young woman teacher college instruction university classroom blackboard described chalk projection from |
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| navigate by keyword : adult background blackboard books casual caucasian class classroom college communication computer desk difficult education elementary female figures formula friendly girl green group happy knowledge laptop learn learning lecture lesson library lifestyle man mathematics people school sitting smiling student study studying supplies teacher teaching technology university using woman working write young |
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| Smiling female teacher. Young woman teacher in college. Instruction in a university classroom. Blackboard described by chalk. Projection from the data projector |
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