When speaking, the instructor should use voice fluctuations to:

Using voice fluctuations when speaking is an essential technique for effective communication, especially in an educational context. This approach helps to emphasize critical points, engage the audience, and maintain their attention. By varying tone, pitch, and volume, an instructor can convey enthusiasm, urgency, or importance, which is often necessary for ensuring that key concepts are not only presented but also retained by students.

Incorporating voice modulation can enhance storytelling or explanatory segments of a lesson, making the material livelier and more relatable, which ultimately aids in the learning process. This technique invites active listening and can stimulate students' interest and engagement, leading to a more interactive and dynamic classroom experience.

While voice fluctuations can also be used in response to student interactions and feedback, the primary purpose in this context is to effectively communicate and reinforce learning points. This understanding highlights the importance of presentation skills as part of a fire and life safety educator's role.