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    Smiling girl conducting scientific experiment in laboratory classroom — Stock Photo
    Smiling girl conducting scientific experiment in laboratory classroom
    Side view of a teenage Caucasian boy holding sitting in front of a window in a classroom holding a French horn with a multi-ethnic group of teenage male and female musicians sitting behind him — Stock Photo
    Side view of a teenage Caucasian boy holding sitting in front of a window in a classroom holding a French horn with a multi-ethnic group of teenage male and female musicians sitting behind him
    Side view of a multi-ethnic group of teenage male and female choristers holding sheet music and singing standing on the stage of a school theatre during rehearsals for a performance — Stock Photo
    Side view of a multi-ethnic group of teenage male and female choristers holding sheet music and singing standing on the stage of a school theatre during rehearsals for a performance
    Young college students writing on book at desk while sitting classroom — Stock Photo
    Young college students writing on book at desk while sitting classroom
    High school girls descending stairs — Stock Photo
    High school girls descending stairs
    Female college students practicing chemistry experiment at desk in lab — Stock Photo
    Female college students practicing chemistry experiment at desk in lab
    Front view of a multi-ethnic group of high school teenage male and female school pupils in a classroom, sitting at a table working together, looking at a laptop computer — Stock Photo
    Front view of a multi-ethnic group of high school teenage male and female school pupils in a classroom, sitting at a table working together, looking at a laptop computer
    Side view of college students studying at desk in classroom — Stock Photo
    Side view of college students studying at desk in classroom
    Students programming at computer in classroom — Stock Photo
    Students programming at computer in classroom
    Teenage girls designing denim jacket in fashion design class — Stock Photo
    Teenage girls designing denim jacket in fashion design class
    Male science teacher and students conducting scientific experiment in laboratory classroom — Stock Photo
    Male science teacher and students conducting scientific experiment in laboratory classroom
    Side view of a teenage Caucasian girl in a school classroom sitting at desk, concentrating and writing, with teenage male and female classmates sitting at desks working in the background — Stock Photo
    Side view of a teenage Caucasian girl in a school classroom sitting at desk, concentrating and writing, with teenage male and female classmates sitting at desks working in the background
    Surprised students conducting scientific experiment, watching chemical reaction in classroom laboratory — Stock Photo
    Surprised students conducting scientific experiment, watching chemical reaction in classroom laboratory
    High school girls talking on stairs — Stock Photo
    High school girls talking on stairs
    Schoolboy standing in the classroom at school — Stock Photo
    Schoolboy standing in the classroom at school
    Portrait confident junior high female students on steps — Stock Photo
    Portrait confident junior high female students on steps
    Portrait smiling, confident girl students researching at computer in library — Stock Photo
    Portrait smiling, confident girl students researching at computer in library
    Front view of a teenage Caucasian boy sitting a desk looking ahead and raising his hand in a school classroom, with a row of teenage female classmates sitting at desks behind him also raising their hands — Stock Photo
    Front view of a teenage Caucasian boy sitting a desk looking ahead and raising his hand in a school classroom, with a row of teenage female classmates sitting at desks behind him also raising their hands
    Junior high students using computers in computer lab — Stock Photo
    Junior high students using computers in computer lab
    Front view of a multi-ethnic group of male and female teenagers with schoolbags hanging out and talking in their school grounds in sunlight — Stock Photo
    Front view of a multi-ethnic group of male and female teenagers with schoolbags hanging out and talking in their school grounds in sunlight
    Happy, laughing junior high school students in classroom — Stock Photo
    Happy, laughing junior high school students in classroom
    College students writing on book while sitting at desks during exam in classroom — Stock Photo
    College students writing on book while sitting at desks during exam in classroom
    Schoolkids looking at each other in school campus on a sunny day — Stock Photo
    Schoolkids looking at each other in school campus on a sunny day
    Front view close up of a Caucasian musician teenage boy sitting and playing an acoustic guitar in a high school — Stock Photo
    Front view close up of a Caucasian musician teenage boy sitting and playing an acoustic guitar in a high school
    College students discussing while studying at desk in classroom — Stock Photo
    College students discussing while studying at desk in classroom
    Curious junior high school students looking at globe in classroom — Stock Photo
    Curious junior high school students looking at globe in classroom
    Female teacher and girl students using microscope and laptop, conducting scientific experiment in laboratory classroom — Stock Photo
    Female teacher and girl students using microscope and laptop, conducting scientific experiment in laboratory classroom
    Female teacher in hijab leading lesson at projection screen in classroom — Stock Photo
    Female teacher in hijab leading lesson at projection screen in classroom
    Girl students researching, using computer in library — Stock Photo
    Girl students researching, using computer in library
    Side view of a Caucasian sad teenage girl sitting on the ground alone in a schoolyard in a high school — Stock Photo
    Side view of a Caucasian sad teenage girl sitting on the ground alone in a schoolyard in a high school
    Portrait close up of a Caucasian teenage boy with dark hair and grey eyes sitting at a desk in a school classroom wearing headphones around his neck, smiling to camera — Stock Photo
    Portrait close up of a Caucasian teenage boy with dark hair and grey eyes sitting at a desk in a school classroom wearing headphones around his neck, smiling to camera
    Rear view of a Caucasian woman conductor directing a multi-ethnic group of teenage male and female choristers holding sheet music and singing standing on the stage of a school theatre during rehearsals for a performance — Stock Photo
    Rear view of a Caucasian woman conductor directing a multi-ethnic group of teenage male and female choristers holding sheet music and singing standing on the stage of a school theatre during rehearsals for a performance
    Portrait smiling, confident girl student researching at computer in library — Stock Photo
    Portrait smiling, confident girl student researching at computer in library
    Teenage girl using digital tablet while sitting in library — Stock Photo
    Teenage girl using digital tablet while sitting in library
    Front view of a male Caucasian teacher standing, holding a tablet computer and talking to a multi-ethnic group of teenagers in a school high school classroom sitting at desks and listening — Stock Photo
    Front view of a male Caucasian teacher standing, holding a tablet computer and talking to a multi-ethnic group of teenagers in a school high school classroom sitting at desks and listening
    Front view of a Caucasian female and male high school student couple hanging out, standing in their school grounds, the boy piggybacking the girl — Stock Photo
    Front view of a Caucasian female and male high school student couple hanging out, standing in their school grounds, the boy piggybacking the girl
    Tween boys playing basketball on schoolyard — Stock Photo
    Tween boys playing basketball on schoolyard
    Male teacher and students watching chemical reaction, conducting scientific experiment in laboratory classroom — Stock Photo
    Male teacher and students watching chemical reaction, conducting scientific experiment in laboratory classroom
    Portrait of college students with arms crossed standing in lab — Stock Photo
    Portrait of college students with arms crossed standing in lab
    Young students practicing chemistry experiment in lab — Stock Photo
    Young students practicing chemistry experiment in lab
    Teenage girl looking at computer while sitting at desk in lab — Stock Photo
    Teenage girl looking at computer while sitting at desk in lab
    Portrait close up of a Caucasian teenage boy with short blonde hair and blue eyes standing in a school classroom smiling to camera, with classmates talking in the background — Stock Photo
    Portrait close up of a Caucasian teenage boy with short blonde hair and blue eyes standing in a school classroom smiling to camera, with classmates talking in the background
    Students practicing experiment in lab — Stock Photo
    Students practicing experiment in lab
    Laughing girl student at microscope in laboratory classroom — Stock Photo
    Laughing girl student at microscope in laboratory classroom
    Students going out of classroom after lesson — Stock Photo
    Students going out of classroom after lesson
    Pensive, curious girl student examining molecular structure — Stock Photo
    Pensive, curious girl student examining molecular structure
    Female students using computer while practicing experiment in lab — Stock Photo
    Female students using computer while practicing experiment in lab
    Female teenage students studying at desk in classroom — Stock Photo
    Female teenage students studying at desk in classroom
    Side view of a teenage Caucasian boy in a school classroom sitting at desk, concentrating, looking out of the window and leaning his head on his hand — Stock Photo
    Side view of a teenage Caucasian boy in a school classroom sitting at desk, concentrating, looking out of the window and leaning his head on his hand
    Side view of two teenage Caucasian girls talking in a school classroom, one turning around in her seat to talk to the other, sitting at a desk behind her, concentrating and writing — Stock Photo
    Side view of two teenage Caucasian girls talking in a school classroom, one turning around in her seat to talk to the other, sitting at a desk behind her, concentrating and writing
    Focused junior high school student doing homework in classroom — Stock Photo
    Focused junior high school student doing homework in classroom
    Surprised, curious students watching chemical reaction, conducting scientific experiment in laboratory classroom — Stock Photo
    Surprised, curious students watching chemical reaction, conducting scientific experiment in laboratory classroom
    Rear view of two Caucasian teenage couples with schoolbags holding hands and walking across a school playing field on a sunny day — Stock Photo
    Rear view of two Caucasian teenage couples with schoolbags holding hands and walking across a school playing field on a sunny day
    Schoolkids using digital tablet in classroom at school — Stock Photo
    Schoolkids using digital tablet in classroom at school
    Side view of a Caucasian teenage male high school student in an empty high school theatre preparing before a performance, standing on the stage, holding a script and practicing his part — Stock Photo
    Side view of a Caucasian teenage male high school student in an empty high school theatre preparing before a performance, standing on the stage, holding a script and practicing his part
    Female university student using digital tablet while studying at desk in classroom — Stock Photo
    Female university student using digital tablet while studying at desk in classroom
    Eager, smiling students raising hands in science laboratory classroom — Stock Photo
    Eager, smiling students raising hands in science laboratory classroom
    Side view a Caucasian male high school teacher, standing at the front of a class, talking to a multi-ethnic group of teenagers in a school classroom sitting at desks in rows, listening — Stock Photo
    Side view a Caucasian male high school teacher, standing at the front of a class, talking to a multi-ethnic group of teenagers in a school classroom sitting at desks in rows, listening
    Front view of a multi-ethnic group of teenage male and female choristers holding sheet music and singing standing on the stage of a school theatre during rehearsals for a performance, with the arm of the female conductor in the foreground — Stock Photo
    Front view of a multi-ethnic group of teenage male and female choristers holding sheet music and singing standing on the stage of a school theatre during rehearsals for a performance, with the arm of the female conductor in the foreground
    High angle view of a multi-ethnic group of teenage school pupils sitting and standing around a table in a classroom looking at laptop and tablet computers together and talking at break time — Stock Photo
    High angle view of a multi-ethnic group of teenage school pupils sitting and standing around a table in a classroom looking at laptop and tablet computers together and talking at break time