Ratios and Proportions in Iceland 1716–2016

Almenn færsla
dc.contributor.authorBjarnadóttir, Kristín
dc.contributor.authorSchubring, Gert
dc.contributor.authorFan, Lianghuo
dc.contributor.authorGeraldo, Victor
dc.contributor.schoolEducation
dc.date.accessioned2025-11-20T08:13:10Z
dc.date.available2025-11-20T08:13:10Z
dc.date.issued2018
dc.description.abstractThe topics of ratios and proportions are investigated in the oldest Icelandic arithmetic textbook, Arithmetica Islandica of 1716, preserved in the manuscript Lbs. 1694 8vo. The conjecture that it is a translation of the printed Danish Arithmetica Danica of 1649 is rejected, while there may be some transmissions of ideas. In continuation, the history of teaching ratio and proportions from Arithmetica Danica until the latest textbook in Icelandic, Skali of 2016, is investigated and related to recent research on obstacles in proportional reasoning.is
dc.description.versionPeer revieweden
dc.format.extent11
dc.format.extent857853
dc.format.extent230-240
dc.identifier.citationBjarnadóttir, K 2018, Ratios and Proportions in Iceland 1716–2016. in G Schubring, L Fan & V Geraldo (eds), Proceedings of the Second International Conference on Mathematics Textbook Research and Development.. Instituto de Matemática, Universidade Federal do Rio de Janeiro, Rio de Janeiro, pp. 230-240, The Second International Conference on Mathematics Textbook Research and Development., Rio de Janeiro, Brazil, 7/05/17.en
dc.identifier.citationconferenceen
dc.identifier.isbn978-85-87674-33-3
dc.identifier.other221494694
dc.identifier.other08373b24-a2b8-4579-9ddf-92147d69179b
dc.identifier.urihttps://hdl.handle.net/20.500.11815/6168
dc.language.isoen
dc.publisherInstituto de Matemática, Universidade Federal do Rio de Janeiro
dc.relation.ispartofseriesProceedings of the Second International Conference on Mathematics Textbook Research and Development.; ()en
dc.rightsinfo:eu-repo/semantics/openAccessen
dc.subjectGeneral Mathematicsen
dc.titleRatios and Proportions in Iceland 1716–2016en
dc.type/dk/atira/pure/researchoutput/researchoutputtypes/contributiontobookanthology/chapteren

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