“…Studies have indicated that elementary teachers tend to be unfamiliar with design, engineering, and technology; hold overly broad views about the work of engineers; and have conceptions that do not necessarily align with the NGSS definitions of engineering disciplinary core ideas and practices (Cunningham, Lachapelle, & Lindgren-Streicher, 2006;Hammack & Ivy, 2017;Hsu, Purzer, & Cardella, 2011). Furthermore, research has indicated that there is variability in elementary teachers' perceptions of how to teach engineering design and how to respond to students' design ideas (Capobianco, Diefes-Dux, & Mena, 2011;McCormick et al, 2014;Wendell, Swenson, & Dalvi, 2016). Teachers may adopt a conventional teacherdirected approach whereby students use a step-by-step linear process to problem-solving and teachers instruct students in science concepts to apply to the engineering problem, and/or teachers may operate from a student-constructivist frame of learning encouraging student sense-making of the design process to figure things out.…”