4K Mentor woman pink blouse headband holding tablet drawing students pointing teaching at school educator pupils device classroom 股票视频 Mentor woman pink blouse headband holding tablet drawing students pointing teaching at school educator pupils device classroom 股票视频
4K African american teacher in rust top guiding children using white laptop classroom to learn collaborative learning technology 股票视频 African american teacher in rust top guiding children using white laptop classroom to learn collaborative learning technology 股票视频
4K African american teens in courtyard with backpacks girl initiating hand game boy replying for fun duo peers students gestures 股票录像 African american teens in courtyard with backpacks girl initiating hand game boy replying for fun duo peers students gestures 股票录像
4K Two youths starting study session tapping and rotating tablets with keyboard folio at school table students classroom 影视素材 Two youths starting study session tapping and rotating tablets with keyboard folio at school table students classroom 影视素材
4K Diverse children boy placing sheet and drawing with pencil while making art girl watching on bench diverse children boy placing 股票录像 Diverse children boy placing sheet and drawing with pencil while making art girl watching on bench diverse children boy placing 股票录像
4K African girls pointing at notebook at school bench left writing with pen right holding paper african girls pointing at notebook at 股票视频 African girls pointing at notebook at school bench left writing with pen right holding paper african girls pointing at notebook at 股票视频
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