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    Junior high school boys watching teacher during lesson in classroom — Stock Photo
    Junior high school boys watching teacher during lesson in classroom
    High school students clapping in debate class — Stock Photo
    High school students clapping in debate class
    Boy students conducting scientific experiment, examining liquid in test tube in laboratory classroom — Stock Photo
    Boy students conducting scientific experiment, examining liquid in test tube in laboratory classroom
    Portrait confident young male basketball player holding basketball on court — Stock Photo
    Portrait confident young male basketball player holding basketball on court
    Junior high boy students playing basketball in schoolyard — Stock Photo
    Junior high boy students playing basketball in schoolyard
    Side view of a Caucasian male field hockey goalkeeper, standing in the goal holding a hokey stick, and turning to look to camera, during a field hockey game on a sunny day, seen through the goal net — Stock Photo
    Side view of a Caucasian male field hockey goalkeeper, standing in the goal holding a hokey stick, and turning to look to camera, during a field hockey game on a sunny day, seen through the goal net
    High school girl student taking exam at desk in classroom — Stock Photo
    High school girl student taking exam at desk in classroom
    Junior high schoolgirl making bar graph — Stock Photo
    Junior high schoolgirl making bar graph
    Female geography teacher with globe teaching lesson in classroom — Stock Photo
    Female geography teacher with globe teaching lesson in classroom
    Junior high students — Stock Photo
    Junior high students
    High angle close-up of artist drawing hand in art class. — Stock Photo
    High angle close-up of artist drawing hand in art class.
    Side view of a Caucasian teenage female high school student and a Caucasian male teacher sitting on chairs on the stage in an empty school theatre preparing before a performance, holding scripts and practicing together — Stock Photo
    Side view of a Caucasian teenage female high school student and a Caucasian male teacher sitting on chairs on the stage in an empty school theatre preparing before a performance, holding scripts and practicing together
    High school students listening to lecture in classroom — Stock Photo
    High school students listening to lecture in classroom
    A mother and daughter laugh while looking at a tablet together — Stock Photo
    A mother and daughter laugh while looking at a tablet together
    Family of four walking down a cactus trail - their back to camera. — Stock Photo
    Family of four walking down a cactus trail - their back to camera.
    Junior high school students studying at desk in classroom — Stock Photo
    Junior high school students studying at desk in classroom
    High school girl students talking, doing homework in classroom — Stock Photo
    High school girl students talking, doing homework in classroom
    High school girl friends using smart phone — Stock Photo
    High school girl friends using smart phone
    Girl student using microscope, conducting scientific experiment in laboratory classroom — Stock Photo
    Girl student using microscope, conducting scientific experiment in laboratory classroom
    A little boy plays with an alphabet puzzle. — Stock Photo
    A little boy plays with an alphabet puzzle.
    Junior high school students studying at desk in classroom — Stock Photo
    Junior high school students studying at desk in classroom
    Young students studying in classroom — Stock Photo
    Young students studying in classroom
    Rear view of a Caucasian male high school teacher sitting on a chair on the stage in an empty school theatre and pointing during rehearsals for a performance, preparing a multi-ethnic group of teenage high school students for a performance — Stock Photo
    Rear view of a Caucasian male high school teacher sitting on a chair on the stage in an empty school theatre and pointing during rehearsals for a performance, preparing a multi-ethnic group of teenage high school students for a performance
    Male teacher leading lesson at projection screen in classroom with students raising hands — Stock Photo
    Male teacher leading lesson at projection screen in classroom with students raising hands
    High school teacher talking, leading lesson in classroom — Stock Photo
    High school teacher talking, leading lesson in classroom
    Side view of a Caucasian female field hockey player training before a game, working out on a hockey pitch, shading her eyes from the sun, with her teammates in the background, on a sunny day — Stock Photo
    Side view of a Caucasian female field hockey player training before a game, working out on a hockey pitch, shading her eyes from the sun, with her teammates in the background, on a sunny day
    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
    Young male basketball players playing basketball on court in gym — Stock Photo
    Young male basketball players playing basketball on court in gym
    Focused young male college student studying in cafe — Stock Photo
    Focused young male college student studying in cafe
    Female teenage student holding books on stairs — Stock Photo
    Female teenage student holding books on stairs
    Side view low section of female field hockey player, during a field hockey game, shooting a ball, holding a hockey stick, with her teammates and opponents in the background, on a sunny day — Stock Photo
    Side view low section of female field hockey player, during a field hockey game, shooting a ball, holding a hockey stick, with her teammates and opponents in the background, on a sunny day
    Students writing their GCSE exam — Stock Photo
    Students writing their GCSE exam
    Front view of a teenage Caucasian boy sitting a desk looking ahead and concentrating in a school classroom, with a row of teenage female classmates sitting at desks behind him — Stock Photo
    Front view of a teenage Caucasian boy sitting a desk looking ahead and concentrating in a school classroom, with a row of teenage female classmates sitting at desks behind him
    Liquid in bottles, test tubes and beakers in science laboratory classroom — Stock Photo
    Liquid in bottles, test tubes and beakers in science laboratory classroom
    Side view of a teenage African American girl in a high school classroom sitting on a desk, concentrating and writing, with teenage male and female classmates sitting at desks working in the background — Stock Photo
    Side view of a teenage African American girl in a high school classroom sitting on a desk, concentrating and writing, with teenage male and female classmates sitting at desks working in the background
    Rear view of multi-ethnic group of high school teenagers in a school classroom sitting at desks, all raising their hands to answer a question, their male teacher standing in the background — Stock Photo
    Rear view of multi-ethnic group of high school teenagers in a school classroom sitting at desks, all raising their hands to answer a question, their male teacher standing in the background
    Sleeping teenage boy — Stock Photo
    Sleeping teenage boy
    Portrait of confident junior high students — Stock Photo
    Portrait of confident junior high students
    Happy high school students with digital tablet studying — Stock Photo
    Happy high school students with digital tablet studying
    Young woman writing in book — Stock Photo
    Young woman writing in book
    Happy junior high schoolgirl — Stock Photo
    Happy junior high schoolgirl
    Male teacher leading lesson in classroom — Stock Photo
    Male teacher leading lesson in classroom
    Front view of a group of female Caucasian field hockey players preparing before a game, standing in a changing room, one is putting her hand on a shoulder of her teammate — Stock Photo
    Front view of a group of female Caucasian field hockey players preparing before a game, standing in a changing room, one is putting her hand on a shoulder of her teammate
    Junior high students using computer in computer lab — Stock Photo
    Junior high students using computer in computer lab
    Curious students examining DNA model in classroom — Stock Photo
    Curious students examining DNA model in classroom
    Male instructor leading lesson at projection screen in classroom — Stock Photo
    Male instructor leading lesson at projection screen in classroom
    High school boy student taking exam at desk in classroom — Stock Photo
    High school boy student taking exam at desk in classroom
    Young students studying in classroom — Stock Photo
    Young students studying in classroom
    Teenage girls designing denim jacket in fashion design class — Stock Photo
    Teenage girls designing denim jacket in fashion design class
    Aerial view of Wuming Buddhist College at night of Seda County, Sichuan province, China — Stock Photo
    Aerial view of Wuming Buddhist College at night of Seda County, Sichuan province, China
    Students putting books in drawer — Stock Photo
    Students putting books in drawer
    Focused young male basketball player shooting the ball in gymnasium — Stock Photo
    Focused young male basketball player shooting the ball in gymnasium
    Portrait confident teenage girl wearing hijab — Stock Photo
    Portrait confident teenage girl wearing hijab
    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 a multi-ethnic group of teenage pupils sitting at desks in class studying at school with a Caucasian male teacher standing and talking to one Caucasian girl at her desk — Stock Photo
    Side view of a multi-ethnic group of teenage pupils sitting at desks in class studying at school with a Caucasian male teacher standing and talking to one Caucasian girl at her desk
    Side view low section of group of male field hockey players from two teams shaking hands, holding hockey sticks on a hockey pitch on a sunny day — Stock Photo
    Side view low section of group of male field hockey players from two teams shaking hands, holding hockey sticks on a hockey pitch on a sunny day
    Portrait of confident elementary age boy doing homework in classroom — Stock Photo
    Portrait of confident elementary age boy doing homework in classroom
    Young male basketball player jumping to slam dunk basketball in game on court in gymnasium — Stock Photo
    Young male basketball player jumping to slam dunk basketball in game on court in gymnasium
    Focused high school boy student taking exam at desk in classroom — Stock Photo
    Focused high school boy student taking exam at desk in classroom
    Two handsome teenage boys sitting on the wall repairing a skateboard — Stock Photo
    Two handsome teenage boys sitting on the wall repairing a skateboard