briannaheideman Read the following article_  Psychologists have traditionally… Read the following article_ Psychologists have traditionally had difficulty studying cognitive development in children because young children cannot effectively communicate their thoughts to others. Swiss psychologist Jean Piaget, however, became interested in cognitive development in infants and children, and he spent nearly 60 years investigating the differences between the thought processes of children and those of adults. Piaget (1896-1980) earned his Ph.D. in zoology from the University of Neuchatel, Switzerland, in 1918. His educational training helped him in his studies on children’s cognitive development because he learned how to make careful observations of noncommunicative organisms solving problems. He theorized that when children are unsuccessful at solving particular problems, they develop more complex mental structures to help them in the future. Piaget was the founder and director of the International Center of Genetic Epistemology in Geneva and a professor of psychology at the University of Geneva. The selection that follows is from “The Stages of the Intellectual Development of the Child,” which was published in Bulletin of the Menninger Clinic in 1962. Here Piaget describes the four periods of cogn itive development through which people progress. These periods trace the development of intelligence from simple reflexes to complex reasoning. As you read this selection, note the ages at which Piaget suggests each stage begins. Consider 53 54 Chapter 3 Development the implications for understanding how infants and children think. Why is it important to realize that children think differently from how adults do? Key Concept: cognitive development APA Citation: Piaget, J. (1962). The stages of the intellectual development of the child. Bulletin of the Menninger Clinic, 26, 120-128. A consideration of the stages of the development of intelligence should be preceded by asking the question, What is intelligence? Unfortunately, we find ourselves confronted by a great number of definitions. For [Swiss psychologist Edouard] Claparede, intelligence is an adaptation to new situations. When a situation is new, when there are no reflexes, when there are no habits to rely on, then the subject is obliged to search for something new. That is to say, Claparede defines intelligence as groping, as feeling one’s way, trial-and-error behavior. We find this trial-and-error behavior in all levels of  intelligence, even at the superior level, in the form of hypothesis testing. As far as I am concerned, this definition is too vague, because trial and error occurs in the formation of habits, and also in the earliest established reflexes: when a newborn baby learns to suck. Karl BUhler defines intelligence as an act of immediate comprehension; that is to say, an insight. BUhler’s definition is also very precise, but it seems to me too narrow. I know that when a mathematician solves a problem, he ends by having an insight, but up to that moment he feels, or gropes for, his way; and to say that the trial-and-error behavior is not intelligent and that intelligence starts only when he finds the solution to the problem, seems a very narrow definition. I would, therefore, propose to define intelligence not by a static criterion, as in previous definitions, but by the direction that intelligence follows in its evolution, and then I would define intelligence as a form of equilibration, or forms of equilibration, toward which all cognitive functions lead. But I must first define equilibration. Equilibration in my vocabulary is not an exact and automatic balance, as it would be in Gestalt theory; I define equilibration principally as a compensation for an external disturbance. When there is an external disturbance, the subject succeeds in compensating for this by an activity. The maximum equilibration is thus the maximum of the activity, and not a state of rest. It is a mobile equilibration, and not an immobile one. So equilibration is defined as compensation; compensation is the annulling of a transformation by an inverse transformation. The compensation which intervenes in equilibration implies the fundamental idea of reversibility, and this reversibility is precisely what characterizes the operations of the intelligence. An operation is an internalized action, but it is also a reversible action. But an operation is never isolated; it is always subordinated to other operations; it is part of a more inclusive structure. Consequently, we define intelligence in terms of operations, coordination of operations. Take, for example, an operation like addition: Addition is a material action, the action of reuniting. On the other hand, it is a reversible action, because addition may be compensated by subtraction. Yet addition leads to a structure of a whole. In the case of numbers, it will be the structure that the mathematicians call a “group.” In the case of addition of classes which intervene in the logical structure it will be a more simple structure that we will call a grouping, and so on. Consequently, the study of the stages of intelligence is first a study of the formation of operational structures. I shall define every stage by a structure of a whole, with the possibility of its integration into succeeding stages, just as it was prepared by preceding stages. Thus, I shall distinguish four great stages, or four great periods, in the development of intelligence: first, the sensori-motor period before the appearance of language; second, the period from about two to seven years of age, the preoperational period which precedes real operations; third, the period from seven to 12 years of age, a period of concrete operations (which refers to concrete objects); and finally after 12 years of age, the period of formal operations, or positional operations. 55 Jean Piaget SENSORI-MOTOR STAGE Before language develops, there is behavior that we can call intelligent. For example, when a baby of 12 months or more wants an object which is too far from him, but which rests on a carpet or blanket, and he pulls it to get to the object, this behavior is an act of intelligence. The child uses an intermediary, a means to get to his goal. Also, getting to an object by means of pulling a string when the object is tied to the string, or when the child uses a stick to get the object, are acts of intelligence. They demonstrate in the sensori-motor period a certain number of stages, which go from simple reflexes, from the formation of the first habits, up to the coordination of means and goals. Remarkable in this sensori-motor stage of intelligence is that there are already structures. Sensori-motor intelligence rests mainly on actions, on movements and perceptions without language, but these actions are coordinated in a relatively stable way. They are coordinated under what we may call schemata of action. These schemata can be generalized in actions and are applicable to new situations. For example, pulling a carpet to bring an object within reach constitutes a schema which can be generalized to other situations when another object rests on a support. In other words, a schema supposes an incorporation of new situations into the previous schemata, a sort of continuous assimilation of new objects or new situations to the actions already schematized. For example, I presented to one of my children an object completely new to him-a box of cigarettes, which is not a usual toy for a baby. The child took the object, looked at it, put it in his mouth, shook it, then took it with one hand and hit it with the other hand, then rubbed it on the edge of the crib, then shook it again, and gave the impression of trying to see if there were noise. This behavior is a way of exploring the object, of trying to understand it by assimilating it to schemata already known. The child behaves in this situation as he will later in Binet’s famous vocabulary test, when he defines by usage, saying, for instance, that a spoon is for eating, and so on. 56 Chapter 3 Development But in the presence of a new object, even without knowing how to talk, the child knows how to assimilate, to incorporate this new object into each of his already developed schemata which function as practical concepts. Here is a structuring of intelligence. Most important in this structuring is the base, the point of departure of all subsequent operational constructions. At the sensorimotor level, the child constructs the schema of the permanent object. The knowledge of the permanent object starts at this point. The child is not convinced at the beginning that when an object disappears from view, he can find it again. One can verify by tests that object permanence is not yet developed at this stage. But there is there the beginning of a subsequent fundamental idea which starts being constructed at the sensori-motor level. This is also true of the construction of the ideas of space, of time, of causality. What is being done at the sensori-motor level concerning all the foregoing ideas will constitute the substructure of the subsequent, fully achieved ideas of permanent objects, of space, of time, of causality …. PRE-OPERATIONAL STAGE From one and one-half to two years of age, a fundamental transformation in the evolution of intelligence takes place in the appearance of symbolic functions. Every action of intelligence consists in manipulating significations (or meanings) and whenever (or wherever) there is significations, there are on the one hand the “significants” and on the other the “significates.” This is true in the sensori-motor level, but the only significants that intervene there are perceptual signs or signals (as in conditioning) which are undifferentiated in regard to the significate; for example, a perceptual cue, like distance, which will be a cue for the size of the distant object, or the apparent size of an object, which will be the cue for the distance of the object. There, perhaps, both indices are different aspects of the same reality, but they are not yet differentiated significants. At the age of one and one-half to two years a new class of significants arises, and these significants are differentiated in regard to their significates. These differentiations can be called symbolic function. The appearance of symbols in a children’s game is an example of the appearance of new significants. At the sensori-motor level the games are nothing but exercises; now they become symbolic play, a play of fiction; these games consist in representing something by means of something else. Another example is the beginning of delayed imitation, an imitation that takes place not in the presence of the original object but in its absence, and which consequently constitutes a kind of symbolization or mental image. At the same time that symbols appear, the child acquires language; that is to say, there is the acquisition of another phase of differentiated significants, verbal signals, or collective signals. This symbolic function then brings great flexibility into the field of intelligence. Intelligence up to this point refers to the immediate space which surrounds the child and to the present perceptual situation; thanks to language, and to the symbolic functions, it becomes possible to invoke objects which are not present perceptually, to reconstruct the past, or to make projects, plans for the future, to think of objects not present but very distant in space–in short, to span spatio-temporal distances much greater than before. But this new stage, the stage of representation of thought which is superimposed on the sensori-motor stage, is not a simple extension of what was referred to at the previous level. Before being able to prolong, one must in fact reconstruct, because behavior in words is a different thing from representing something in thought. When a child knows how to move around in his house or garden by following the different successive cues around him, it does not mean that he is capable of representing or reproducing the total configuration of his house or his garden. To be able to represent, to reproduce something, one must be capable of reconstructing this group of displacements, but at a new level, that of the representation of the thought. I recently made an amusing test with Nel 5zeminska. We took children of four to five years of age who went to school by themselves and came back home by themselves, and asked them if they could trace the way to school and back for us, not in design, which would be too difficult, but like a construction game, with concrete objects. We found that they were not capable of representation; there was a kind of motor-memory, but it was not yet a representation of a whole-the group of displacements had not yet been reconstructed on the plan of the representation of thought. In other words, the operations were not yet formed. There are representations which are internalized actions, but actions still centered on the body itself, on the activity itself. These representations do not allow the objective combinations, the decentrated combinations that the operations would. The actions are centered on the body. I used to call this egocentrism; but it is better thought of as lack of reversibility of action. At this level, the most certain sign of the absence of operations which appear at the next stage is the absence of the knowledge of conservation. In fact, an operation refers to the transformation of reality. The transformation is not of the whole, however; something constant is always untransformed. If you pour a liquid from one glass to another there is transformation; the liquid changes form, but its liquid property stays constant. So at the pre-operational level, it is significant from the point of view of the operations of intelligence that the child has not yet a knowledge of conservation. For example, in the case of liquid, when the child pours it from one bottle to the other, he thinks that the quantity of the liquid has changed. When the level of the liquid changes, the child thinks the quantity has changed-there is more or less in the second glass than in the first. And if you ask the child where the larger quantity came from, he does not answer this question. What is important for the child is that perceptually it is not the same thing any more. We find this absence of conservation in all object properties, in the length, surface, quantity, and weight of tho mgs … . 57 Jean Piaget STAGE OF CONCRETE OPERATIONS The first operations of the manipulation of objects, the concrete operations, deal with logical classes and with logical relations, or the number. But these operations do not deal yet with propositions, or hypotheses, which do not appear until the last stage. Let me exemplify these concrete operations: the simplest operation is concerned with classifying objects according to their similarity and their difference. This is accomplished by including the subclasses within larger and more general classes, a process that implies inclusion. This classification, which seems very simple at first, is not acquired until around seven to eight years of age. Before that, at the pre-operational level, we do not find logical inclusion. For example, if you show a child at the pre-operational level a bouquet of flowers of which one half is daisies and the other half other flowers and you ask him if in this bouquet there are more flowers or more daisies, you are confronted with this answer, which seems extraordinary until it is analyzed: The child cannot tell you whether there are more flowers than daisies; either he reasons on the basis of the whole or of the part. He cannot understand that the part is complementary to the rest, and he says there are more daisies than flowers, or as many daisies as flowers, without understanding this inclusion of the subclass, the daisies, in the class of flowers. It is only around seven to eight years of age that a child is capable of solving a problem of inclusion. Another system of operation that appears around seven to eight years of age is the operation of serializing; that is, to arrange objects according to their size, or their progressive weight. It is also a structure of the whole, like the classification which rests on concrete operations, since it consists of manipulating concrete objects. At this level there is also the construction of numbers, which is, too, a synthesis of classification and seriation. In numbers, as in classes, we have inclusion, and also a serial order, as in serializing. These elementary operations constitute structures of wholes. There is no class without classification; there is no symmetric relation without serialization; there is not a number independent of the series of numbers. But the structures of these wholes are simple structures, groupings in the case of classes and relations, which are already groups in the case of numbers, but very elementary structures compared to subsequent structures. STAGE OF FORMAL OPERATIONS 58 The last stage of development of intelligence is the stage of formal operations or propositional operations. At about eleven to twelve years of age we see great progress; the child becomes capable of reasoning not only on the basis of objects, but also on the basis of hypotheses, or of propositions. An example which neatly shows the difference between reasoning on the basis of propositions and reasoning on the basis of concrete objects comes from Burt’s tests. Burt asked children of different ages to compare the colors of the hair of three girls: Edith is fairer than Susan, Edith is darker than Lilly; who is the darkest of the three? In this question there is seriation, not of concrete objects, but of verbal statements which supposes a more complicated mental manipulation. This problem is rarely solved before the age of 12. Here a new class of operations appears which is superimposed on the operations of logical class and number, and these operations are the propositional operations. Here, compared to the previous stage, are fundamental changes. It is not simply that these operations refer to language, and then to operations with concrete objects, but that these operations have much richer structures. The first novelty is a combinative structure; like mathematical structures, it is a structure of a system which is superimposed on the structure of simple classifications or seriations which are not themselves systems, because they do not involve a combinative system. A combinative system permits the grouping in flexible combinations of each element of the system with any other element of that system. The logic of propositions supposes such a combinative system. If children of different ages are shown a number of colored disks and asked to combine each color with each other two by two, or three by three, we find these combinative operations are not accessible to the child at the stage of concrete operations. The child is capable of some combination, but not of all the possible combinations. After the age of 12, the child can find a method to make all the possible combinations. At the same time he acquires both the logic of mathematics and the logic of propositions, which also supposes a method of combining. A second novelty in the operations of propositions is the appearance of a structure which constitutes a group of four transformations. Hitherto there were two reversibilities: reversibility by inversion, which consists of annulling, or canceling; and reversibility which we call reciprocity, leading not to cancellation, but to another combination. Reciprocity is what we find in the field of a relation. If A equals B, by reciprocity B equals A. If A is smaller than B, by reciprocity B is larger than A. At the level of propositional operations a new system envelops these two forms of reversibility. Here the structure combines inversion and reversibility in one single but larger and more complicated structure. It allows the acquisition of a series of fundamental operational schemata for the development of intelligence, which schemata are not possible before the constitution of this structure. It is around the age of 12 that the child, for example, starts to understand in mathematics the knowledge of proportions, and becomes capable of reasoning by using two systems of reference at the same time. For example, if you advance the position of a board and a car moving in opposite directions, in order to understand the movement of the board in relation to the movement of the car and to other movement, you need a system of four transformations. The same is true in regard to proportions, to problems in mathematics or physics, or to other logical problems. The four principal stages of the development of intelligence of the child progress from one stage to the other by the construction of new operational structures, and these structures constitute the fundamental instrument of the intelligence of the adult.After reading the above article Open a paper with a paragraph introducing the topic you chose and the author of the article. Try to be creative. Do not start your paper with this sentence: “This paper is about X.”Summarize the article in about 2-3 full paragraphs.State what you liked about the article, and why.State what you didn’t like about the article, and why.Write a conclusion – Ideas for things you could include: do you think this person will always be famous? How has this person’s ideas or research influenced the field? Is this person’s influence larger than just psychology?Social SciencePsychology