“…The existence of SFON and its association with mathematical ability has been replicated in many studies (see, Rathé, Torbeyns, Hannula‐Sormunen, De Smedt, & Verschaffel, ; for a review). Studies have also tested psychometric properties of SFON tasks (e.g., Batchelor, ), explored the association between SFON and mathematical difficulties (e.g., Gray & Reeve, ; Kucian et al ., ), and investigated SFON in a diversity of cultural settings (Batchelor, Inglis, & Gilmore, ; Bojorque, Torbeyns, Hannula‐Sormunen, Van Nijlen, & Verschaffel, ; Edens & Potter, ; Rathé, Torbeyns, Hannula‐Sormunen, & Verschaffel, ; Sella, Berteletti, Lucangeli, & Zorzi, ). Although SFON has recently been identified as an important factor for explaining individual differences in early mathematical development, little research has been done on the potential mechanism by which this SFON tendency contributes to mathematics achievement.…”