Rear view of students sitting at desks in classroom, raising hands when male bearded teacher asking question
Tracking in of male Caucasian teacher holding image of frog anatomy, teaching high school students, standing by blackboard in classroom at daytime
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
Low angle midsection of two students in white gowns and gloves sitting at school desk, watching chemical reaction in beaker at daytime, talking
Waist-up of African American guy and Caucasian girl sitting at school desk in morning, looking at liquid for chemistry experiment
Medium long low angle of Black guy making presentation to classmates, showing educational video about bees
Rear tracking right of diverse high school students sitting at desks in classroom, talking to male teacher at daytime
Tilting down of bearded male teacher holding tablet, standing in classroom, watching two high school classmates sitting at desk, using microscope and dissecting frog
Medium long of bearded male teacher walking in classroom, watching diverse high school students sitting at desks, using microscopes and dissecting frogs
low angle of Caucasian male teacher prompting African American guy who sitting at school desk in classroom at daytime
Side-view of female Caucasian college student in mask sitting at school desk on lecture, listening in afternoon
Side view of intelligent African American guy in mask and eyeglasses sitting at school desk on lecture, writing summary in afternoon
Side view of intelligent African American guy sitting at school desk on lecture, writing summary in afternoon
Over-shoulder of short-haired Caucasian girl sitting at school desk on lecture, writing summary in notebook at daytime
Medium portrait of two female and male students sitting at desk in classroom, their male bearded chemistry teacher standing behind, all in white gowns at daytime
Waist-up portrait of blue-eyed Caucasian male professor in white gown crossing arms on chest, posing in foreground of classroom with students at daytime, looking on camera
Tilting up of two diverse students sitting at school desk, experimenting with purple chemical liquids at daytime
Top-down view of unrecognizable college student sitting at desk in classroom, holding test sheet with A grade at daytime
Midsection side view of person in white gown giving test sheets to two students who sitting at desk in classroom on chemistry lesson in afternoon, talking and smiling
Medium of male Black and female Caucasian students in white gowns sitting at school desk in morning, getting test sheets on chemistry lesson
Medium long of bearded male professor giving test sheets to students who sitting at desk in classroom on chemistry lesson in afternoon
Tracking in of diverse college students sitting at desks in classroom, writing summary on chemistry lecture, professor holding beamer with purple liquid
Waist-up of male Biracial and female Black students in white gowns sitting at school desk in morning, writing on chemistry lesson
Wide shot of male Caucasian professor in white gown, gloves and goggles showing chemical experiment, lighting match, talking to audience in classroom, female assistant sitting at desk
Midsection of cropped professor making black fire snake chemical experiment on desk in classroom at daytime
Medium long of male Caucasian professor in white gown, gloves and goggles showing chemical experiment, lighting match, talking to invisible audience in classroom, female assistant sitting at desk
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
Medium of male Caucasian professor in white gown, gloves and goggles holding beamer with purple liquid, talking to invisible audience in classroom, female assistant sitting at desk
Midsection of cropped male professor in white gown and gloves holding beamer with purple liquid, talking to invisible audience in classroom, smiling
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
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
Waist-up of female African American Student sitting at school desk, looking at cup with chemicals, talking to cropped teacher at daytime
Medium long of male teacher in medical gown and protective goggles standing in foreground of blackboard, showing experiment on chemistry lesson
Low angle of Caucasian male teacher in medical gown and protective goggles standing in foreground of blackboard, shaking beaker on chemistry lesson
Long shot of male teacher in medical gown and protective goggles standing in front of high school students who sitting at desks on chemistry lesson
Medium close-up portrait of short-haired Caucasian girl dissecting frog and looking on camera, sitting next to African American guy using microscope at desk in classroom
Low angle of African American guy using microscope, sitting at desk on biology lesson in afternoon
Tracking out view of classroom with chemistry formulas on blackboard, TV screen, desks and posters in morning
Low angle of Caucasian girl sitting at school desk in morning, dissecting frog, African American guy using microscope
Chest-up of long-haired Caucasian girl using microscope, writing in notebook, sitting at desk next to Biracial guy who dissecting frog on biology lesson in afternoon
High angle of Caucasian girl looking into microscope, writing in notebook, sitting at desk next to Biracial guy who dissecting frog on biology lesson in afternoon
Top-down view of cropped girl sitting at school desk in daylight, dissecting frog
Slow motion of Caucasian girl sitting at school desk in morning, dissecting frog, cropped African American guy looking at anatomy map
Medium long of African American guy and Caucasian girl sitting at school desk in morning, dissecting frog, male teacher checking on them
Low angle of African American guy and Caucasian girl sitting at school desk in morning, dissecting frog, looking at anatomy map
Low angle of multiethnic high school students clapping hands, standing around male teacher who sitting at desk in classroom, checking exam results on laptop computer in afternoon
Medium long of diverse high school students clapping hands, standing around male teacher who sitting at desk in classroom, using laptop computer in afternoon
Top-down view of curly-haired male high school student sitting at desk in classroom, getting sheet with frog anatomy map from cropped teacher
Medium long side view of male Caucasian teacher walking between desks, giving sheets with frog anatomy map to high school students in classroom at daytime
Medium long of male Caucasian teacher walking between desks, giving exam sheets to high school students in classroom at daytime
Wide shot of male Caucasian teacher teaching high school students who sitting at desks, standing in front of them by blackboard in classroom at daytime
Tilting down of curly-haired teenage guy sitting at desk in class at daytime, using tablet computer, hiding it, smiling
Medium long side-view of curly-haired teenage guy sitting at desk in class at daytime, receiving text message, hiding smartphone, smiling and replying
Low angle of female Caucasian high school student sitting at desk in class in morning, using smartphone
Medium long over-shoulder of unrecognizable teacher looking at female Caucasian high school student sitting at desk in class in morning, using smartphone
Medium close-up of short-haired Caucasian girl in eyeglasses sitting at desk in classroom, reading in morning
Medium portrait of African American female student sitting at school desk in morning, using tablet computer, then looking up and smiling on camera
Low angle of short-haired Caucasian girl in eyeglasses sitting at desk in classroom, reading in morning, smiling
Tracking of bearded male professor giving test sheets to multiethnic students who sitting at desk in classroom on chemistry lesson in afternoon
Low angle selective focus of female Caucasian high school student sitting at desk in class in morning, using smartphone