“…In particular, the attainment of basic numeracy skills is rarely considered as a form of expertise acquisition, and nor are difficulties with the learning of numeracy skills seen as problems in the acquisition of expertise (e.g., a lack of practice). Instead, learning difficulties are often seen as resulting from some neurological or developmental disorder that adversely affects a child's ability to learn mathematics (Clark et al, 2014; Haase et al, 2014), or some systemic issue related to the school system (Ramsden, 1984; Biggs, 1999; van Kraayenoord and Elkins, 2004) or the child's culture (Whitburn, 1996) or SES (OECD, 2013). And yet, numeracy skills, particularly those related to early learning of arithmetic and number facts, share features with many examples of expertise.…”