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Medium shot of black male student standing at blackboard and looking at equations written on it when answering teacher’s questions
Students listen and answer the teacher's questions, standing at the map which hangs on the Board.
Portrait shot of cute little girl with blond hair standing against blackboard and raising her hand to answer question
Portrait shot of smart little African-American boy in glasses standing before blackboard and raising his hand to answer question
Portrait of a proud smart smiling young man standing in front of a complex problem such as a math or science formula on a blackboard
Happy smiling professor, scientist, or math genius looking directly at the camera standing in front of a blackboard
Handheld shot of friendly male professor standing at blackboard and explaining equations written on it, then turning to students and asking questions
Student standing at the blackboard writing with chalk
Smiling student standing with bag and notebooks
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