“…A great deal of research has been done on children's definition and perception of peace (Covell, Rose-Krasnor, & Fletcher, 1994;Hakvoort & Hagglund, 2001;Hakvoort & Oppenheimer, 1993;Hakvoort & Oppenheimer, 1998;McLernon & Cairnes, 2001;Oppenheimer & Kuipers, 2003). A considerable amount of research has been done on school climate (Banks, 2014;Brand, Felner, Shim, Seitsinger, & Dumas, 2003;Cohen, Mc-Cabe, Michelli, & Pickeral, 2009;Egeberg, McConney, & Price, 2016;Gage, Prykanowski, & Larson, 2014;Hernandez & Seem, 2004;Koth, Bradshaw, & Leaf, 2008;Thapa, Cohen, Guffey, Higgins-D'Alessandro, 2013;Turner, Reynolds, Lee, Subasic, & Bromhead, 2014). In these studies, it was concluded that children can feel the concept of peace from an early age in relation to their cognitive development, and positive school climate predicted many variables, such as academic achievement, self-esteem, and well-being.…”