African American male lecturer helping guy student to test during exam. Lecturer speaking wih students and answering questions. Testing
Lecturer speaking to audience
Close-up of an inspired professor lecturer explaining lesson on laptop to smart high school students
Engaged student discussing with a lecturer. Motivated young person actively participating in classroom activity asking professor a question.
NEW
Caucasian young male professor in speaking to students in auditorium and explaining material. University concept. Man teacher at high school
Diverse students engage in post-class discussion with lecturer
Lecturer gesticulates and speaking to audience at seminar
Waist up slowmo of multicultural group of students having lecture in auditorium. Biracial girl raising her hand to ask professor question
Professor standing in auditorium near display with presentation asking his students questions on topic
Waist up slowmo of Caucasian female university student asking professor question while writing lecture sitting at desk in auditorium with multiethnic fellows
Mid-aged African American professor walking among desks in classroom and speaking to diverse students while giving lecture in high school
Engaging professor interacts with diverse students during a lecture