What instructional method incorporates training aids to clarify main points during a presentation?

The instructional method that incorporates training aids to clarify main points during a presentation is the lesson. Lessons are structured educational experiences that combine a range of teaching techniques, which often include the use of training aids like slides, models, charts, or videos. These aids serve to enhance understanding and retention of the material by providing visual or practical context to the information presented.

This method is designed to engage learners more actively by reinforcing the key concepts and facilitating a clearer understanding of the subject matter. In contrast, while lectures may also utilize training aids, they tend to be more one-sided, focusing primarily on the instructor's delivery rather than the interactive and comprehensive nature of a lesson. Discussions are more focused on dialogue between learners rather than structured delivery of content, and field training typically emphasizes practical, hands-on experiences outside of a formal instructional setting. Thus, the lesson is the most appropriate method for clarity through the use of training aids.