Theory on Blackboard

Prepare for lesson. Teacher bearded man cleaning chalkboard background. Teacher wiping chalkboard. School principal. Demanding teacher. Lecturer in classroom. Explaining theory. Teacher hold rag. Stock Photo ID: 370747495 Copyright: photosvit with permission from Bigstock.

File Name: Theory-on-Blackboard.jpg
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File size: 417.92 KB
Dimensions: 900 x 449
Date: May 3, 2022
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