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Proportion in Mathematics Textbooks in Upper Secondary School

Conference paper
Authors Anna L.V. Lundberg
Published in In M. Pytlak, E. Swoboda and T. Rowland (Eds.) Proceedings of the 7th Congress of the European Society for Research in Mathematics Education
Pages 336-345
ISBN 978-83-7338-683-9
Publication year 2011
Published at Department of Pedagogical, Curricular and Professional Studies
Pages 336-345
Language en
Keywords Proportion, Textbooks, Upper secondary school, Anthropological Theory of Didactics.
Subject categories Other Mathematics, Didactics


Proportional reasoning and knowledgeof proportion are prerequisites for success in higher studies in mathematics. The aim of this paper is to investigate what possibilities Swedish upper secondary school textbook tasks offer students to develop knowledge about proportion during the first course in mathematics. The threetextbooks investigatedin this paper show a variation in ―know – how‖ of proportional reasoning but less variation regarding knowledge about proportion.

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