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Piaget's Theory
The Preoperational Stage
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Vygotsky's Theory
Sociocultural Theory
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Limitations of Preoperational Thought
- -Cannot perform mental operations
- -Egocentrism
- -Animistic Thinking
- -Lack hierarchical classification
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Evaluation of Piaget
- -Many experts refute preoperational stage idea
- -Piaget's stages are too strict
- -Need flexible stage approach
- -Piaget assumes abrupt change
- -Most experts believe change is gradual
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Evaluation of Vygotsky's Theory
- -Helps explain cultural diversity in cognition
- -Emphasizes importance of teaching
- -Focus on language deemphasizes observation, other learning methods
- -Says little about biological contributions to cognition
- -Vague in explanation of change
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Preoperational stage
Spans from 2 to 7 years. The most obvious change is an extraordinary increase in representational or symbolic activity.
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Sociodramatic play
Make believe with others that is under way around age 2 and increases rapidly during the next few years.
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Dual Representation
Viewing a symbolic object as both an object in its own right and a symbol.
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Egocentrism
Failure to distinguish the symbolic viewpoints of others from one's own
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Animistic thinking
the belief that inanimate objects have lifelike qualities, such as thoughts, wishes, feelings and intentions.
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Centration
Focus on one aspect of a situation, neglecting other important features.
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Irreversibility
Inability to mentally go through a series of steps in a problem and then reverse direction, returning to the starting poing
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Hierachical Classification
Organization of objects into classes and subclasses on the basis of similarities and differences.
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Private speech
Self-directed speech that children use to plan and guide their own behavior.
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Scaffolding
Adjusting the support offered during a teaching session to fit the child's current level of performance
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Guided Participation
A broader concept than scaffolding. Refers to shared endeavors between more expert and less expert participants, without specifying the precise features of communication.
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Metacognition
"Thinking about thought" A coherent set of ideas about mental activities
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Ordinality
Order relationships between quantities
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Cardinality
The last number in a counting sequence indicates the quantity of items in a set
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