I want to explore the strengths and weaknesses of four 'learning theories' as explanations of how people learn. See Comparing Pedagogical Stances for the defining elements of each of these theories.
Before I start I want to make clear that the answer to the question 'Which theory best explains how people learn?' is different from the question 'Which theory should a school adopt as its pedagogical stance?'. Different people/schools will have different values and beliefs, and one has to start there.
Traditional (Behaviourism and Information Processing)
The Traditional theory has two things in its favour.
- First, it is thrifty. The claim that behaviour is shaped by reinforcement and punishment is empirically robust and replicable. Skinner's work, whatever its limitations, established something real about how habits form and how procedural skills are acquired through practice and feedback.
- Second, the information processing element offers a serviceable account of memory: the distinction between working and long-term memory, the role of retrieval practice, the importance of attention. These are not trivial insights.
The problems, however, are serious.
- The most fundamental is the empty vessel assumption. Decades of subsequent research have established, beyond reasonable doubt, that learners always interpret new information through existing frameworks. There is no such thing as a learner who arrives without prior knowledge, expectations, and assumptions. A theory built on the premise that they do starts in the wrong place.
- A second, related problem is that Traditional theory cannot explain why learning so often fails to transfer across contexts. A Traditional view states that learning is the acquisition of stable responses to stimuli, and meaning is stable across contexts and learners. If this is the case then transfer should be relatively straightforward. Empirically, it is not. The Traditional view offers no account of why the same knowledge that functions in one setting fails to operate in another. This is a damaging gap.
- Third, the theory cannot account for creativity, novel problem-solving, or the generation of knowledge that has not previously been encountered in practice. These are central features of human learning, and the theory is silent on them.
The insights into how human memory works are important, but not without some critics (e.g. Claxton, 2021).
Individual Constructivist
Individual constructivism is an improvement on the Traditional theory.
- The core insight that learners actively construct understanding rather than passively receive it is well supported and has reshaped how we think about teaching.
- The evidence that prior knowledge shapes how learners interpret new information is robust.
- Cognitive conflict as a mechanism for learning (disequilibrium demanding reorganisation) has explanatory power on phenomena that behaviourism cannot touch:
- why misconceptions persist,
- why learners resist certain kinds of new information,
- why the same input produces different outcomes for different people.
The weaknesses are, nonetheless, significant.
- Piaget's stage theory has been substantially undermined. Children can demonstrate abstract reasoning considerably earlier than Piaget predicted, when tasks are presented in meaningful and familiar contexts. This is not a minor empirical quibble; it strikes at the developmental architecture of the theory.
- More fundamentally, individual constructivism treats learning as an individual process. Social interaction appears in Piaget's account only as a trigger for cognitive conflict - the other person is essentially a source of perturbation, not a genuine participant in the construction of meaning. This underestimates the social dimension of learning.
- The theory also retains the assumption that abstract knowledge, once constructed, should be transferable across contexts. The evidence does not support this. Lave's (1988) studies of mathematics in everyday life - people performing sophisticated calculations while shopping who could not solve formally equivalent problems in school settings - constitute a powerful empirical challenge that individual constructivism cannot readily address.
Social Constructivist
The social constructivist 'learning theory' deepens individual constructivism in important ways:
- The Zone of Proximal Development (ZPD) is genuinely powerful: the evidence that interaction with a more knowledgeable other enables learners to achieve what they could not achieve alone is robust and widely replicated.
- The account of language as a mediator of thought - not merely a communication tool but a shaper of cognition - is well supported by subsequent work and represents a significant theoretical advance.
- Social constructivism is also more dynamic than Individual Constructivism on learning potential: it is not limited by biological developmental stage but by experience and the quality of scaffolded interaction, which better matches what we observe in practice.
However:
- In the social constructivist 'learning theory', learners collaborate to build a shared model, and each then takes a copy of that shared model away for future use. The knowledge, ultimately, is individually held. This retains the mental model framework of individual constructivism while adding a social layer; it does not fundamentally escape it.
- The broader community, cultural practices, and questions of identity and belonging remain underemphasised.
- The ZPD, while intuitively compelling, is also notoriously difficult to operationalise reliably. Defining the boundary of what a learner can achieve with support is harder in practice than the concept implies.
Sociocultural
The sociocultural 'learning theory' is the most complete. Its strengths are cumulative rather than isolated.
- To begin with, it directly resolves the transfer problem - the most damaging empirical challenge facing the other three theories. Where behaviourism and constructivism struggle to explain why learning does not transfer reliably across contexts, sociocultural theory predicts this as a baseline expectation: learning is always situated within particular communities and practices, and knowledge that has been developed in one community will not automatically function in another. The failure of transfer is not a puzzle; it is what the theory would lead us to expect.
- Second, the account of motivation - learners are driven by the desire to belong to communities and to be recognised as valued members of them - is consistent with evidence on self-determination and identity-based motivation in ways that neither extrinsic reward nor abstract curiosity fully captures.
- Third, sociocultural theory accounts for tacit knowledge: the knowledge embedded in practice that cannot be fully made explicit. This is a real phenomenon - expert practitioners know more than they can say - and it is one the other theories largely cannot handle.
- Fourth, the identity dimension of learning (the shift from being to becoming a mathematician, a doctor, a musician) is empirically observable across many domains and is a central feature of this account. The other theories treat learning primarily as a matter of knowing more; sociocultural theory recognises that it is equally a matter of becoming someone different.
The weaknesses are real but do not undermine the core account.
- The theory says relatively little about the precise mechanisms of conceptual change — how a learner moves from novice to expert participation is described in broad terms but less precisely specified than, for instance, Piaget's account of cognitive conflict.
- Critics also argue that the emphasis on social and community processes underemphasises what is happening in the individual learner's mind. This is a fair point, though it may be better read as a deliberate theoretical commitment than as a gap: if cognition is always already social, then looking for it in individual heads is to look in the wrong place.
References
Claxton. G. (2021). The Future of Teaching and the myths that hold it back. Routledge.
Lave, J. (1988). Cognition in Practice: Mind, Mathematics and Culture in Everyday Life. Cambridge University Press.