The document discusses the ADDIE model of instructional design. ADDIE is an acronym that stands for Analyze, Design, Develop, Implement, and Evaluate, which are the five key phases of a common instructional design process. Each phase is described in detail, including needs analysis in Analyze, creating objectives and testing strategies in Design, developing lesson plans and materials in Develop, delivering instruction in Implement, and evaluating effectiveness in Evaluate. The document emphasizes that instructional design considers factors like learning objectives, learner characteristics, and evaluation to create effective instruction.