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.