Even though classroom discussion is considered an essential element of citizenship education, research indicates that pre-vocational students have fewer opportunities to practice with these discussions than their pre-academic peers. To provide more insight into pre-vocational teaching strategies to facilitate citizenship-related classroom discussions that allow for variation in familiarity with discussion, we analyzed observations of plenary discussion moments during 26 lessons at three Dutch secondary schools. Classrooms less familiar with discussion seem to benefit from a focus on structural aspects of discussion and avoiding strict content regulation, whereas classrooms more familiar with discussion profit from reflection on both process and content.