The decadal plan for the LTER emphasized the need to develop an environmental science literacy framework around learning progressions within core science and mathematics concepts complemented with citizenship.  In response to this charge we developed a cross-site collaboration funded by the NSF Mathematics and Science Partnership program to (a) engage teachers around four LTER sites (BES, KBS, SBC, and SGS) in long-term professional development; (b) develop frameworks and assessments for learning progressions leading to environmental science literacy for carbon cycling, water systems, and biodiversity in socio-ecological systems; and (c) develop teaching resources for these content areas and test their effectiveness in urban, suburban, and rural school districts.  Our current effort involves four LTER sites, the LTER Network Office and 22 K-12 schools/districts.  We want to expand our effort and include additional LTER sites and the insights of their scientists and educators and to discuss how this work and other sites could contribute to implementation of the LTER education decadal plan.  We propose short presentations followed by open discussions.