Which method is described as the most common approach to direct instruction?

• A. Field testing
• B. Observation
• C. Andragogy
• D. Instructor-led approach

Answer: (D)

Direct instruction is delivered through explicit, teacher-centered guidance, where the instructor leads the lesson with clear objectives, demonstrations, guided practice, and immediate feedback. The instructor-led approach is the most common way to deliver this explicit instruction because it provides a structured, paced, and standardized delivery that helps learners quickly acquire essential skills and safety procedures, while allowing the instructor to correct misconceptions on the spot. Other options describe different ideas: field testing is about evaluating materials in real settings; observation refers to watching learners or processes; andragogy is a theory about how adults learn, not the delivery method itself.