“…Examples of studies focused on new curriculum efforts include: Rusk, Brubaker, Balschweid, and Pajor, (2006); Salle, Edgar, and Johnson, (2013); Sapp and Thoron, (2014); Schafbuch, Vincent, Mazur, Watson, and Westneat, (2016); Skelton, Stair, Dormody, and Vanleeuwen, (2014); and Wagler et al, (2008). The inclusion of new curriculum involving farm safety (Schafbuch et al, 2016), biodiesel (Salle et al, 2013), swine (Wagler et al, 2008, and livestock ethics (Rusk et al, 2006) all increased student knowledge in learning constructs measured. Four studies investigated the enhancement of existing agriculture curriculum with math (Edwards & Leising, 2009;Parr, Edwards, & Leising, 2006;Parr, Edwards, & Leising, 2008;Young, Edwards, & Leising, 2009).…”