In genetics education, symbols are used for alleles to visualize them and to explain probabilities of progeny and inheritance paradigms. In this study, we identified symbol systems used in genetics textbooks and the justifications provided for changes in the symbol systems. Moreover, we wanted to understand how students justify the use of…

This study explores how teachers visualize their professional persona. It is based on six case studies of female teachers in Israel, who photographed themselves at work, focusing on images of ideal situations of teaching. The study explores the self-perceptions of the teachers, which led to the construction of the images, by analysis of the signs…