“…Reviewing the research studies depending on these criteria; 78 master's thesis, 9 doctoral dissertations, 55 journal articles with a total of 142 studies were determined. Themes and subthemes were constituted from these studies through content analysis, which is one of the qualitative data analysis methods Demir and Açar, 2010;Demirezen and Akhan, 2016;Eldeniz-Çetin and Acay-Sözbir, 2016;Ertunç, 2008;Gün-Şahin and Gürbüz, 2016;Toy, 2015;Toy and Duru, 2016) whereas 16 studies examined the competencies of teachers about the teaching activities in the classroom (Akcan, 2013;Akcan and İlgar, 2016;Aktaş and Tekinarslan-Çifci, 2016;Avcılar, 2010;Boz, 2012;Çuhadar, 2006;Kaya, 2011;Koç, 2012;Kot, Sönmez, Yıkmış and Çiftçi-Tekinarslan, 2015;Nizamoğlu, 2006;Önder, 2007;Özdemir, 2008;Sazak-Pınar, Sucuoğlu and Çıkrıkçı-Demirtaşlı, 2013;Tas, 2011;Vural, 2008;Vural and Yıkmış, 2008).…”