1. COGNITIVE DEVELOPMENT - PIAGETIAN THEORY

    1. Assumptions
      1. Stages/Discontinuous Development
      2. Emphasis on Qualitative Differences
      3. Strong Interaction between Biology and Environment
      4. Active Role - " Constructs Knowledge"

    2. Central Concepts
      1. Scheme - "Ways of knowing"
      2. Equilibrium - "Seeking balance between knowing (K) and experience (E)
      3. Adaptation - "Change to achieve balance"
        1. Assimilation - "Changing E to fit K"
        2. Accommodation - "Changing K to fit E"

    3. Sensorimotor (birth - 2 years)
      1. Physical ways of knowing (schemes)
      2. Reflexes to Mental Representation
      3. Problem Solving
      4. Deferred Imitation

    4. Preoperations (2 - 7 years) or Semi-Logical Thought
      1. Conservation (Number, Length, Quantity)
      2. Preoperational Schemes are:
        1. Centrated/Egocentric
        2. Nonreversible
        3. Unidimensional
        4. Reasoning influenced by "sight" not by "knowing".

    5. Concrete Operations (7 - 11 years) or Logical Thought
      1. Conservation
      2. Concrete Operational Schemes are:
        1. Decentrated/Multiple Perspectives
        2. Reversible
        3. Multi-Dimensional/Co-ordinated
        4. Reasoning influenced by knowing

    6. Evaluation of Piagetian Theory
      1. Competence vs. Performance
      2. Insufficient Emphases on Cultural, Social & Emotional Factors