“…It is possible to talk about the effects of mind games on children in cognitive, affective and social areas. When considered cognitively, mind games were revealed to improve students' thinking skills (Bottino & Ott, 2006;Kula, 2020), mathematical skills (Bottino, Ferlino, Ott & Tavella, 2007;Erdoğan, Eryılmaz-Çevirgen & Atasay, 2017;Saygı & Alkaş-Ulusoy, 2019;Ulusoy, Saygı & Umay, 2017), mathematical reasoning skills (Reiter, Thornton & Vennebush, 2014;Yöndemli & Doğan-Taş, 2018), problem solving and reasoning skills (Bottino & Ott, 2006;Kurbal, 2015;Şahin, 2019), critical thinking skills (Dewar, 2012;Savaş, 2019), creative thinking skill (Ott & Pozzi, 2012), spatial skills (Zeybek & Saygı, 2018;Yang & Chen, 2010), attention and visual perception (Altun, 2017 ), and strategy use (Best, 1990). Mind games also improve geometric thinking level (Dokumacı-Sütçü, 2018;Siew & Abdullah, 2012) and mental skill level (intensifying attention, strategic thinking, analysis, establishing the part-whole relationship, visual perception and benefiting from clues) (Marangoz & Demirtaş, 2017).…”