male teacher explaining math formulas green chalkboard classroom vector illustration |
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| navigate by keyword : teacher man male glasses classroom chalkboard blackboard math mathematics formula equation education learning knowledge school professor lecture teaching student study academic science vector board pointer smiling person character cartoon concept communication explanation work profession lesson training instruction transfer intelligence skill system chalk writing university college subject process materials |
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| Illustration shows a male teacher in glasses pointing at mathematical formulas on a green chalkboard in a classroom, conveying education and knowledge. Cheerful mood. Generative AI |
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