“…CASs, which are developed as software that can make symbolic computation besides numerical computation for solving mathematical problems, have been obtained by extending standard numerical programming languages such as C, Pascal and Fortran (Aktümen, 2007). It is understood that the educational activities carried out through CASs positively affect students' levels of conceptual understanding (Aksoy, 2007;Ghosh, 2003;Kabaca, 2006;Sevimli, 2013;Sevimli & Delice, 2015), problem solving skills (Aktümen, 2007;Sevimli, 2013;Tuluk, 2007), academic achievements (Aksoy, 2007;Bulut, 2009;Stephens & Konvalina;1999), operational skills (Bulut, 2009;Sevimli, 2013), mathematical thinkings (Bulut, 2009;Tuluk, 2007) and their attitudes towards mathematics (Aksoy, 2007;Aktümen, 2007;Aktümen & Kaçar, 2008;Kabaca, 2006;Tuluk;. Likewise, similar results were emphasized in the literature reviews dealing with the teaching activities in which CASs had been used (Buteau, Marshall, Jarvis & Lavicza, 2010;Lavicza, 2008; Marshall, Buteau, Jarvis & Lavicza; 2012).…”