hand teacher ringing the bell start class
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Stockphotos.ro (c) 2026. All stock photos are provided by Dreamstime and are copyrighted by their respective owners.
hand teacher ringing the bell start class |
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| navigate by keyword : announcement attention auditory authoritarian authority back beginning bell blackboard chalkboard class classroom commencement concept control desk discipline education educational hand headmaster instruction learning lesson management metal method order pedagogy principal professor ringing routine schedule school signal sound start strict symbol teacher teaching time tools tradition unrecognizable vacation |
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| Auditory signal for class management and to start the class |
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Stockphotos.ro (c) 2026. All stock photos are provided by Dreamstime and are copyrighted by their respective owners. |
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