“…Results of comparisons of student outcomes in classrooms conducted by Lead Teachers using STS methods and content with outcomes in classrooms where traditional materials and teaching strategies were used have been reported previously (Yager, 1987;1989a;1989b;Yager, in press;Yager, Myers, Blunck, & McComas, in press). Generally, these studies have focused on student outcomes in five domains as described by Yager and McCormack (1989), including concepts, processes, attitude, creativity, and applications.…”