“…Parents, teachers, and policy makers appear to believe that early experiences are important to numeracy development (Anderson, 1998; Charlesworth & Lind, 1999; Ginsberg, Klein, & Starkey, 1998). Accordingly, a plethora of materials is available describing activities for developing math skills (e.g., Ashlock, 1990; Balfanz, Ginsburg, & Greenes, 2003; Caldwell, 1998; Mirra, 2005; National Association for the Education of Young Children, 2006; National Council of Teachers of Mathematics, 2000; Rich, 1995) and governments are encouraging a focus on mathematics by offering early numeracy grants as incentives to schools (Manitoba Ministry of Education, Citizenship, & Youth, 2003). The present results provide support for the view that participation in mathematical activities at home is related to children’s acquisition of mathematics in school and suggest that such activities are valuable when they occur in a variety of contexts.…”