“…In general, EE will likely not outperform classroom teaching in improving academic outcomes as measured using traditional assessments except in special contexts (see below). EE curriculum (e.g., Project Learning Tree, Project WILD) and approaches (e.g., the NAAEE Guidelines for Excellence: NAAEE, 2010) are rooted in educational theory and research, employing constructivist approaches to teach interdisciplinary concepts (e.g., natural sciences, civic engagement) in authentic settings (e.g., the natural world) (Carrier and Stevenson, 2017). However, classroom approaches and teacher training programs have also benefitted from this same theory and research, in an arguably more focused, long-term, and larger scale manner.…”