Constructivism (Piaget/Vygotsky)

Constructivism holds that knowledge is actively constructed by learners, not transmitted from teacher. Two major strands: Piaget's cognitive constructivism—learners build knowledge through assimilation (fitting new info into schemas) and accommodation (restructuring schemas). Vygotsky's social constructivism—learning is co-constructed through dialogue and cultural tools (language, notation, technology). Vygotsky's Zone of Proximal Development describes the gap between solo and guided capability—the optimal learning zone. Together: lecture alone is insufficient (learners must construct) and isolated study has limits (social interaction scaffolds construction).

When to use it

When designing any learning experience, when learners passively receive information without retention, when evaluating why training isn't producing behavior change, or when choosing between instructional approaches for a given learning goal.

How it can help

This fundamentally changes learning experience design. Instead of presenting information, design activities where learners construct understanding. Practically: (1) replace lectures with problems requiring learners to build solutions, (2) create collaborative environments for knowledge co-construction, (3) provide scaffolding gradually increasing independence, (4) design assessments requiring construction (projects, explanations) not reproduction. For knowledge workers designing training: if participants aren't actively doing something with information, they're probably not learning it.