Defining a rectangle under a social and practical setting by two seventh graders

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Regarding defining as a mathematical activity bridging informal to formal proof, two seventh graders will reinvent the definition of rectangles under a social and practical setting based on their informal argumentation. Their apprehensions of figures, implicit concepts/theorems and the cognitive architecture of defining are discussed in this paper.

Original languageEnglish
Pages (from-to)17-28
Number of pages12
JournalZDM - International Journal on Mathematics Education
Issue number1
Publication statusPublished - 2002 Jan 1


ASJC Scopus subject areas

  • Education
  • Mathematics(all)

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