Option C β non-verbal communication Communication in the classroom occurs not only through spoken or written words but also through non-verbal signals. Eye contact, facial expressions and gestures convey interest, encouragement and emotional tone without using language. These cues can support or contradict verbal messages and strongly influence how learners interpret teacher behaviour. Therefore, the behaviours described in the stem are examples of non-verbal communication.
Option A:
Written communication refers to messages conveyed through text, such as notes on the board, handouts or digital messages. Although crucial in teaching, it does not include eye contact or gestures, which are expressed physically rather than through written symbols. Hence, this option does not correctly represent the type of communication highlighted.
Option B:
Formal communication is usually defined in terms of official channels and structured messages within an organization, such as circulars or formal meetings. While classroom communication can be formal, the stem specifically emphasizes physical cues rather than institutional channels, so this label is too broad and not precise.
Option C:
Non-verbal communication includes posture, proximity, eye gaze, facial expressions and hand movements that accompany or replace spoken words. A teacherβs smile, nod or pointing gesture can clarify meaning and maintain attention without extra talk. Because the examples in the stem are all non-verbal cues, this option accurately names the form of communication involved.
Option D:
Mechanical communication is not a standard category in classroom communication theory and might be interpreted as communication through machines or routine signals. It does not specifically denote human bodily expressions and therefore does not match the description given in the question.
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