The ASSURE model is a systematic plan for instructors to follow when planning classroom use of media and technology. It consists of 6 steps: Analyze Learners, State Objectives, Select Methods/Media/Materials, Utilize Media & Materials, Require Learner Participation, and Evaluate & Revise. The model guides instructors to understand learners, set clear objectives, choose appropriate instructional methods and materials, effectively use selected materials while engaging learners, and assess outcomes to improve future lessons.