Quiz rapide. Le conférencier se retourne et pose quelques questions simples à tous les étudiants - Photo & image de stock

Lecture in progress. Nice-looking intelligent lecturer is writing math formulas

Time for answer. Young attractive college professor points out at the student who wants to answer the question

Thorough explanation. Young male college professor is busy with explaining the lecture he has given

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

Building bright minds. a young male teacher giving a lesson to his students on the lecture hall

Enthusiastic mathematician explaining subject to students gesticulating with hand in schoolroom

Education, elementary, teaching, math and people concept - group of school kids and teacher writing mathematic task on green chalkboard in classroom

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.

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

Enjoying learning. Happy smiling girl doing sums near the school board with the help of her teacher.

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

Counting in class. Smart school girl speaking and writing on a board in front oh the class.

Lesson in progress. Young female teacher is looking down at her textbook and checking her pupils presence