Mathematics education discourse routinely promotes the idea that mathematics is everywhere. That mathematics is everywhere seems a reasonable implication of "We all use math everyday." Modern technology, mostly in the form of computational devices and control systems, is often cited as evidence of the omnipresence of mathematics.…

This article provides a conceptual account and empirical analyses of the development of "boundary-crossing competence"--the ability to function competently in multiple contexts--using representative cases from two after-school programs with immigrant and low-socioeconomic status students. Our findings suggest that organizational designs…