In addition to the efforts mentioned here and here, COMAP is holding a three-day invitational conference in Washington, DC from April 29–May 1, funded by the National Science Foundation.  According to the PI Sol Garfunkel,  this working meeting will bring together about 70 representatives from mathematics education practitioner organizations, the two assessment consortia, state and national education policy groups, and major instructional materials development teams. The purpose is to build a productive dialogue between the key players in implementation of the Common Core State Standards. The conference will draw on the expertise of mathematics educators with responsibilities close to the everyday work of schools and specialists in curriculum materials development in order to inform the development of high quality assessments.