“…Cumulative evidence points to the pivotal role of young children's numerical abilities at school entry for their later mathematical and academic achievement (Chu, vanMarle, & Geary, ; Claessens, Duncan, & Engel, ; Duncan et al ., ; Geary & VanMarle, ; Martin, Cirino, Sharp, & Barnes, ; Nguyen et al ., ; Schneider et al ., ; Vanbinst, Ghesquière, & De Smedt, ). Recently, young children's spontaneous focus on the exact numerosity of a set of items in non‐mathematically focused situations (= SFON) has been shown to uniquely contribute to their early numerical abilities (Batchelor, Inglis, & Gilmore, ; Gray & Reeve, ; Hannula, Lepola, & Lehtinen, ; Hannula‐Sormunen, Lehtinen, & Räsänen, ; see also the recent reviews of Hannula‐Sormunen, ; Rathé, Torbeyns, Hannula‐Sormunen, De Smedt, & Verschaffel, ).…”