“…Prior research emphasizes the role of language (e.g. Alloway & Passolunghi, 2011;Kleemans, Segers, & Verhoeven, 2011;Krajewski & Schneider, 2009;LeFevre et al, 2010;Noël, 2009;Passolunghi, Vercelloni, & Schadee, 2007;Purpura & Ganley, 2014;Purpura & Reid, 2016;Zuber, Pixner, Moeller, & Nuerk, 2009), general intelligence (Deary, Strand, Smith, & Fernandes, 2007, verbal and visuo-spatial working memory (Holmes, Adams, & Hamilton, 2008;Hornung et al, 2014;Nath & Szücs, 2014;Szücs, Devine, Soltesz, Nobes, & Gabriel, 2013), and executive functions (Bull, Johnston, & Roy, 1999;Cameron et al, 2012;Clements & Sarama, 2015;Cragg & Gilmore, 2014;Szücs, Devine, Soltesz, Nobes, & Gabriel, 2014; Van de WeijerBergsma, Kroesbergen, & Van Luit, 2015) for mathematical development.Besides the afore-mentioned factors, the literature suggests that spatial skills is another construct that should be considered when investigating numerical development.
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