Facial expressions and vocal tone can improve which aspect of teaching?

Facial expressions and vocal tone significantly enhance presentation skills, as they are key elements of nonverbal communication that can engage students and convey enthusiasm for the material being taught. When a teacher uses varied facial expressions, it helps to illustrate points and emotions, making lessons more relatable and understandable. Vocal tone, including pitch, volume, and inflection, can create a dynamic atmosphere in the classroom, capturing students' attention and maintaining interest. Together, these skills can make presentations more impactful, aiding in student comprehension and retention of the material. This is why presentation skills are directly improved by utilizing effective facial expressions and vocal tone.