This document discusses key concepts related to gender, participatory research approaches, and transformative gender research. It defines terms like sex, gender, gender equality, gender equity, gender division of labor, and gender relations. It also discusses the principles and levels of participatory research, from passive participation to interactive and self-motivated participation. Transformative gender research is defined as integrating efforts to address gender disparities in access and control over resources with actions to address underlying social norms and power relations.