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    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 teenage Caucasian boy and a teenage African American girl in a high school classroom sitting a desk, using a tablet computer, with teenage classmates sitting at desks working in the background — Stock Photo
    Front view of a teenage Caucasian boy and a teenage African American girl in a high school classroom sitting a desk, using a tablet computer, with teenage classmates sitting at desks working in the background
    Happy junior high schoolboy — Stock Photo
    Happy junior high schoolboy
    Note pad folder on table — Stock Photo
    Note pad folder on table
    Front view of a Caucasian female and male high school pupils hanging out and embracing each other, standing in their school grounds — Stock Photo
    Front view of a Caucasian female and male high school pupils hanging out and embracing each other, standing in their school grounds
    Portrait of smiling schoolgirls — Stock Photo
    Portrait of smiling schoolgirls
    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 of happy school students — Stock Photo
    Portrait of happy school students
    Two handsome teenage boys with skateboard walking on the bridge — Stock Photo
    Two handsome teenage boys with skateboard walking on the bridge
    College students taking test at desks in classroom — Stock Photo
    College students taking test at desks in classroom
    Smiling junior high school students at desk in classroom — Stock Photo
    Smiling junior high school students at desk in classroom
    Mature teacher explaining students — Stock Photo
    Mature teacher explaining students
    Junior high school students doing homework at desks in classroom — Stock Photo
    Junior high school students doing homework at desks in classroom
    Teacher helping junior high students using computer in computer lab — Stock Photo
    Teacher helping junior high students using computer in computer lab
    Two handsome teenage boys with skateboard standing on the bridge — Stock Photo
    Two handsome teenage boys with skateboard standing on the bridge
    Girl drawing bar graph — Stock Photo
    Girl drawing bar graph
    Junior high students hanging out — Stock Photo
    Junior high students hanging out
    Junior high students walking in library — Stock Photo
    Junior high students walking in library
    Front view of a multi-ethnic group of high school teenage male and female high school pupils in a classroom, sitting at desks working together and talking — Stock Photo
    Front view of a multi-ethnic group of high school teenage male and female high school pupils in a classroom, sitting at desks working together and talking
    Students and teacher painting in classroom — Stock Photo
    Students and teacher painting in classroom
    Rear view of a multi-ethnic group of male and female teenage students talking as they walk through their school grounds — Stock Photo
    Rear view of a multi-ethnic group of male and female teenage students talking as they walk through their school grounds
    Portrait confident junior high female students on steps — Stock Photo
    Portrait confident junior high female students on steps
    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
    Teacher standing with student — Stock Photo
    Teacher standing with student
    University students studying together — Stock Photo
    University students studying together
    Students conducting scientific experiment, pouring liquid in beaker in laboratory classroom — Stock Photo
    Students conducting scientific experiment, pouring liquid in beaker in laboratory classroom
    College students studying together in classroom — Stock Photo
    College students studying together in classroom
    Female students performing science experiment — Stock Photo
    Female students performing science experiment
    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
    Portrait of a Caucasian teenage girl with long, dark hair and brown eyes standing in a school classroom smiling to camera, with classmates talking in the background — Stock Photo
    Portrait of a Caucasian teenage girl with long, dark hair and brown eyes standing in a school classroom smiling to camera, with classmates talking in the background
    Rear view of a Caucasian teenage boy standing in the auditorium directing a teenage girl on stage in an empty school theatre during rehearsals for a performance — Stock Photo
    Rear view of a Caucasian teenage boy standing in the auditorium directing a teenage girl on stage in an empty school theatre during rehearsals for a performance
    Student playing with model in classroom — Stock Photo
    Student playing with model in classroom
    Girl students conducting chemistry experiment in classroom laboratory — Stock Photo
    Girl students conducting chemistry experiment in classroom laboratory
    High school students hanging out and using smart phones — Stock Photo
    High school students hanging out and using smart phones
    Side view of a multi-ethnic group of male and female teenagers hanging out smiling laughing and talking in their school grounds in the sunlight — Stock Photo
    Side view of a multi-ethnic group of male and female teenagers hanging out smiling laughing and talking in their school grounds in the sunlight
    Front view close up of a teenage Caucasian girl in a school classroom sitting at desk, concentrating and reading, with teenage male and female classmates sitting at desks working in the background — Stock Photo
    Front view close up of a teenage Caucasian girl in a school classroom sitting at desk, concentrating and reading, with teenage male and female classmates sitting at desks working in the background
    Serious schoolboy sitting at desk — Stock Photo
    Serious schoolboy sitting at desk
    Junior high school boy student doing homework in classroom — Stock Photo
    Junior high school boy student doing homework in classroom
    Side view mid section of a mixed race teenage schoolgirl sitting at a desk in class using a tablet computer, with classmates working in the background — Stock Photo
    Side view mid section of a mixed race teenage schoolgirl sitting at a desk in class using a tablet computer, with classmates working in the background
    Junior high school students enjoying lesson at desks in classroom — Stock Photo
    Junior high school students enjoying lesson at desks in classroom
    Young college students studying together in classroom — Stock Photo
    Young college students studying together in classroom
    Teacher helping junior high students using computer in computer lab — Stock Photo
    Teacher helping junior high students using computer in computer lab
    Junior high students hanging out, talking — Stock Photo
    Junior high students hanging out, talking
    Female teacher and students watching scientific experiment chemical reaction in laboratory classroom — Stock Photo
    Female teacher and students watching scientific experiment chemical reaction in laboratory classroom
    Surprised students conducting scientific experiment, watching chemical reaction in classroom laboratory — Stock Photo
    Surprised students conducting scientific experiment, watching chemical reaction in classroom laboratory
    Female teacher helping girl students researching at laptop at library table — Stock Photo
    Female teacher helping girl students researching at laptop at library table
    Junior high school student raising hand, asking a question during lesson in classroom — Stock Photo
    Junior high school student raising hand, asking a question during lesson in classroom
    Students typing at computers in adult education classroom — Stock Photo
    Students typing at computers in adult education classroom
    Smiling college students descending staircase — Stock Photo
    Smiling college students descending staircase
    Male teacher leading lesson in classroom — Stock Photo
    Male teacher leading lesson in classroom
    High school students talking at table in debate class — Stock Photo
    High school students talking at table in debate class
    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
    Junior high schoolgirl making bar graph — Stock Photo
    Junior high schoolgirl making bar graph
    Junior high school students at desks in classroom — Stock Photo
    Junior high school students at desks in classroom
    University students studying in library — Stock Photo
    University students studying in library
    College students conducting scientific experiment in science laboratory classroom — Stock Photo
    College students conducting scientific experiment in science laboratory classroom
    Front 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
    Front 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
    Man sitting on lockers with female friend in university — Stock Photo
    Man sitting on lockers with female friend in university
    Two teenage boys standing and looking at the camera on the urban basket court — Stock Photo
    Two teenage boys standing and looking at the camera on the urban basket court
    College students studying in classroom — Stock Photo
    College students studying in classroom