This project aims to create evidence-based resources for collaborative learning in science, engineering, mathematics, and technology (STEM) for K12 teachers. To determine the topics covered in the rich literature on collaborative learning, we have created a map of the research literature (Phase 1 of the project). We convened a panel of teachers and researchers to decide which topics would be most useful to the K-12 teachers (Phase 2). In Phase 3, we will consider what the resources for teachers will look like and bring together groups of teachers and researchers to create them.