A large covered space is required to accommodate the numerous activities for the high school that has 3000 students. It has to be built economically, use as little energies as possible, and be the most versatile in terms of use. A simple collection of geometric volumes that house function rooms and table tennis spaces are the structural supports for the large trussed covered area with skylights. Opened on all sides, the space is naturally ventilated, shaded away from the fierce sun, and allows graduation ceremony, large school events, and sports activities.