Piaget believed that there are three fundamental processes which contributed to the child’s cognitive development. These are; assimilation, accommodation, and equilibrium. Assimilation involves the ‘the process of fitting aspects of the environment into existing schemas.’ (Book 1, Ch. 2, Pg. 65) Assimilation and accommodation are two processes which Piaget believed we use throughout life as we adapt to new situation, in the quest to attain equilibrium.
Lev Vygotsky (1896- 1934) a Russian Psychologist took a social constructivists view to child development and proposed that it is social interaction that profoundly influences cognitive development. A social constructivist approach to child development is one where it is believed that understanding is actively constructed through social interactions. Vygotsky theorized that knowledge is socially constructed between a child and a more able other, rather than passively received as within Piaget’s theory. Vygotsky also believed that children have two areas of development, their current level of development and the zone of proximal development. Vygotsky describes the zone of proximal development as ‘the distance between the actual development level as determined by independent problem solving and the level of potential development as determined through problem solving under adult guidance or in collaboration with more capable peers’ . (Book 1, Ch.2, Pg.73) In other words a more able other provides guidance which enables the child to achieve a task that they could not have accomplished without support. Vygotsky refers to the process which takes place between the child and a ‘more able other’ during learning in the Zone of Proximal development as scaffolding. Basically the Zone of Proximal Development is the gap between what is known and what can be known. An example of this scaffolding in action would be; when assisting one of the children to use a knife to cut up the banana the practitioner hand over hand guided the child and then gradually after a few cuts decreased the assistance until the child is eventually cutting the banana independently.
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Piaget and Vygotsky both agreed that children are active learners who construct knowledge, although Vygotsky placed more importance on the effects that social interaction have on the child’s cognitive development than Piaget. Piaget theorized that children learn independently through experimentation with the environment, that cognitive development is something which occurs naturally through biologically regulated changes (Piaget’s stages of cognitive development). Piaget does acknowledge social interaction as being valuable in the form of peer contact for it’s ability to assist a child to develop socio-cognitive conflict, which he believes enables the child to ‘decentre’ to move out of their egocentric viewpoint and the ability to take on the perspectives of others. Vygotsky on the other hand proposed that socialization is absolutely necessary for a child’s cognitive development. He theorized that it is through social interaction that children are able to learn important cultural tools such as language, writing, and social rule and that it is through the internalisation of these cultural ‘tools’ (skills) that provides the child with the ability to attain a higher level of thinking.
Piaget’s stage theory of cognitive development and his beliefs regarding social interaction has been criticised by his peers, notable Donaldson (1978) who argued that children are far more capable then Piaget originally assumed. The main criticism of Piaget’s research is the lack of consideration that he gave to the social context that his experiments were presented in (they did not make human sense to the children). It has been suggested that children may take into account the social aspects of a task before they state their response to a question, inevitable altering their answer and skewing the results. For example, in the conservation tasks Piaget asked the questions regarding the child’s opinion of the items once to confirm they were the same and then again to see if the child believed a change had taken place. This can be seen video band 1as the researcher asks “Does this one have more play dough, does this one have more play dough or do they have the same amount? Child responds: “They have the same.” Researcher: (rolls one ball of play dough out) “Now, does this one have more play dough, does this one have more play dough or do they have the same amount?” (Video band 1, 23:36) Donaldson believed that by an adult asking a question twice there may be the possibility that the child may presume the adult requires a different answer the second time. To prove his assumption Donaldson redesigned Piaget’s original experiments but including a reason for re-asking the question, (a naughty teddy fiddling with counters for example) this added a human context to the activities. Donaldson’s findings actually support Vygotsky’s theory of social learning as it centers on the notion that social context is a variable in the development of children's cognitive abilities
Piaget and Vygotsky opinions differ regarding the importance social interaction plays in the area of speech and thought. Piaget believed that cognitive development precedes social speech, that speech is just a mental representation of intelligence and plays no significant part in a child’s acquisition of cognitive development. Piaget drew this conclusion through his observations of young children talking aloud to themselves while exploring their environment. He named this use of language egocentric speech. Piaget saw this egocentric speech falling within the pre-operational stage of cognitive development. He believes all children are initially egocentric (their understanding revolves around their own single perception of the world) during this stage. He did not believe that this form of speech played any significant role in the child’s cognitive development.
In comparison, Vygotsky believed that cognitive development is dependant of a child acquiring social/external speech. Vygotsky saw speech as having two functions; internal and external speech. He believed that children need to initially learn to communicate (externally) through socialization and that it is not until social language is acquired that children have the ability of internal speech (verbal thought). Vygotsky carried out observations and experiments to help understand the role that egocentric speech plays within the area of problem solving. He used some of the same experiments as Piaget, although he added a new angle to Piaget’s original experiments by including frustrations and difficulties. He concluded from this research that egocentric speech (thinking aloud) increased when a child became frustrated proving to him that it was being used as a thought process and that as a child gets older that this external speech gradually disappears and is replaced by internal thoughts. He believed the acquisition of internal thought to be necessary for a child to attain higher levels of cognitive development.
Piaget and Vygotsky differed on their opinions regarding the way social interaction should effects early year’s education. Piaget has been a major contributor to the way professionals plan for children within early year’s educational settings. He viewed play as a vehicle for learning in which children gain valuable experiences, knowledge and understanding. He suggested that children are ‘active learners’ and that they require first-hand experiences in order to learn and discover. Piaget theorized that cognitive development can not be accelerated through adult instruction. He believed that development is a biological process, not a social one and that social interaction with adults can actually limit progression because the child will accept an adult's viewpoints without first experiencing the stimuli necessary to form their own conclusions. His assertion was that children should be provided with the opportunity to work alone to solve problems, hence the commonly used term in early years provision ‘discovery learning’ or learning through play. Vygotsky research and findings have also been instrumental in shaping early years education. He suggested that it is the combination of adult tutoring and peer support (peer contact is only of use if the peer has skills that the child doesn't possess) that is a key factor in early year’s educational development as it enables the child to move from one zone (level of ability) to another (The Zones of Proximal Development). This support is gradually withdrawn as the child becomes more able. Vygotsky theorized that intellectual development is continually evolving, without an end point and is not completed in such liner stages with the potential of reaching a final stage/level of cognition as Piaget theorized.
In conclusion I believe that some aspects of Piaget’s and Vygotsky's theories are complementary (for example they both believe in some form of stages of development) however the major difference between the two is the importance they place on social interaction and its’ effect on cognitive development. They both take into account individual and social factors but again where they differ is in the direction they view these factors as coming from. Piaget believes that cognition starts with the individual and progresses to social awareness, and Vygotsky believes that cognition starts with social awareness and then moves to the individual. I personally am of the belief that cognitive development is greatly influenced by social interaction and therefore tend to lean more towards Vygotsky's social constructivists approach to child development. This assumption possibly stems from my own personal beliefs and assumptions which I have constructed through my experiences working as an early year’s educator. It is my belief that as an adult I play an important role in the cognitive development of the children in my care, and I believe that the adults’ role or the more able other is crucial in supporting the ongoing child’s cognitive development. I believe this is achieved by extending and scaffolding learning, developing the child’s communication skills, planning a challenging environment, supporting children’s spontaneous play and developing learning through planned play.
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References
Oates, J. Wood, C. and Grayson, A. (2005) ‘Psychological Development and Early Childhood’ Blackwell Publishing in association with The Open University (ED209 Book 1)
Video band 1 ‘Children Learning’ (The Open University)