The Elements of Instruction provides a common vocabulary and conceptual scheme of teaching and learning that is fully applicable to all forms of instruction in our digital-centric era. This critical examination of educational technology's contemporary semantics and constructs fills a major gap in the logical foundations of instruction, with special attention to the patterns of communication among facilitators, learners, and resources. The book proposes a new framework for organizing research and theory, clear concepts and definitions for its basic elements, and a new typology of teaching-learning arrangements to simplify the selection of optimal conditions for a variety of learning goals. As trends in media, technology, and methodology continue to evolve, these historically contextual, back-to-basics pedagogical tools will be invaluable to all instructional designers and educational researchers.