The study characterizes latent aspects of masculinity that present implications for individual and collective learning in a class of secondary education. Physics classes of first year students were observed for one academic year. A microanalysis of a thematic unit - recorded on audio and video - in an activity that simulates the work of a scientific community characterizes the predominant interactions between the boys. Some manifestations of masculinity were predominant among boys in classroom activities that were challenging and competitive and others, in which rules had to be observed. Results suggest the kind of circumstances in which such masculinities might be manifested jeopardizing the development of classroom activities and the dynamics of learning groups
representations of masculinity; teaching of Physics; research activities