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Dissatisfied teacher looking at student who talking on smartphone in classroom

Selective focus of teacher showing something to student

Female teacher sitting at desk and pointing at something in classroom

Teacher pointing at equations in classroom with student

Female teacher sitting at desk near laptop while student standing near chalkboard

Female professor pointing at chalkboard with equations during lesson

Female teacher pointing at equations to student in classroom

Dedication to teaching. Man teach woman rear view. Teacher and girl student in classroom. Education in university or home schooling. Examination or lesson. Back to school.

Female teacher sitting at computer desk, holding glasses and having headache in class

Beautiful young teacher writing with chalk on blackboard

Schoolkids sitting at desks near classmate near chalkboard with class work lettering

Cropped view of male student wiping mathematical equations with sponge in classroom

Young attractive teacher pointing at blank chalkboard

Selective focus of upset schoolboy standing near chalkboard and classmate with raised hand

Panoramic shot of schoolkgirl standing near chalkboard with class work lettering and classmates with raised hands

Young beautiful teacher pointing at chalkboard

Selective focus of schoolkgirl standing near chalkboard with class work lettering and classmates with raised hands