Yelland, Nicola and Kilderry, Anna (2010) Becoming numerate with information technologies in the twenty-first century. International Journal of Early Childhood Education, 18 (2). pp. 91-106. ISSN 0966-9760 (Print), 1469-8463 (Online) (doi:https://doi.org/10.1080/09669760.2010.494426)