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Jean Piaget's cognitive developmental theory describes four major stages from birth through puberty, the last of which starts at 12 years and has no terminating age: [11] Sensorimotor: (birth to 2 years), Preoperations: (2 to 7 years), Concrete operations: (7 to 11 years), and Formal Operations: (from 12 years). Each stage has at least two ...
Erik Erikson was a prominent developmental psychologist, who produced a psychoanalytical theory of psychosocial behaviour, showing 8 stages of development from infancy to adulthood. At each stage the individual is set with a potential conflict, and either success or failure at each point will go on to determine the outcome of the psychological ...
Vygotsky believed that a child's development should be examined during problem-solving activities. [28] Unlike Piaget, he claimed that timely and sensitive intervention by adults when a child is on the edge of learning a new task (called the "zone of proximal development") could help children learn new tasks.
Jean Piaget was the first psychologist and philosopher to brand this type of study as "cognitive development". [31] Other researchers, in multiple disciplines, had studied development in children before, but Piaget is often credited as being the first one to make a systematic study of cognitive development and gave it its name.
Vygotsky, a Russian theorist, proposed the sociocultural theory of child development. During the 1920s–1930s, while Piaget was developing his own theory, Vygotsky was an active scholar and at that time his theory was said to be "recent" because it was translated out of Russian and began influencing Western thinking. [9]
Lev Vygotsky (1896–1934) The concept of the zone of proximal development was originally developed by Vygotsky to argue against the use of academic, knowledge-based tests as a means to gauge students' intelligence. He also created ZPD to further develop Jean Piaget's theory of children being lone and autonomous learners. [4]
It was originated by the Swiss developmental psychologist Jean Piaget (1896–1980). The theory deals with the nature of knowledge itself and how humans gradually come to acquire, construct, and use it. [1] Piaget's theory is mainly known as a developmental stage theory.
Erikson's stages of psychosocial development, as articulated in the second half of the 20th century by Erik Erikson in collaboration with Joan Erikson, [1] is a comprehensive psychoanalytic theory that identifies a series of eight stages that a healthy developing individual should pass through from infancy to late adulthood.