When the three-story 45,000-sf Constance and Miguel Fernandez STEM Center for Science and Math opened last September at the entrance of the historic Ransom Everglades School campus in Coconut Grove, Fla., it created a new quad with an outdoor theater and classrooms, art exhibition space, and an outdoor student green. But one thing the new building didn’t have was private offices. New K-12 projects eschewing faculty offices.