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Mathematics and Society - OS X Lion Server

Mathematics and Society - OS X Lion Server

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DIDACTICSTEACHING FOR TRANSFERclarified by a diversity of examples <strong>and</strong> settings, <strong>and</strong> such a variety alerts thestudent to the fact that the concept or principle can arise in many different contexts.Such a variety of examples not onlygives them additional experience withthe concept but also enables then, tosee many situations where the idea canbe used.For example, over a period of years the work with fractions should includeexposure to the several models for fractions (see the commentary to FRACTIONS:Concepts, in the resource Number Sense <strong>and</strong> Arithmetic Skills).The learner's backgroundmust be kept in mind, of course;introducing all possible settings on astudent's first encounter with a newconcept or principle would be illadvised.For the concept of area, studentsshould work with areas of planeregions having curved boundaries <strong>and</strong>with surface areas of space figures, aswell as the usual polygonal regions.Gagne advises:BUT THAT DOC~10THAVE: AREA - Ot-) LYSTRAIGI-H T\.\II\lG":> DO.The more varied these (situations) oan be made, the more useful will thelearned oapability beoome. At lower eduoational levels, this variety maybe aohieved by deliberate use of a whole range of natural objeots <strong>and</strong> evenevents in the olassroom or on field trips. At higher (oollegiate) levels,the funotion of providing oontextual variety oan be largely performed byverbal oommunioation, of the sort that may take plaoe in a "disoussiongroup," for example. [1970, p. 339]Bring out the important features in a learning situation.Point out, for example,that the class' work with arbitrary units is to show that the unit of measure~ment can be arbitrary--not because anyone really cares how many paper clips wide adesk-top is.Although language is occasionally over-used <strong>and</strong> its role in learning isnot well understood, it can be utilized in verbalizing the learned rules <strong>and</strong> thespecial features that are likely to transfer.to be an aid:Just using the word for an idea seems"Labeling helps us to distinguish important features of a task,although we are not entirely sure whether this is due merely to increased attentiongiven to these features or whether it is due to the label itself." [Ellis, 1965,p. 72JDo not expect much transfer unless the students underst<strong>and</strong> the general principles.This caution is much like the references to "sufficient" learning above.,15

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