Mendoza started a group in East San Jose called “United People Arriba”. United People Arriba watched the police. They watch that people of color were treated equally to white people. She also lead a walk-out. The protest was to stop discrimination in local schools. The government counts the number of students in school to know how much money to give the school. In this walk-out, Sofia Mendoza proved that students had the power to not show up. This action could cause the school to lose money. 