This project, through a cooperative agreement with the NSF, is establishing and maintaining the Discovery Research (DR) K–12 learning resource network, known as CADRE, with the aim of advancing the state of research and evaluation in STEM education and promoting the goals of the DR K–12 program. CADRE provides support services to grantees of this program, which enhances student and teacher learning of the STEM disciplines through the development, implementation, and study of resources, models, and technologies.