The Center for Curriculum Materials in Science (CCMS) is an National Science Foundation (NSF)-funded Center for Learning and Teaching (CLT) that focuses on critical research and development issues related to improving curriculum materials for K-12 science. At the same time, the Center has the goal of fostering a new generation of leadership with specific expertise in the analysis, development, evaluation, and implementation of curriculum materials. The center involves partners from American Association for the Advancement of Science (AAAS) Project 2061, Michigan State University (MSU), Northwestern University (NWU), University of Michigan (UM), and Chicago, Detroit, and Lansing public schools.