La enseñanza del concepto de pureza : el papel de la historia y epistemología de las ciencias en el desarrollo de cambios didácticos en un profesor de química en educación superior

Abstract

The purpose of the research project was to promote professional enrichment in a university teacher from a didactic change, based on two research lines of Didactics of Experimental Sciences. The methodological development was based on qualitative research with a focus on action research. Through cooperative work, based on the paradigm of internalist learning, the following was allowed: reflection on its epistemology and teaching practice, together with the construction and application of a didactic unit on the concept of purity from a historical and epistemological perspective. In the results, a favorable and significant evolution was observed for the indicators proposed in the established categories. In addition to this, it is concluded that cooperative work is an adequate strategy to favor the permanent training of teachers, achieving to be an alternative to benefit the construction of knowledge, ideas, beliefs and coherent decisions from contemporary didactic investigations, apart of affirming that the didactic change is a complex process that requires significant time and an assertive attitude.