The document discusses the concepts of gender, sex, and socialization. It traces the evolution of approaches to promoting gender equality from Women in Development (WID) to Gender and Development (GAD) to the current approach of Gender Mainstreaming (GM). WID focused on women's practical needs but reinforced stereotypes. GAD examined unequal power relations and gender relations but was difficult to implement. GM aims to institutionalize gender sensitivity by integrating a gender perspective into all policies from the start. However, effectively applying gender mainstreaming remains a challenge.