Abstract

This paper addresses the worrying lack of training in proportionality among teachers and future teachers of Primary Education. A review of the literature and the realization of a survey, a lack of knowledge and skills on the subject of proportionality is evidenced. This lack of training can have negative consequences in the learning of Primary Education students, who do not receive an adequate education in proportionality. The conclusions highlight the need to promote good teacher training in proportionality, since the vast majority of teachers and future teachers are limited to using decontextualized methods without knowing how to identify magnitudes or situations of proportionality. This study highlights the need to promote awareness and importance of proportionality in the primary mathematics curriculum, and emphasizes the importance of improving teacher training to address the lack of knowledge in proportionality among primary school teachers and future teachers.

Keywords: Proportionality, Teacher training, Proportional reasoning and rule of three