What action does the implementation phase involve?

The implementation phase primarily involves conducting instruction, which is a critical step in the educational process after planning and developing the instructional materials and strategies. During this phase, educators or trainers deliver the content to learners, employing various teaching techniques tailored to meet the objectives set during the planning stages. This phase focuses on engaging students directly in the learning process, facilitating understanding, and ensuring that the material is effectively communicated.

In contrast, conducting assessment would typically occur before or after the implementation phase to gauge learners' prior knowledge or measure learning outcomes respectively. Conducting research is related to the initial phases of instructional design where data is gathered to inform the planning. Conducting evaluation usually follows the implementation phase to assess the effectiveness of the instruction, determining whether the objectives were met and identifying areas for improvement. Therefore, conducting instruction marks the active delivery of content to learners during the implementation phase.