COGNITIVE DEVELOPMENT THEORY This theory was advocated by Jean Piaget, who believed that a child enters the world lacking virtually all the basic cognitive competencies of a series of stages of development discussed hereunder. Schema - mental concepts that organize and interpret information. Assimilation - The individual acquires information or knowledge by which experiences are integrated into existing schemes. Accommodation – The process of modifying existing mental schemas or structures to fit new information. . . STAGES OF DEVELOPMENT by Jean Piaget 1. 1. 2. 3. 4. 5. 6. Sensorimotor Stage (birth – 2 years old) a developing when infants learn about themselves and their world through their own developing sensory and motor activity. 6 substages of sensorimotor skills Reflex Activity (1st month of life) In this early stage the child's behavior is essentially limited to exercising innate skills - that is, reflex actions like sucking, that are the product of heredity. At end of this stage, through visual and other sensory experiences with environment, infants can use their innate skills in a somewhat discriminating and proficient (through basically primitive) manner. When really hunger, for example, infants how appear able to distinguish the nipple form other objects and surfaces and to maneuver their head and mouths to find it. Primary Circular Reactions (1-4 months) Infants begin to define some of their reflex actions and to express repetitive behavior such as opening and closing their fists, hand sucking, foot kicking etc. The reason Piaget calls such behaviors circulation is that the infants are reaching to the pleasure they have derived from chance actions our unplanned behavior by seeking to repeat this behavior in a trialand-error fashion. Infants also begin to develop primitive anticipations based on past experience: For example, they start to make sucking motions on being put into a posture that signals to them that they are about to be fed. Secondary Circular Reactions (4-10 months) In this stage they begin to turn their attention toward objects and occurrences in the external environment. Infants being to perceive some connection between a given action and its consequences in the “outer” world. Through accidental body movements that causes something new to the infant, for example, accidentally causing a toy to make a sound, the infant may be motivated to try to reproduce the action or series of movements that resulted to try to reproduce the action or series of movements that resulted in the sound. The infant's behavior is now becoming somewhat international or purposeful, involving a more refined trial and -error process than observed previously. Coordinating Secondary Schemes (10 – 12 months) The infant applies the patterns of behavior learned in the previous stage to new or problematic situations. coordination of secondary circular reactions, infants begin to combine previously learned behaviors to achieve a specific goal, such as reaching for a toy Tertiary Reactions Infants begin to experiment with new behaviors and learn through trial and error. The child becomes interested in objects in themselves. For example, infants may repeatedly move or drop different items, like a piece of food or a toy, from various positions and heights, and then watch how the objects “responds”. From these "experiments" children begin to understand more about the nature of the external environment. Children also become more proficient at imitating simple behaviors of adults - such as pointing a finger to the forehead then they were in previous stages. Mental Representation (18-12 months) Children being to solve practical problems by thinking them out before taking action, rather than simply using hit-or-miss physical means to achieve and end. Children of this stage who find that a desired objects is beyond their reach may use some other objects such as a stick-to bring the desired objects closer to them. The mental imagery or internalized symbolism this requires can also be seen children's imitative behavior. The child can observe the behavior, make an internal representation, and reproduce the behavior soon, when the model is absent. Infants develop the ability to form mental representations of objects and events, and to use these representations to solve problems and plan actions. Intentional Behavior - the child repeats action to prolong interesting/pleasant events. It refers to the ability to act with a specific goal in mind. (ex. Crying to attract attention) Object Permanence - the understanding that objects continue to exist even when they are not in view. It is the knowledge of the existence of objects in his environment, independent of the child’s actions emerges the child starts to search for missing objects like toys etc. Representation - refers to the ability to form mental representations of objects and events, and to use these representations to solve problems and plan actions. It allows the child to seek necessary solutions through manipulation of internal symbols instead of physical objects. It marks the beginnings of representational though the child has begun to make mental representations of external objects & events. 2. Pre-operational Stage (2-7 years old) Emergence of language skills and interpret experiences words become symbols for objects. The child thinking is egocentric centered on himself. During this stage, children become capable of symbolic thinking, language development, and engaging in pretend play. However, their thinking is still egocentric and lacks logical operations. (Ex. The child is fond of telling tall tales to get the attention of everyone.) Children in this stage struggle with understanding the perspectives of others and have difficulty with tasks that require logical reasoning, such as conservation problems. Conservation - Children struggle with understanding that certain properties of objects, such as volume or number, remain the same even when their appearance changes. Irreversibility - refers to a child's inability to mentally reverse a sequence of events, returning an object to its previous state. (Ex. A child in the preoperational stage may struggle to understand that the same amount of liquid remains unchanged even when poured into different shaped glasses.) Centration - the tendency to focus on only one aspect of a situation and ignore other relevant aspects. 3. Concrete Operational Stage (7-11 years old) children become capable of performing operations on concrete objects and thinking logically about tangible (concrete) examples. They can make logical conclusions about concrete examples but may still struggle with hypothetical or abstract thinking. One of the key concepts in this stage is the ability to understand the principle of reversibility, which refers to the child's capacity to mentally reverse a sequence of steps. (Ex. children in this stage can solve conservation problems, understanding that certain properties of objects, such as volume or number, remain the same even when their appearance changes.) Conservation - Children in this stage develop an understanding of conservation, which is the recognition that certain properties of objects, such as volume or number, remain the same even when their appearance changes. Reversibility - This stage is characterized by the ability to understand the principle of reversibility, allowing children to mentally reverse a sequence of steps. 4. Formal Operational Stage (11 – 16 years old) Children tend to reason more abstractly, systematically, and reflectively. They are more likely to use logic to reason out the possible consequences of each action before carrying it out. They can do mathematical calculations, think creatively, use abstract reasoning, and imagine the outcome of particular actions. The formal operational stage is a significant milestone in cognitive development, marking the transition to adult thinking and reasoning abilities Transitivity - understanding the relationship between two elements and being able to infer the relationship between other elements based on this understanding. (Ex. if a child understands that if A is greater than B, and B is greater than C, then the child can infer that A is also greater than C. This demonstrates the ability to logically carry over the relationship between the elements to make inferences about their relationships with each other.)