Magnitude knowledge: the common core of numerical development.

  title={Magnitude knowledge: the common core of numerical development.},
  author={Robert S. Siegler},
  journal={Developmental science},
  volume={19 3},
The integrated theory of numerical development posits that a central theme of numerical development from infancy to adulthood is progressive broadening of the types and ranges of numbers whose magnitudes are accurately represented. The process includes four overlapping trends: (1) representing increasingly precisely the magnitudes of non-symbolic numbers, (2) connecting small symbolic numbers to their non-symbolic referents, (3) extending understanding from smaller to larger whole numbers, and… CONTINUE READING