Open Assembly is a modular framework for assembling, adapting, and sharing open courseware using unbundled, bite-sized content. It is specifically designed for collaboration and content curation in flipped or online learning environments. Open Assembly allows instructors to customize or adapt digital curricula, collaborate with colleagues or peers, and personalize instruction. It helps students become creators, not consumers, of learning content, encourages responsible content sharing and curation, and facilitates the development of collaborative skills.