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--- learning_theories:stage_theory_of_cognitive_development [2011/04/11 14:12]
jpetrovic [Criticism]
+++ learning_theories:stage_theory_of_cognitive_development [2011/04/12 10:38]
jpetrovic [What is stage theory of cognitive development?]
@@ Line 11: / Line 11: @@
 In 1947((Piaget, J. The Psychology of Intelligence. 1947.)) Piaget has first introduced his **four stages** of human cognitive development: sensorimotor, preoperational, concrete, and formal, as they are described below. Ages describing when which stage occurs are the average values.
-  * **Sensorimotor period** (birth to 2 years): In this stage cognitive system of an infant is limited to **motor reflexes**, but also some more complex procedures built on those reflexes. Infant interacts with the environment, **learns to understand the world** and is acquiring the capacity for internalized thinking. Learning takes place through **absorbing into the existing schema** and accommodating when schema change is required.
+  * **Sensorimotor period** (birth to 2 years): In this stage cognitive system of an infant is limited to **motor reflexes**, but also some more complex procedures built on those reflexes. Infant interacts with the environment, **learns to understand the world** and is acquiring the capacity for internalized thinking. Learning takes place through **absorbing into the existing schema** and accommodating when schema change is required.((Piaget also uses concepts of schema and schemata, later expanded by Anderson. See: [[learning_theories:Schema theory]]))
   * **Preoperational period** (2 to 7 years): Children now **develop language** and **mental imagery skills**, but still cannot conceptualize abstractly and don't have sense of time. Intelligence becomes less egocentric and more socialized. A child can now think about events and things that aren't present in the moment of speaking. He can **see the world** only from **his perspective** and assumes other do so as well. Teaching a child in this stage must take into account his not fully understand concepts of time phenomenon.
-  * **Concrete-operational period** (7 to 11 years): Children in this stage of development are able to analyze more perspectives simultaneously. Much of learning if performed through assimilation. Although they can **understand concrete problems** and develop reasoning skills, according to Piaget they still **cannot analyze abstract problems** and all of their logical consequences.
+  * **Concrete-operational period** (7 to 11 years): Children in this stage of development are able to analyze more perspectives simultaneously. Much of learning if performed through assimilation. Although they can **understand concrete problems** and develop reasoning skills, according to Piaget they still cannot analyze abstract problems and all of their logical consequences.
-  * **Formal-operational period** (11 to adolescence) : Piaget claims that the **final form of cognition** is reached in this stage. Abstract thinking capabilities in this stage are very similar to ones of adults. Individual at this stage is also capable of **hypothetical and deductive** but also **reflective and analytical reasoning skills**. This is supposed to be the final stage of cognitive development and although the knowledge base of an individual is still to be expanded, his thinking capabilities are now as strong as they would get.
+  * **Formal-operational period** (11 to adolescence) : Piaget claims that the final form of cognition is reached in this stage. Abstract thinking capabilities in this stage are very similar to ones of adults. Individual at this stage is also capable of **hypothetical and deductive** but also **reflective and analytical reasoning skills**. This is supposed to be the final stage of cognitive development and although the knowledge base of an individual is still to be expanded, his thinking capabilities are now as strong as they would get.
+The importance of the Piaget's stage model are the **constrains** that stage of cognitive development sets **on learning**. These constrains mean that what can be learned depends on the current developmental stage. One should be taught to apply developed cognitive structures to new material, but to learn new strategies first the related cognitive structure has to evolve.
-((Piaget also uses concepts of schema and schemata, later expanded by Anderson. See: [[learning_theories:Schema theory]]))
+Piaget was also concerned with the instructional methodology for children where he was a proponent of:
+  * Naturalism - a belief that **natural learning is always the best learning**. Origins of this idea can be traced back to as far back as [[http://en.wikipedia.org/wiki/Jean-Jacques_Rousseau|Jean Jacques Rousseau]] and it means that the best learning occurs through **everyday processes** and **spontaneous acquisition** of operations or concepts through normal experience. This idea seemed intuitively it was at the time accepted even without experimental validation.
+  * Constructivism - Piaget was a constructivist theorist suggesting children **construct** their knowledge through **interaction of their biological predispositions with their experience**. **Active self-discovery** of rules underlying current concepts and outcomes is the key to learning.
 ===== What is the practical meaning of stage theory of cognitive development? =====
-The importance of the Piaget's stage model are the constrains that stage of cognitive development sets on learning. These constrains mean that what can be learned depends on the current developmental stage. One should be taught to apply developed cognitive structures to new material, but to learn new strategies first the related cognitive structure has to evolve.
 Piaget's theory suggests that in order to make learning effective, learner's stage of the cognitive development needs to be taken into account. General suggestions for adopting teaching methods to the four stages of development are following:
@@ Line 41: / Line 42: @@
 ===== Criticism =====
-One of the criticisms of Piaget's theory lies on the fact that nor him or coworkers didn't leave an instrument for diagnosing child's current stage of cognitive development.
+A common criticism of Piaget's theory lies on the fact that nor him or coworkers didn't leave an instrument for diagnosing child's current stage of cognitive development. Still, as a border between preoperational period and operational period Piaget suggested **conservation experiments**. For example, two equal glasses filled with liquid are presented to a child, after which liquid out of one glass is poured into a third, more narrow glass. The child is then asked which glass holds more liquid. Only a child in the concrete- or formal-operational  period should realize both glasses hold equal amount of liquid. According to Piaget's theory, these stage differences cannot be overcome using any kind of training.
-Still, as a border between preoperational period and operational period Piaget suggested conservation experiments. For example, two equal glasses filled with liquid are presented to a child, after which liquid out of one glass is poured into a third, more narrow glass. The child is then asked which glass holds more liquid. Only a child in the concrete- or formal-operational  period should realize both glasses hold equal amount of liquid. According to Piaget's theory, these stage differences cannot be overcome using any kind of training.
+But a number of experiments((For details see: [[http://www.scribd.com/doc/41760294/Educational-Psychology-a-Century-of-Contributions|Zimmerman, Barry J., and Dale H. Schunk. Educational psychology: a century of contributions. Routledge, 2003.]])) have proved the opposite. The child's **ability to learn** (at least for conservation concepts) **is not so strictly defined by his current stage of cognitive development** in accordance with Piaget's theory.
-But a number of experiments((For details see: [[http://www.scribd.com/doc/41760294/Educational-Psychology-a-Century-of-Contributions|Zimmerman, Barry J., and Dale H. Schunk. Educational psychology: a century of contributions. Routledge, 2003.]])) have proved the opposite. The children's ability to learn is not so strictly defined by their current stage in accordance with Piaget's theory.
+As the result criticisms of Piaget usually emphasized that,
-As the result, Piaget's development stages were often considered to be **oversimplified** or **underestimating abilities of children**. Critics also sometimes considered that his **experiments weren't designed carefully enough** to exclude other explanations, that he offered to **little evidence** for his theory and that he didn't address important questions like **social and motivational influences** on cognitive development.
+  * his development stages were often considered to be **oversimplified** or **underestimating abilities of children**
+  * his **experiments** are considered **not to be designed carefully enough** to exclude other explanations,
+  * he offered to **little evidence** for his theory, and that
+  * he didn't address important questions like **social and motivational influences** on cognitive development.
 ===== Keywords and most important names =====

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