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Man, lecturer and explain in classroom for lesson, college lecture and teaching students. Male professor, talking and learners listen for learning schedule, curriculum procedure and exam instructions
Discussion, plants or scientists in laboratory for research, discovery or project on medical innovation. Conversation, science and biologists working on botany for pharmaceutical development.
Caucasian tired woman take off glasses female overworked student stress school worker library health problem headache migraine head eyes strain businesswoman indoor business girl sad painful teacher
Flipping Spanish language book pages, reading and education, Flicking Through Old textbook Close-up, macro shot of paper in university library.
Focused elementary school girl writing at desk in classroom, doing homework or test, studying with classmates while teacher helps other children in the background.

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