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    Portrait of teenage Caucasian male high school student wearing a cap and gown on his graduation day, looking to camera and smiling, with other students wearing caps and gowns in the background — Stock Photo
    Portrait of teenage Caucasian male high school student wearing a cap and gown on his graduation day, looking to camera and smiling, with other students wearing caps and gowns in the background
    Female geography teacher with globe teaching lesson in classroom — Stock Photo
    Female geography teacher with globe teaching lesson in classroom
    Front view of a multi-ethnic group of teenage school pupils and their Caucasian male teacher standing in a classroom looking at laptop computers together, the pupils listening while the teacher talks — Stock Photo
    Front view of a multi-ethnic group of teenage school pupils and their Caucasian male teacher standing in a classroom looking at laptop computers together, the pupils listening while the teacher talks
    Male teacher and girl students conducting scientific experiment at microscope in laboratory classroom — Stock Photo
    Male teacher and girl students conducting scientific experiment at microscope in laboratory classroom
    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
    Surprised students conducting scientific experiment, watching chemical reaction in classroom laboratory — Stock Photo
    Surprised students conducting scientific experiment, watching chemical reaction in classroom laboratory
    Happy high school students using smart phone — Stock Photo
    Happy high school students using smart phone
    Cropped view of hands of man writing in book with female classmate in background — Stock Photo
    Cropped view of hands of man writing in book with female classmate in background
    Over the shoulder view of a Caucasian female conductor and a multi-ethnic group of teenage male and female choristers standing opposite each other, the choir holding sheet music and singing — Stock Photo
    Over the shoulder view of a Caucasian female conductor and a multi-ethnic group of teenage male and female choristers standing opposite each other, the choir holding sheet music and singing
    Junior high students talking in library — Stock Photo
    Junior high students talking in library
    Front view close up of a Caucasian teenage girl sitting at a desk in a school classroom looking out of the window, with classmates sitting at desks in the background — Stock Photo
    Front view close up of a Caucasian teenage girl sitting at a desk in a school classroom looking out of the window, with classmates sitting at desks in the background
    Front view of a Caucasian and a mixed race teenage girls holding scripts sitting on the stage of a school theatre during rehearsals for a performance — Stock Photo
    Front view of a Caucasian and a mixed race teenage girls holding scripts sitting on the stage of a school theatre during rehearsals for a performance
    Front view of a Caucasian teenage boy and a mixed race teenage girl sitting on a wall looking at a tablet computer together and smiling, in a school playing field with two teenage couple walking in the background — Stock Photo
    Front view of a Caucasian teenage boy and a mixed race teenage girl sitting on a wall looking at a tablet computer together and smiling, in a school playing field with two teenage couple walking in the background
    Two handsome teenage boys with skateboard standing on the bridge — Stock Photo
    Two handsome teenage boys with skateboard standing on the bridge
    Junior high students raising hands — Stock Photo
    Junior high students raising hands
    High angle view of rural female teacher and chinese pupils raising hands and smiling at camera in classroom — Stock Photo
    High angle view of rural female teacher and chinese pupils raising hands and smiling at camera in classroom
    Portrait enthusiastic junior high girl students waving on steps — Stock Photo
    Portrait enthusiastic junior high girl students waving on steps
    Male teacher leading lesson at touch screen in classroom — Stock Photo
    Male teacher leading lesson at touch screen in classroom
    Front view of a teenage mixed-race boy in a school classroom sitting at desk, raising his hand to answer a question, with teenage male and female classmates sitting at desks working in the background — Stock Photo
    Front view of a teenage mixed-race boy in a school classroom sitting at desk, raising his hand to answer a question, with teenage male and female classmates sitting at desks working in the background
    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
    Male high school student sitting on lockers and talking with female classmates — Stock Photo
    Male high school student sitting on lockers and talking with female classmates
    Confident junior high school girl student doing homework in classroom — Stock Photo
    Confident junior high school girl student doing homework in classroom
    Male teacher leading lesson at touch screen television in classroom — Stock Photo
    Male teacher leading lesson at touch screen television in classroom
    Rear view of a multi-ethnic group of teenagers in a school high school classroom sitting at desks and listening to their male Caucasian teacher standing at the front of a class — Stock Photo
    Rear view of a multi-ethnic group of teenagers in a school high school classroom sitting at desks and listening to their male Caucasian teacher standing at the front of a class
    Portrait of confident schoolgirl — Stock Photo
    Portrait of confident schoolgirl
    Female students analyzing results of experiments — Stock Photo
    Female students analyzing results of experiments
    Front view of a male Caucasian teacher standing, using a laptop 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, using a laptop and talking to a multi-ethnic group of teenagers in a school high school classroom sitting at desks and listening
    College students studying and using digital tablet in park — Stock Photo
    College students studying and using digital tablet in park
    Female friends talking in locker room — Stock Photo
    Female friends talking in locker room
    Curious students conducting scientific experiment, examining liquid in beaker in laboratory classroom — Stock Photo
    Curious students conducting scientific experiment, examining liquid in beaker in laboratory classroom
    High angle view of rural female teacher and chinese pupils smiling at camera in the classroom — Stock Photo
    High angle view of rural female teacher and chinese pupils smiling at camera in the classroom
    Mature teacher explaining student — Stock Photo
    Mature teacher explaining student
    Portrait of confident junior high school student doing homework in classroom — Stock Photo
    Portrait of confident junior high school student doing homework in classroom
    Focused junior high school girl student doing homework at desk in classroom — Stock Photo
    Focused junior high school girl student doing homework at desk in classroom
    Dedicated college students studying in classroom — Stock Photo
    Dedicated college students studying in classroom
    Front view of a Caucasian male high school teacher, standing and talking with a teenage Caucasian girl in a school classroom sitting at desk, with teenage classmates sitting at desks working in the background — Stock Photo
    Front view of a Caucasian male high school teacher, standing and talking with a teenage Caucasian girl in a school classroom sitting at desk, with teenage classmates sitting at desks working in the background
    Male teacher and girl students conducting scientific experiment at microscope and laptop in laboratory classroom — Stock Photo
    Male teacher and girl students conducting scientific experiment at microscope and laptop in laboratory classroom
    Junior high school girl student doing homework at desk in classroom — Stock Photo
    Junior high school girl student doing homework at desk in classroom
    Smiling female chemistry teacher and students conducting scientific experiment in laboratory classroom — Stock Photo
    Smiling female chemistry teacher and students conducting scientific experiment in laboratory classroom
    Junior high school students talking in classroom — Stock Photo
    Junior high school students talking in classroom
    Smiling teenage girl studying with friends — Stock Photo
    Smiling teenage girl studying with friends
    Schoolgirl raising hand — Stock Photo
    Schoolgirl raising hand
    Portrait of confident elementary age boy doing homework in classroom — Stock Photo
    Portrait of confident elementary age boy doing homework in classroom
    Front view of a multi-ethnic group of teenage pupils concentrating sitting at desks in class studying at school in a high school — Stock Photo
    Front view of a multi-ethnic group of teenage pupils concentrating sitting at desks in class studying at school in a high school
    Teacher supervising high school students taking exam at desks — Stock Photo
    Teacher supervising high school students taking exam at desks