Mužský učitel volá na studenta, aby odpověděl na otázku - Stock fotografie a obrázky

Male teacher calling on student to answer a question

Male teacher writes on blackboard with a chalk

Male teacher writes on blackboard with a chalk

Male teacher calling on student to answer a question

Male teacher writes on blackboard with a chalk

Male teacher writes on blackboard with a chalk

Male teacher calling on student to answer a question

Male teacher writes on blackboard with a chalk

The image of speaker

Portrait of a bald headed man

Portrait of a doctor

Portrait of a doctor

The image of a master

Portrait of a bald headed man

Portrait of a bald headed man

Portrait of a bald headed man

Portrait of a man close up

Portrait of a bald headed man

Portrait of a bald headed man