The International Center for Research on Women (ICRW) developed a participatory research action project in Tanzania to understand and address HIV-risk among adolescent girls and young women. The program centered around a life-skills manual, teaching girls about their rights, roles in society, and how to address their needs within their communities. This report goes into detail about the rigorous research methods used for monitoring and evaluation, how formative research was used to inform the program design, and key learnings from the project.