“…Germeten, 2011;Hauge et al, 2014;Kurland et al, 2010;Priestley, 2011;Salfi, 2010;Thoonen et al, 2012) Involvement of teachers (Breiting, 2008;Desimone, 2002) Collegial support, collaboration (Coyle, 2008;Ketelaar et al, 2012;Könings et al, 2007;Pyhältö et al, 2011;Ramberg, 2014;Scott and Bagaka's, 2004) Competences, expertise, understanding (e.g. Coburn, 2005;Day et al, 2016;Ketelaar et al, 2012;Könings et al, 2007;Salonen-Hakomäki et al, 2016) Opportunities to learn (Guhn, 2009;Keesing-Styles et al, 2014;Mendenhall et al, 2013;Salfi, 2010) Attitudes (e.g. Binkhorst et al, 2015;Geijsel et al, 2001;Herscovitch and Mayer, 2002) National level reform determinants such as resources and political structures ranging from legislation to funding are shown to have an impact on the curriculum reform implementation (e.g.…”