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								Preoperational intelligence									 | 
								Piaget's term for cognitive development between the ages of about 2 and 6; it includes language and imagination (which involves symbolic thought), but logical, operational thinking is not yet possible.									 | 
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								Centration									 | 
								A characteristic of preoperational thought in which a young child focuses (centers) on one idea, excluding all others. and example is a child thinks their dad is a father, not a brother because of his role in the family									 | 
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								Egocentrism									 | 
								Piaget's term for children's tendency to think about the world entirely from their own personal perspective. an example is a child giving their mother a present they would enjoy, but the parent may not.									 | 
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								Focus on appearance									 | 
								A characteristic of preoperational though in which a young child ignores all attributes that are not apparent.  an example is a girl with short hair is thought to be a boy									 | 
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								Static reasoning									 | 
								A characteristic of preoperational though in which a young child thinks that nothing changes.  whatever is now has always been and will be.									 | 
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								Irreversibility									 | 
								A characteristic of preoperational thought in which a young child thinks that nothing can be undone.  a thing cannot be restored to the way it was before a change occured.									 | 
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								Conservation									 | 
								The principle that the amount of a substance remains the same (i.e. is conserved) when its appearance changes.									 | 
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								Animism									 | 
								The belief that natural objects and phenomena are alive									 | 
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								Guided participation									 | 
								The process by which people learn from others who guide their experiences and explorations									 | 
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								Zone of proximal development									 | 
								Vygotsky's term for the skills - cognitive as well as physical - that a person can exercise only with assistance, not yet independently									 | 
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								Scaffolding									 | 
								 temporary support that is tailored to a learner's needs and abilities and aimed at helping the learner master the next task in a given learning process									 | 
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								Private speech									 | 
								The internal dialogue that occurs when people talk to themselves (either silently or out loud).									 | 
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								Social meditation									 | 
								Human interaction that expands and advances understanding, often through words that one person uses to explain something to another.									 | 
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								Theory-theory									 | 
								The idea that children attempt to explain everything they see and hear by constructing theories									 | 
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								Theory of mind									 | 
								A person's theory of what other people might be thinking.  in order to have a theory of mind, children must realize that other people are not necissarily thinking the same thoughts that they themselves are. that realization is seldom possible before age 4.									 |