Medium long of male teacher in medical gown and protective goggles standing in foreground of blackboard, showing experiment on chemistry lesson
Medium long of male chemistry teacher in medical gown and protective goggles standing in front of high school students in morning, holding beaker with liquid
Over-shoulder of male chemistry teacher in medical gown and protective goggles standing in front of high school students in morning, showing experiment
Over-shoulder of male chemistry teacher in medical gown and protective goggles standing in front of high school students in morning, making experiment with chemicals
Side view of male chemistry teacher in medical gown and protective goggles standing in front of high school students in morning, making experiment with chemicals
Low angle of Caucasian male teacher in medical gown and protective goggles standing in foreground of blackboard, shaking beaker on chemistry lesson
Over-shoulder of male chemistry teacher in medical gown and protective goggles standing in front of high school students in morning, mixing transparent and violet chemical liquids
Waist-up of male Biracial and female Black students in white gowns sitting at school desk in morning, writing on chemistry lesson
Chemistry teacher demonstrates litmus test to young student in lab
Tilting down of male Biracial and female Black students in white gowns sitting at school desk in morning, writing test on chemistry lesson
Medium of male Black and female Caucasian students in white gowns sitting at school desk in morning, getting test sheets on chemistry lesson
Clever multiracial senior school students in protective masks raising their hands to answer teacher's question in chemistry lesson. Mixed race woman teacher asking african american girl during classes