a wood carver’s craftsmanship was bound by the availability of master craftsmen and the possibility to be an apprentice in a nearby workshop.
But Information and Communication Technologies have capsized the whole previous scenario and, thus, the relationship between Personal Learning Environments and the Zone of Proximal Development should be approached not only within the state-of-things prior to the Internet, but also in how this state-of-things is shifting forward.
Thus, one way to look at the ZPD-PLE relationship is seeing the PLE as a way to build, fill in with or reach out for the tools and people that will help a learner through the ZPD. Another way to look at the ZPD-PLE relationship is how the PLE (re)defines the ZPD itself, continuously, dynamically.
Unlike in a world without digital access to information and communications, in a digital world content and people are available all at once. Maximalistically speaking, a PLE can be conformed by virtually everything that exists out in the cyberspace. If virtually everything is at reach, virtually everything can be understood as the more knowledgeable other. With a full, total, comprehensive access to the more knowledgeable other there virtually is no upper limit of the Zone of Proximal Development, there virtually is no level of problem solving that is unreachable for the student.
The PLE, has then two roles in relationship with the ZPD:
- It helps in building the inner structure of the ZPD, its components.
- It helps in building the outer structure of the ZPD, its boundaries.
There is a sort of corollary to the previous second statement. In Vygotsky’s time, learning — and hence the ZPD — was sort of linear: woodcarving apprentices would move “up” to a new master craftsman once they had mastered some skills themselves with the help of their previous/actual master. Progress would end when there were no more master craftsmen around whom to learn from. On the other hand, learning face to face with a human more knowledgeable other meant not only that one had to “use them up” but that one could not “consume” any other more knowledgeable others: learning was unidirectional, linear.
When MKOs are conformed by all kind of tacit and explicit knowledge constructs in one’s PLE, there is no way of (a) “using them up” and (b) not being able to move in parallel with more than one more knowledgeable other. We can then think of the PLE both as the biggest ZPD possible, or as the overlapping of different snapshots of a PLE that evolves “fractalically”, multidirectionally, on time, on demand, until it (potentially) covers the whole cyberlandscape.
Personal Learning Environments and the revolution of Vygotsky’s Zone of Proximal Development
[Click to enlarge]
The future of educators?
One of the conclusions that one might infer from the previous statements that they are proof of the postulates from thinkers like Syemour Papert, Roger Schank or Nicholas Negroponte: in a digital world, all you have to do is build a PLE as big as the biggest imaginable ZPD. Imagine all you need to learn and it already is out there.
I personally do not agree with that thesis. If PLEs can be understood from a dynamic point of view and work well for all your life-long learning and corresponding ZPDs, it is also true that, from a static point of view, they need to be built to scaffold your way through a specific ZPD. And it is in this scaffolding that help is required.
In other words, and summing up, I believe that it is likely that we see a decreasing need of instructors as more knowledgeable others in order to learn something, but an increasing need of instructors as more knowledgeable others in order to learn how to learn something. With Personal Learning Environments to cover the ground of one’s Zone of Personal Development, learning how to learn, how to design one’s own learning process may be more relevant than ever and require more help from third parties. This is, I think, the most promising future of teaching today.
UPDATE: A more elaborated version of this article was published in an academic journal as it appears below. Follow the link for a full-text download: