Sorridente jovem professor em óculos olhando para alunas estudando na biblioteca - Banco de fotos e imagens

Smiling young teacher in eyeglasses looking at schoolgirl studying in library

Smiling young teacher in eyeglasses looking at schoolchildren studying in library

Group of classmates standing around teacher at classroom and having fun

Group of high school students doing experiments on chemistry class with their teacher.

Clever children cracking the code, little bloggers sitting at the laptop. close up photo

Cropped shot of adorable smiling schoolchildren sitting together in library

Group of multiethnic classmates standing around teacher at classroom

Top view of schoolgirls talking while sitting at desk in school

Fashionable magazine editors working with documents in modern office

Teacher walking by classroom during lesson and talking to little schoolboy

Concentrated beautiful schoolgirls sitting in class

Group of multiethnic students discussing homework at classroom

Attractive young teacher giving lesson to kids in library

Rear view of student raising hand to answer at question of teacher