En aquest article es mostra el desenvolupament d'una activitat realitzada a 5è de primària per a treballar el model canvi químic a través d'un conjunt d'experiments. L'activitat pretén ajudar els alumnes a construir el model canvi químic a partir de fenòmens de la vida quotidiana. En l'activitat es fomenta la reflexió i la verbalització dels fenòmens observats. Paraules clau: canvi químic, contextualitzar, treball experimental i model matèria The paper presents the development of an activity carried out with 11-year-old students with the purpose of working the chemical change's model through a set of experiments. The activity aims to build the concept of chemical change in contrast with the concept of mixture through the phenomena of our everyday lives. The activity promotes self-reflection and the verbalization of the phenomena.
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