Which type of lecture method involves heavy use of visual aids?

The illustrated talk is characterized by its heavy use of visual aids to enhance understanding and retention of information. This method often incorporates slides, charts, diagrams, or even physical objects to support the narrative and make complex concepts more accessible to the audience. The use of visuals not only engages listeners but also helps to clarify the spoken content, making it easier to visualize and comprehend the material being presented.

In contrast, a briefing generally conveys information in a concise manner with minimal use of visual elements, while a teaching lecture focuses primarily on delivering instructional content in a structured format, often relying on the speaker's verbal communication rather than visual support. A formal speech, while it may use some visual aids, typically emphasizes the oratory skills of the presenter and does not prioritize the integration of visuals to the same extent as an illustrated talk.