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navigate by keyword : man teacher smile school lesson teaching job knowledge university more tools introduced into everyday classrooms senior chalkboard old generation experienced lecturer mature enjoying sharing education classroom class study college concept blackboard professor occupation training board standing presentation science lecture suit jacket male learning back work |
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Sharing knowledge. More tools introduced into everyday classrooms. Senior man teacher at chalkboard. Back to school. Teacher old school generation. Experienced lecturer. Mature teacher enjoying job. |
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