Active and cooperative learning is integral to many social science classes, as it increases student motivation, improves communication skills, and stimulates creative thinking. Many political science departments break large lectures down into smaller, weekly tutorial groups to foster active learning. But do all students participate equally in active, participatory learning? We use an original dataset measuring self-reported participation and a number of important predictors (student gender, race, and language proficiency) collected from 700 undergraduate students in 91 political science tutorials. We find that participation does vary across social groups, even when controlling for psychological and some contextual factors. Female students participate significantly less than males, racial minorities report speaking less frequently than white students, and students with lower English-proficiency (the language of instruction) also participate less. In light of these findings, we offer suggestions for instructors on how to motivate all students to find their voice in the classroom.