a stern-faced teacher with crossed arms stands rigidly upright, glaring disapprovingly at misbehaving students. Her expression shows no warmth or flexibility as she maintains perfect posture. The students immediately stop their disruptive behavior and shrink back in their seats. Their playful attitudes vanish as they face her cold, unforgiving stare. Other students in the background sit perfectly straight, afraid to make any movement. The classroom atmosphere becomes tense and silent under her harsh supervision. sternness and severity of manner and expression