My experiences tell me that, in the classroom, the first example of a proof
by mathematical induction shown to students tends to be the general result for
triangular numbers, but only modelled as symbolic representation (Bruner,
1966), or at the extended abstract level of the SOLO taxonomy (Biggs & Collis,
1982). Even for high ability students, this is quite a cognitive leap to make.
Good, robust pedagogical theory (i.e., supported by formal research) tells
us that, even if only briefly, it is necessary to introduce a new mathematical
concept using enactive and iconic representations (Bruner, 1966), or building
up from multi-structural and relational levels of cognitive complexity (Biggs
& Collis, 1982).
My experiences tell me that, in the classroom, the first example of a proofby mathematical induction shown to students tends to be the general result fortriangular numbers, but only modelled as symbolic representation (Bruner,1966), or at the extended abstract level of the SOLO taxonomy (Biggs & Collis,1982). Even for high ability students, this is quite a cognitive leap to make.Good, robust pedagogical theory (i.e., supported by formal research) tellsus that, even if only briefly, it is necessary to introduce a new mathematicalconcept using enactive and iconic representations (Bruner, 1966), or buildingup from multi-structural and relational levels of cognitive complexity (Biggs& Collis, 1982).
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