The exterior, with its grey corrugated metal panels and yellow composite metal paneling, is reminiscent of stacked cargo containers, paying homage to the site’s rich maritime commercial history. Phase 1 of the project is positioned to provide the maximum space needed to create both an additional building as well as outdoor learning spaces for the Philadelphia region’s booming student population. The first phase of MaST II Tacony opened at capacity, housing 600 students in roughly 30 classrooms, complete with specialized learning spaces to accommodate a modernized STEM education program.