Přednáška probíhá. Hezká inteligentní přednášející je psaní matematických vzorců - Stock fotografie a obrázky

Quick quiz. Lecturer turns around and asks a few simple questions to all the students

Mature male teacher writing on greenboard while teaching students in classroom

Senior male teacher teaching mathematics, writing on the blackboard

Hes dedicated to his students. a college professor giving a lesson to his students in the lecture hall

Desire to answer. Female young student in a group raises her arm in order to answer the question

Brief revisal. Young male college professor is busy with explaining and revising the lecture he has given

Love your job. Smiling kind teacher explaining sums standing near the blackboard in the classroom.

Showing erudition. Attentive school girl working at the blackboard in front of her class during maths.

Writing for everyone. Attractive female teacher is busy writing on the whiteboard during the lesson

Difficult learning. Upset pupil bending his head over the blackboard trying to do sums.

In front of the class. Smiling pupil doing sums on the blackboard on the gaze of her teacher.

Preparing exercises. Beautiful concentrated teacher writing the task on the blackboard for her maths lesson.