At the end of day 1, Helen, a 2nd grade classroomteacher, expressed skepticism that MEAs were simplyanother form of PBL that she had learned about in aprior professional development session. In her openingreflection on “What is STEM?,” she recalled her experiences as an engineering camp teacher and describedSTEM as a “way to create students who will grow to be21st century thinkers…people who will have a bettershot in our ever-evolving, innovative world.” The day 2