This paper provides a detailed account of a participatory action research project carried out with trainee teachers in Chile. Two participant cohorts embarked upon a research study seeking to identify instances of violence and exclusion in their classrooms. Such exploration was conducted through a series of participatory workshops that explored the link between violence and inequality, as well as how nonviolent approaches might assist in fostering more inclusive learning environments. Both participatory action research (PAR) and workshops as a research methodology constitute novel approaches within the Chilean context, where a large number of studies interrogating issues of inequality and classroom violence are of a descriptive rather than empirical nature. Consequently, this paper gives a rationale for using PAR in the first place, then provides a detailed account of how each iteration was designed, the changes that were made in between and the degree of participation achieved with each cohort. Further, the paper makes an argument for a wider use of PAR as a method that strives for social justice and equity in education, while at the same time exploring its advantages, common critiques, and the challenges encountered during the study. Finally, and in light of what transpired in this study, this paper posits that workshops constitute a sustainable participatory research method that provides space for collaboration, creativity, and self-inquiry, while considering several improvements and modifications for future studies.