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ensure accuracy. Mathematics Learning in Early Childhood: Paths
Toward Excellence and Equity mathematical development (e.g.,
Barth et al., 2005; Butterworth, 2005; Dehaene, 1997; but see
Holloway and Ansari, 2008, and Rips, Bloomfield, and Asmuth,
2008, for contrasting views). We examine two domains that are
foundational to mathematics in early childhood: (1) number,
including operations, and (2) spatial thinking, geometry, and
measurement. What are some of the important developmental
changes in mathematical understandings in these domains that
occur during the preschool years? What is the relation of
mathematical development to more general aspects of development
needed for learning mathematics, such as the ability to regulate
one’s behavior and attention? EVIDENCE FOR EARLY UNDERSTANDING
OF NUMBER Preverbal Number Knowledge Del