professor writing on the board while having a chalk and blackboard lecture (shallow dof; color toned image) - 教授 個照片及圖片檔數學, 黑板, 教師
three diverse women engage in a collaborative meeting, smiling and discussing ideas around a table. - 教授 個照片及圖片檔大學, 教師, 黑人種族
happy teacher asking girl with hand raised sitting in classroom at elementary school - 教授 個照片及圖片檔教師, 課室, 學生
higher education line icon set contains university, master degree, professor, part time job, student, mortarboard, graduation and so on icons. - 教授 幅插畫檔、美工圖案、卡通及圖標大學, 教育, 讀書
rear view of male and female junior high students with hand raised while teacher teaching in classroom at school - 教授 個照片及圖片檔教師, 教育, 課室
smiling senior teacher assisting her student in e-learning over laptop in the classroom. - 教授 個照片及圖片檔學生, 大學, 電腦
