The student council consists of all students in the school, and it is represented by the student council board. Board members are elected by voting, with each class selecting a main and an alternate member for one calendar year. Tervakoski School has an active student council board, with Annu Hyökyvaara and Rosanna Siljander-Simenius serving as the responsible teachers. The student council board meets once a month to discuss current issues and upcoming events.  Its tasks include practicing meeting skills, developing the school community’s activities, enhancing school spirit, and influencing issues related to students. The student council board annually organizes the now-traditional Valentine’s Day Halipäivä and the students’ Talent competition around May Day. Additionally, it arranges fun theme days to brighten up school life.