Resumo

GUIMARAES, Marcos Denilson; SILVA, Martha Raíssa Iane Santana da  e  FRANCA, Denise Medina. What arithmetic to teach decimal metric system? Professional knowledge for your teaching. Rev. Educ. Questão [online]. 2020, vol.58, n.58, e-23267.  Epub 16-Out-2020. ISSN 1981-1802.  https://doi.org/10.21680/1981-1802.2020v58n58id23267.

The legal framework for the implementation of the Decimal Metric System (DMS) in Brazilian schools by the Imperial Law of 1862, Law No. 1157, of June 26, promulgated by D. Pedro II, would now complete its 158 years. In the present study, from a socio-historical nature, the processes of schooling DMS, knowledge were problematized, also taking into account topics related to the didactic-methodological training of teachers who teach mathematics. In order to characterize the approach of a Decimal Metric System to be taught and for teach, studies published by researchers between the years 2007 to 2018 that addressed DMS from school textbooks were analyzed. It is concluded that the mathematics to teach and for teach the DMS underwent transformations in terms of ordering knowledge, as well as modifications in the program with progressive insertion of this content, replacing the old System of Weights and Measures. Throughout the period there is a characterization of a practical intuitive DMS.

Palavras-chave : Arithmetic; History of mathematics education; Decimal metric system; Professional knowledge.

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