In this article is presented a research on the transformation of mental representations of 102 students 14 years old for the color in in a teaching context of optics. The empirical data were collected through an interview with an open discussion based on four tasks before and after a teaching intervention by a researcher to a small number of student groups. The research results show that the teaching intervention allow the cognitive progress of learners and are a suitable tool for systematic didactic intervention on the color. Article visualizations
