Chalkboard and male professor. College class or university teacher teach at old blackboard in classroom. Academic physics class board teaching of english sociology math cartoon vector illustration premium vector by tartila.stock.gmail.com

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illustration person human young people cheerful board male man old cartoon character school occupation professional work job seminar Presentation elementary learning education science learn profession study college student University lesson standing senior knowledge physics teaching teach teacher class professor blackboard classroom chalk english lecture math scholar chalkboard academic

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