The document discusses instructional design (ID) for distance learning. It presents the CORE ID framework for online instruction, which includes criterion referencing and strategic planning, organizing content and delivery, and requiring learner participation and evaluating processes and outcomes. Key instructional design models and learning theories that inform the framework are also summarized, including Gagne's nine events of instruction, Bloom's taxonomy, Bruner's constructivism, Bandura's social learning theory, and Vygotsky's zone of proximal development.