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Preoperational Stage (2-7 years). Explosion in use of mental symbols Piaget focused mainly on deficiencies in thought Children are capable of thinking about the past Can manipulate mental symbols Use language. Language and Cognition.
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Preoperational Stage (2-7 years) • Explosion in use of mental symbols • Piaget focused mainly on deficiencies in thought • Children are capable of thinking about the past • Can manipulate mental symbols • Use language
Language and Cognition • Does language promote cognition, or does cognition promote language? • Most developmentalists thought that language promotes cognition. • Piaget thought that cognition came first and guided the development of language.
Substages of Preoperational thought • Preconceptual (2-4 years) • Intuitive (4-7 years)
Preconceptual substage • Characterized by three traits • Animism: attributing lifelike qualities to inanimate objects • Precausal or transductive reasoning: assuming that correlations represent causation • Egocentrism: Tendency to view world from own perspective
Intuitive substage • An extension of preconceptual thought, but children are somewhat less egocentric and better able to classify objects on the basis of size, shape, and color • Thinking is called “intuitive” because a child’s understanding of objects is still based on their most salient perceptual feature (the way they appear to be) rather than logical properties.
Conservation Error (preoperational stage) • Conservation: inability to recognize that properties of an object or substance don’t change when the appearance is altered in a superficial way. Two reasons for this: • Compensation: can’t focus on more than one aspect of a problem at a time • Reversibility: they can’t mentally undo, or reverse, an action
Research about preoperational stage • Egocentrism: Piaget badly overestimated this error • Animism: not as common as Piaget thought; more likely to occur with objectst hat move • Precausal reasoning: children aren’t as precausal as Piaget thought • Conservation: Piaget thought it couldn’t be taught, but it can • Piaget’s problems were too complex, and he required verbal justifications, which are hard.
Concrete Operations (7-11) • Children can start justifying their answers at this stage • Can apply knowledge of concrete schemas only to those things that are real or logical to them • Can mentally represent series of actions and can draw accurate maps
Concepts understood by concrete operators • Relational logic: simultaneously compare two objects on a dimension such as length • Transitivity: If A is bigger than B and B is bigger than C, then A is bigger than C (as long as it’s with concrete objects) • Seriation: ability to mentally arrange items along a quantifiable dimension such as height/weight • Can’t really do algebra at this stage because they can’t deal with abstract ideas
Piaget’s view of education • Children should be formally educated starting around age 6-7 • Children learn best by constructing their own knowledge • Teachers should back off and let kids learn at own pace, with little intervention • Spend less time lecturing, more time with “hands-on” activities • Believed in discovery-based education
Goal of education (Piaget) • To produce creative people who could think for themselves, not recite facts based on rote memorization
Vygotsky’s view • Agreed that kids should be actively involved in learning • Placed less emphasis on discovery-based learning and more emphasis on collaboration with teachers and peers • Child can’t master tasks on his own. • Recall the terms “scaffolding,” and “zone of proximal and current development.”
Formal operations (11-12 and up) • Mental actions are performed on ideas and propositions • Can reason about hypothetical and abstract concepts • Can easily engage in systematic problem-solving and creative tasks
Personal and social implications of formal thought • Can consider many possible solutions to abstract problems; can function like scientists • Allows adolescent to create identity for herself and advance in moral reasoning • Allows one to think about abstract questions such as “What freedom means” and “What would have happened if the South had won the Civil War?”
Negative side of formal operations • Adolescents get very idealistic and become frustrated with imperfect world • Creates frustration with parents, government, and other authority figures; may be responsible for the “generation gap” • Can become almost as egocentric as children in the preoperational stage
Egocentrism in formal operations (David Elkind) • Imaginary audience: feeling that you’re constantly on stage; everyone is critical of you and is looking at you • Personal fable: belief in the uniqueness of one’s self and one’s thinking; no one’s ever felt the way you do; leads to feelings of immortality
Is egocentrism really related to development of formal operations? • Elkind thought both kinds of egocentrism should increase dramatically from the ages of 13-15 and end between 15-16 as the switch from concrete to formal operations became complete. • Data not consistent with this. Egocentrism is more common in 13-15 year olds, but most are not at formal operations during this age range. • Egocentrism is probably related not to formal operational thought but to adolescent’s new social-perspective taking abilities.
Does everyone attain formal operational thought? • No. Some researchers have found that only 33% of adults function consistently at formal operational thought. • Adults may be especially deficient in math and logic; may be because they’re not motivated or interested in those topics. • College students may show formal operations in their major but not in other studies. • Some may reach “postformal thought.” Found especially in grad students and professors.