Criterios valorativos y normativos en la Didáctica de las Matemáticas: el caso del constructo idoneidad didáctica

Abstract In various investigations, the following phenomenon has been observed: the didactical suitability criteria proposed by the Ontosemiotic Approach function as regularities in teachers’ speech when they justify that their didactic proposals represent an improvement, without having been taught the use of this tool to guide their reflection. This article explains this phenomenon by placing the didactical suitability construct in the problematic on the role of assessments and normative principles in teacher practice. More generally, there is a theoretical development of the didactical sui...