The Theory of Constructivism

Piaget's Stages of Cognitive Development

Piaget concluded that there were four different stages in the cognitive development of children.

The Information Processing Approach

The cognitive learning theory is represented as an S-O-R paradigm. The organism is treated as an active processor of information.

The stage theory proposes that information is processed and stored in 3 stages.

The Three Primary Processes

I. Encoding. This when the information in our environment is being sensed, perceived or attended to.

II. Storage. After we encode the information, it is stored for either a short or long period of time depending on how we process or encode the said information.

III. Retrieval. The stored information is retrieved when needed in a certain task.

The Three Main Stages of Information Processing

1. Sensory Memory

  

Human body perceives the environment through the senses. These sensations travel to the brain as electrical impulses or synapses. However, these electrical impulses or synapses must be translated in such a way that the brain can understand. This process is called transduction. Sensory Memory, the first main stage of information processing is affiliated with the transduction of energy. 

In this stage, our mind holds the information for extremely brief period of time, since it receives a great amount of information more than it can hold or perceive. This is the reason why attention is very important on this stage. In order for the information to proceed to the next stage, that information must be attended to, or must be familiarized by the thinker. In addition, the duration is different among the senses, like auditory memory is more persistent than visual memory.

2. Short-Term Memory 

  

This memory is also called working memory because this refers to what we are thinking in a certain moment of time. This stage is created if we attend to an external information, a thought that popped in our head, or both.

The capacity of short term memory is said to be 5 plus-minus. This means that STM can hold 3 to 7 chunks or bits of information. The duration of the information while in the STM is dependent on how we organize or practice/repeat that information. Thus, organization and repetition, plus chunking or grouping, can help the information proceed to the next stage, that is the Long-Term Memory.

3. Long-Term Memory 

This is the final stage of memory wherein the information can be stored permanently until needed. Its capacity is limited and its duration is indefinite.

Take note however that these stages are not like that of machines that once turned on, will do the process 1st step, 2nd step, 3rd step, so on and so forth. The processes are said to be controlled and regulated by an executive processing system, more popularly known as metacognition. Metacognition, in simpler terms, is "thinking about thinking"

Vygotsky’s Social Development Theory

Vygotsky’s theory is one of the foundations of constructivism. It asserts three major themes:

1. Social interaction plays a fundamental role in the process of cognitive development. In contrast to Jean Piaget’s understanding of child development (in which development necessarily precedes learning), Vygotsky felt social learning precedes development. He states: “Every function in the child’s cultural development appears twice: first, on the social level, and later, on the individual level; first, between people (interpsychological) and then inside the child (intrapsychological).” (Vygotsky, 1978).

2. The More Knowledgeable Other (MKO). The MKO refers to anyone who has a better understanding or a higher ability level than the learner, with respect to a particular task, process, or concept. The MKO is normally thought of as being a teacher, coach, or older adult, but the MKO could also be peers, a younger person, or even computers.

3. The Zone of Proximal Development (ZPD). The ZPD is the distance between a student’s ability to perform a task under adult guidance and/or with peer collaboration and the student’s ability solving the problem independently. According to Vygotsky, learning occurred in this zone.

Vygotsky focused on the connections between people and the sociocultural context in which they act and interact in shared experiences (Crawford, 1996). According to Vygotsky, humans use tools that develop from a culture, such as speech and writing, to mediate their social environments. Initially children develop these tools to serve solely as social functions, ways to communicate needs. Vygotsky believed that the internalization of these tools led to higher thinking skills.