Voice modulation during teaching is the example of
- ASkill of reinforcement
- BSkill of closure
- CSkill of stimulus variation
- DSkill of introduction
Solution & Step-by-step Explanation
Skill of stimulus variation involves a teacher deliberately altering their instructional behaviors to keep student attention high and prevent monotony. This includes moving around the room, changing gestures, shifting sensory channels, and adjusting speech patterns through voice modulation (altering volume, pitch, and speed).