the teacher university standing front blackboard with formulas giving lecture about science physics flat style vector |
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| navigate by keyword : art blackboard board cartoon chalk chalkboard chemistry class classroom college design drawing education educator equation flat formula illustration knowledge learning lecture lesson math mathematics person physical physics professional professor school science scientific scientist sign solution standing student study symbol teach teacher theory training tutor university vector work |
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| The teacher of university standing in front of a blackboard with formulas giving a lecture about science physics.Flat style vector illustration. |
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