MODULE 6 The Learning Process: Views Fromn The Cognitive Constructivists .^.^.^^.^.^.^^^^^.A.^.^.^.^.^.^^^.^.^,^,^,^^^A,^^,^A^^^.A^,^,^,^^,/.^A^A^A^.^.^^^^.^.^,^^^N^.^.^^/^^^^.^^.^^ Learning Objectives At the cnd of this module, you are expected to be able to: 1. Differentiate Bruner's discovery learning from Ausubel's expository learning. 2. Discuss Bruner's three ways of representing objects and events. 3. Explain the different conditions that promote effective discovery learning Introduction Even though information processing theorists believe that we actively construct knowledge based on what we already know and the new information we encountered, many constructivists believe that information processing does not take the idea of knowledge construction for enough (Deny,1992, Garrison,1995 as cited in Woolfolk,1998). Constructivism is an educational philosophy which holds that learners ultimately construct their ownknowledgethat then resides within them, so that each person's knowledge is a s unique as him or her (ALN Magazine 1997). In other words, learners construct knowledge for themselveseach learner individually and socially constructs meaning- as he or she learns. In the Constructivist theory, the emphasis is placed on the learner or the student rather than the teacher. It is the learner who interacts with objects and events and thereby gains an understanding of the features held by such objects of events. The learner, therefore, constructs his/ her own conceptualizations and solutions to problem. In this module, the noted contributions of Jerome Bruner and David Ausubel to constructivism will be discussed. cognitive JEROME BRUNER'S CATEGORIZATION AND DISCOVERY LEARNINGG Jerome Bruner is was set to one of the forerunners of the Cognitive Revolution in the late 1950's that replace behaviorism. His most notable contributions were his ideas about categorization. differences which world in terms of similarities and Bruner maintained that people interpret the in the same as similar are placed events. Objects that are viewed are detected among objects and the learner which into in his theory of learning is the coding system variable The major category. organizes these categories. learning theory states" to Based upon the idca of categorization, Bruner's cognitive to learn is to form categories, to make perceive is to categorize, to conceptualize is to categorize, decisions is to categorize". Categorization involves two which is the initial stages: a) Concept formation and that there are distinguishing understanding that there are different classes and categories can determine what those attributes between objects/ events. b) Concept attainment where one and what does not. particular attributes are and how they can be used to identify what belongs Bruner believes that all human cognitive activity involves categories. This is the process of building and using representations in order to make sense of the world. Either incoming information is organized in terms of pre-existing categories or we create new ones. He also believes that a person has three means of achieving understanding: enactive, iconic, and symbolic representation. Each of these modes has its unique way of representing objects and events as cited by Sprinthall and Sprinthall (2001). Three Kinds of Representation Identified by Bruner KINDS OF REPRESENTATION Enactive PROCESSS (doing) Using mental image to stand for objects Symbolic USE Tying a knot motor skills Represented in the muscle Iconic EXAMPLE Having an sensory skills image of what the (mental picture knots look of things) like Describing the Using symbol systems (thinking knot and how to and reasoning) tieit. | Intellectual skills knowing the reality of things) The first phase is enactive where a child's world is represented in terms of their immediate sensation and through which learning is achieved through doing. These motor acts (know-how) that involve sequential movements are being integrated by a certain conceptual scheme. When young children are in this stage of thinking, the best, the most comprehensible, messages are wordless one. The second phase is iconie which happens during 2-3 years of age and involves the use of mental images to stand for certain objects or events when they are changed in minor ways. Here, objects become conceivable without action, children can now draw a spoon, without acting out the cating process. This is a significant breakthrough in the development of intellect, for the use of pictures allows children at this stage to be tutored in simpler ways. The third phase is the symbolic representation which is the highest and most complicated manner by which we acquire learning. This phase starts from age 7 and beyond. Children can now translate experience into language. It involves the ability to transform action and image into a symbolic system to encode knowledge. Primarily, these symbols are language and mathematical notation. BRUNER'S DISCOVERY LEARNING Bruner also advocated the discovery oriented learning approach in schools which he believes would help students discover the relationship between categories. Discovery learning Occurs when students are presented with problem situations that require them to discuss the essential concepts of the subject matter (Bruner, 1960 as cited in McCown, 1995). A teacher who uses a discovery learning approach to instruction presents examples problems and then asks students to examine and think about them inductively with a goal of or formulating a general principle. For example, by experimenting, the students would discover and articulate the essential properties of salt water and fresh water rather than being told what they are. Discovery learning encourages students to actively use their intuition, imagination, and creativity. Because the approach starts with the specific and then moves to the general, it also facilitates inductive reasoning Students are encouraged to discover the facts and relationships for themselves and build on what they already know. The school continually curriculum is ideally organized in a spiral manner to facilitate this process, such as the same topics are redeveloped at succeeding age or grade levels to progressively reinforce learning (Bruner, 1996). What Conditions Promote Effective McCown, et. al Discovery Learning (1995) discussed the conditions that promote effective discovery learning. 1. Prior Knowledge When students have little or no prior knowledge related to they discover, they can experience frustration and failure. Asking them to principles make connections to related ideas as they enter a discovery learning environment can help students begin to determine what information is relevant and what steps they should take to solve a problem. are asked to 2. Provision of a Model "The constant provision of a model, the constant response to the individual's response after response, back and forth between two people, constitute 'invention' learning guided by an accessible model" (Bruner; 1973). For instance, in teaching the concept of alliteration, the teacher could provide both cxamples and non-examples and systematically guide students through an exploration of their similarities and diffcrences. By asking certain kinds of questions and prompting students to generate hypothesis, the teacher also models the inquiry process. 3. Use of Contrast to Stimulate Cognitive Conflicts In science, for example, a teacher could begin a lesson on air and air pressure with a demonstration that shows water flowing uphill. This is a surprising event because we are accustomed to the force of gravity causing water to flow downhill. In trying to resolve the discrepancy, students discover how air exerts pressure that can overcome the force of gravity. AUSUBEL'S VERBAL LEARNING AND EXPOSITORY LEARNING Ausubel's significant contributions are the following (McCown 1995): Theory of Meaningful Verbal Learning David Paul Ausubel contributed much to cognitive learning theory in his explanationof meaningful verbal leaming on cognitive structures, which he saw as the predominant method of classroom learning. This theory deals mostly with how individuals learn large amounts of meaningful materials from verbal and textual lessons in school. To Ausubel, the stimulus or concept gains meaning when it is related to an idea that is already present in the mind. Thus, there must be something in the learner cognitive structure to which it can be related. He believed that a signifier (i.e. word) has a meaning when its effect upon the learner is equivalent to the effect of the object it signifies. He described three main categories on meaningful reception of information. 1. Representation- the meaning of a single word or symbol is learned. 2. Conceptual the learner begins to recognize the features or attributes of a concept. 3. Prepositional the learner combines words and/ or symbols to form new ideas. - Subsumption Process A subsumer is a concept similar to schema or coding system. It leads us to think of cognitive structure as a type or organization where higher level concepts incorporate or 'subsume" other ideas. In describing the process of subsumption, Ausubel contended that the most important single factor in influencing learning is what the learner already knows. Derivative have bee derived subsumption occurs directly from it. if the material is similar to existing structure that courd Correlative subsumption occurs if the ncw matcrials requircs an cxtcnsion of structurc some of it is entirely new. bccause RECEPTION AND EXPOSITORY TEACHING Whereas Bruner advocated a discovery approach to meaningful learning, Ausubel believed that knowledge is best acquired through reception rather than discovery. Reception earning occurs when students recoive the essential principles or concepts, think about them deductively, and are then shown how to apply them in specific instances (Ausubel, Novak, and Hancsian, 1978 as cited in McCown,1995) For Ausubel, active processing of information occurs when the ideas presented are well organized and clearly focused. In order to present effectively, teachers must care fully organize, sequence, and explain the material so that students can process it efficiently. The kind of instruction that leads to reception learning is called expository teaching. (expository means explanation). An essential element of expository is the advance organizer. Ausubel proposed his Expository Teaching Model to encourage meaningful rather than rote reception lcarning. He believes that learning should progress deductively- from general to specific- and not inductively as Bruner recommended. Advance Organizers Ausubel's major contribution is the use of advance organizer. An advance organizer is information presented prior to learning that assists in understanding new information by relating it to new existing knowledge (Ausubel, Novak and Hanesian, 1978 as cited in McCown, 1995). It is different from overviews and summaries, which simply emphasize key ideas and are presented at the same level of abstraction and generality as the rest of the materials. He suggests that the lesson always begin with an advance organizer- an introductory statement of a relationship of high level concept, broad cenough to encompass all information that will follow. According to Ausubel (19963), advance organizer usually serves three purposes: 1. direct attention to what is important in the coming material. 2. highlight relationships among the ideas that will be presented, and 3. remind the student of relevant information already in the memory