Piaget, Kohlberg, Vygotsky — Study Notes
Overview
This topic covers three foundational theorists whose work shapes how we understand child development: **Jean Piaget** (cognitive development), **Lawrence Kohlberg** (moral development), and **Lev Vygotsky** (socio-cultural development). For Bihar TET, this is a high-yield area—expect 3–5 direct questions on stages, concepts, and classroom applications.
Understanding these theories helps teachers design age-appropriate instruction, scaffold learning effectively, and recognize that children think differently from adults. The exam tests your ability to match stages with age ranges, identify key concepts (like schema, ZPD, pre-conventional morality), and apply these theories to classroom situations. Memorize the stages, but also understand the underlying logic of each theory.
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Key Concepts
- **Piaget's Core Idea**: Children are active constructors of knowledge, not passive receivers. They build understanding through interaction with their environment.
- **Schema, Assimilation, Accommodation**: Schema is a mental framework. Assimilation fits new information into existing schemas; accommodation modifies schemas when new information doesn't fit.
- **Equilibration**: The drive to balance assimilation and accommodation—cognitive conflict leads to growth.
- **Kohlberg's Core Idea**: Moral reasoning develops in stages, moving from self-interest to universal ethical principles. He built on Piaget's work using moral dilemmas.
- **Vygotsky's Core Idea**: Learning is fundamentally social. Cognitive development happens through interaction with more knowledgeable others (MKO)—parents, teachers, peers.
- **Zone of Proximal Development (ZPD)**: The gap between what a child can do alone and what they can do with guidance. Effective teaching targets this zone.
- **Scaffolding**: Temporary support provided by teachers/adults that is gradually removed as the child gains competence.
- **Language and Thought (Vygotsky)**: Language is the primary tool of cognitive development. Private speech (talking to oneself) helps children regulate thinking.
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Key Facts and Definitions
| Theorist | Focus | Key Term | Definition | |----------|-------|----------|------------| | Piaget | Cognitive | Schema | Mental structure for organizing information | | Piaget | Cognitive | Conservation | Understanding that quantity remains same despite appearance change | | Piaget | Cognitive | Object Permanence | Knowing objects exist even when not visible (Sensorimotor) | | Piaget | Cognitive | Egocentrism | Inability to see others' perspectives (Preoperational) | | Kohlberg | Moral | Moral Dilemma | Hypothetical situation to assess moral reasoning (e.g., Heinz dilemma) | | Vygotsky | Socio-cultural | ZPD | Zone of Proximal Development | | Vygotsky | Socio-cultural | MKO | More Knowledgeable Other | | Vygotsky | Socio-cultural | Private Speech | Self-directed talk that guides behavior |