Medium long of male teacher in medical gown and protective goggles standing in foreground of blackboard, showing experiment on chemistry lesson
Video of happy caucasian boy standing in class during lessons
Video of happy caucasian boy standing in class during lessons
Video of happy african american boy standing in class during lessons
Young student at the blackboard in class 4k
Little Schoolgirl Using Smartphone During Break In Lessons Standing Outdoors In Schoolyard, Portrait
Asian schoolgirl standing with teacher in front of class
Hispanic schoolgirl standing with teacher in front of class
Hispanic schoolgirl standing with teacher in front of class
Young student at the blackboard in class 4k
Waist up of two Caucasian preteen schoolgirls whispering during lesson in class
Medium slowmo of diverse middle school pupils standing around desk of their African American teacher while examining molecular models during Chemistry lesson