Abstract
This article discusses students’ perceptions as a source for understanding education. It addresses what didactically experienced children, called “didactikids”, taught us about the empty number line as a didactical model for teaching whole number calculations. The article mainly reports on a student consultancy study carried out in the Netherlands. The findings are similar to what was revealed in an Australian study. Both studies explain what can go wrong when the number line is applied rigidly and wrongly implemented.
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This paper is an extended version of a paper written in Dutch and published in a joint special issue of two Dutch journals (see Van den Heuvel-Panhuizen, 2005) produced to celebrate the centenary of Freudenthal’s birth.
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van den Heuvel-Panhuizen, M. Learning from “Didactikids”: An impetus for revisiting the empty number line. Math Ed Res J 20, 6–31 (2008). https://doi.org/10.1007/BF03217528
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DOI: https://doi.org/10.1007/BF03217528