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ERIC Number: EJ1169981
Record Type: Journal
Publication Date: 2018-Feb
Pages: 21
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-1571-0068
Transposition of Knowledge: Encountering Proportionality in an Algebra Task
Lundberg, Anna. L. V.; Kilhamn, Cecilia
International Journal of Science and Mathematics Education, v16 n3 p559-579 Feb 2018
This article reports on an analysis of the process in which "knowledge to be taught" was transposed into "knowledge actually taught," concerning a task including proportional relationships in an algebra setting in a grade 6 classroom. We identified affordances and constraints of the task by describing the mathematical praxeology of the two different types of knowledge exposed, in the task as such and in the activity of the classroom. Through the teacher's explicit process of reasoning, modeling, revising, solving, and repeatedly explaining the task, we found that the transposition of knowledge was seriously affected by the contextualization of the task. Modeling word problems about everyday situations has its limitations and can, as in this case, make the problem unsolvable unless it is accepted as a "textbook task" disguised as real but adjusted to the norms of school mathematics. Such constraints may obscure mathematical ideas afforded by the task. We conclude that learning opportunities embedded in a task do not necessarily surface when a task is treated in a classroom setting.
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Publication Type: Journal Articles; Reports - Research
Education Level: Grade 6
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A