“…Elementary classroom teachers play a crucial role in incorporating PA in both the classroom and school by collaborating with physical education teachers, administrators, families, and other school staff (Hall, Little, & Heidorn, 2011;Russ, Webster, Beets, & Phillips, 2015). Several studies have emphasized that physical education teachers should be the leaders in implementing CSPAP in schools (Webster, Nesbitt, & Lee, 2017;Webster et al, 2016;Zhang, Gu, Zhang, Keller, & Chen, 2018).…”