teacher explaining mathematical formulas chalkboard classroom vector illustration |
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| navigate by keyword : teacher man male person adult glasses hair happy smile education school classroom chalkboard board math mathematics formulas explanation lesson teaching knowledge learning student study academic profession occupation uniform tie shirt pants shoes standing pointing gesture cartoon character vector blackboard graph chart numbers symbols writing concept |
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| Male teacher in blue shirt and red tie points at mathematical formulas on green chalkboard, conveying education and learning with cheerful mood. Generative AI |
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