Gabrielle received her PhD in Mathematics  from Johns Hopkins University.  She has worked as an adjunct instructor in mathematics and as a writer  and consultant. Projects have included developing elementary hands-on  science curricula, developing science content for a radio show airing  on National Public Radio, and reviewing the mathematics content delivery   system for Shepherdstown University. In 2009 she coauthored a  report for the Abell Foundation about the relationship between high  school mathematics curricula and college expectations in Maryland. Her paper entitled Notes  on Providing a Formal Definition of Equivalence is forthcoming  in a special issue of the Journal of Anthropological Theory.