“…The majority of K-12 teachers do not have experience participating in science or engineering, and in any case, short-term efforts (e.g., research experiences for teachers (RET) models) promote inconsistent improvements in classroom practice (Brown & Melear, 2007;Raphael, Tobias, & Greenberg, 1999;Sadler, Burgin, McKinney, & Ponjuan, 2010;Schwartz, Lederman, & Crawford, 2004). Furthermore, without firsthand experiences they do not have engineering contexts on which to reflect in order to develop understanding about engineering, and the relationships between science and engineering.…”