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the psychology of learning and motivation - Percepts and Concepts ...

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Cognitive Load Theory 47assumed to be largely unrelated to <strong>the</strong> characteristics <strong>of</strong> long-term memorycan now be seen to closely depend on it. Long-term memory is acentral to, perhaps <strong>the</strong> central structure in, human cognitive architecture.The nature <strong>of</strong> <strong>learning</strong> is also changed by this perspective. A competentperson is not someone who has acquired complex, sophisticated,cognitive strategies that can be used in a variety <strong>of</strong> unrelated areas. Suchteachable/learnable general strategies have not been described, probablybecause <strong>the</strong>y are biologically primary. Ra<strong>the</strong>r, competence is domainspecific. Some domains may be applicable in a large variety <strong>of</strong> areas, butit is still <strong>the</strong> particular domain that is important. Acquiring chess skill maynot be usable in any areas o<strong>the</strong>r than playing chess. Acquiring reading skillmay allow a person to read an unlimited number <strong>of</strong> unrelated texts.Never<strong>the</strong>less, reading skill applies only to reading. It will not improve aperson’s chess skill. Nei<strong>the</strong>r, in isolation, will it improve a person’sknowledge <strong>of</strong> history. It will, <strong>of</strong> course, enable one to read historical texts<strong>and</strong> being able to read historical texts will improve a person’s knowledge<strong>of</strong> history. The point is that in each case, <strong>the</strong> skill can be clearly specified<strong>and</strong> so clearly taught. From an educational perspective, <strong>the</strong> role <strong>of</strong> educationis to increase knowledge held in long-term memory <strong>of</strong> particulardiscipline areas. How that knowledge is best acquired is a concern <strong>of</strong>cognitive load <strong>the</strong>ory. Teaching general cognitive skills, on <strong>the</strong> o<strong>the</strong>rh<strong>and</strong>, may need to await <strong>the</strong> specification <strong>of</strong> such skills.2.2.2. Borrowing <strong>and</strong> Reorganizing PrincipleIf, as indicated by <strong>the</strong> information store principle, natural informationprocessing systems require a very large store <strong>of</strong> information in order t<strong>of</strong>unction in complex natural environments, <strong>the</strong> processes by which largestores <strong>of</strong> information are acquired become a critical issue. In <strong>the</strong> case <strong>of</strong>evolution by natural selection, <strong>the</strong> processes <strong>of</strong> reproduction, both asexual<strong>and</strong> sexual, are well known. They constitute <strong>the</strong> primary procedures bywhich a store <strong>of</strong> information is acquired. During asexual reproduction,each genome is copied exactly from <strong>the</strong> genome <strong>of</strong> <strong>the</strong> previous generation,with <strong>the</strong> exception <strong>of</strong> occasional mutations. In this sense, <strong>the</strong>information store that constitutes a particular genome has been borrowedlargely in its entirety from <strong>the</strong> information store <strong>of</strong> <strong>the</strong> preceding generation.Borrowing can be seen to be a major procedure for acquiring a largeinformation store.Borrowing is equally important in <strong>the</strong> case <strong>of</strong> sexual reproduction.The major difference between asexual <strong>and</strong> sexual reproduction is that in<strong>the</strong> case <strong>of</strong> asexual reproduction, an information store is borrowed withno or minimal change, while in <strong>the</strong> case <strong>of</strong> sexual reproduction, <strong>the</strong>information is reorganized. Not only is <strong>the</strong> information reorganized, inaddition, that reorganization provides <strong>the</strong> major reason for <strong>the</strong> existence<strong>of</strong> sexual reproduction. The reorganization <strong>of</strong> information during sexual

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