Every Directorate of NSF currently supports productive programs of research bearing on children, learning, or transition to the workforce. At the same time, it is recognized that disciplinary boundaries create barriers to cross-disciplinary interactions and integration. NSF is unique among the Federal granting agencies in its ability to support the building of bridges across many areas of science simultaneously. It is in this spirit that NSF is offering supplements to the awards of NSF grantees who are working in these areas, for the purpose of teaching others about their respective research and identifying common themes and potential collaborations.