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    High school teacher supervising students taking exam at desks — Stock Photo
    High school teacher supervising students taking exam at desks
    College students in lab coats discussing notes in science laboratory classroom — Stock Photo
    College students in lab coats discussing notes in science laboratory classroom
    Side view of a male Caucasian teacher standing and talking with a teenage Caucasian girl working on a computer and concentrating in a classroom, with teenage male and female classmates sitting at desks working in the background and foreground — Stock Photo
    Side view of a male Caucasian teacher standing and talking with a teenage Caucasian girl working on a computer and concentrating in a classroom, with teenage male and female classmates sitting at desks working in the background and foreground
    College student raising hand in computer lab classroom — Stock Photo
    College student raising hand in computer lab classroom
    Enthusiastic college students high-fiving in stairway — Stock Photo
    Enthusiastic college students high-fiving in stairway
    Junior high students walking around smiling female teacher — Stock Photo
    Junior high students walking around smiling female teacher
    Boys with basketball ball on schoolyard — Stock Photo
    Boys with basketball ball on schoolyard
    Smiling college students descending staircase — Stock Photo
    Smiling college students descending staircase
    High school students watching female teacher leading lesson at projection screen in classroom — Stock Photo
    High school students watching female teacher leading lesson at projection screen in classroom
    Students sitting on lecture with teacher in classroom — Stock Photo
    Students sitting on lecture with teacher in classroom
    Girl students conducting scientific experiment behind test tubes and bottles in laboratory classroom — Stock Photo
    Girl students conducting scientific experiment behind test tubes and bottles in laboratory classroom
    Junior high school boy placing notebook in backpack in classroom — Stock Photo
    Junior high school boy placing notebook in backpack in classroom
    Side view close up of two Caucasian teenage girls with long dark hair sitting in front of a window playing a flute and a ukulele — Stock Photo
    Side view close up of two Caucasian teenage girls with long dark hair sitting in front of a window playing a flute and a ukulele
    College students studying together — Stock Photo
    College students studying together
    Female friends talking in locker room — Stock Photo
    Female friends talking in locker room
    Side view close up of a Caucasian female conductor directing a 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 close up of a Caucasian female conductor directing a 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
    High school students with hands raised in classroom — Stock Photo
    High school students with hands raised in classroom
    Girl drawing bar graph — Stock Photo
    Girl drawing bar graph
    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
    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
    Surprised students conducting scientific experiment, watching chemical reaction in classroom laboratory — Stock Photo
    Surprised students conducting scientific experiment, watching chemical reaction in classroom laboratory
    College students talking and studying together — Stock Photo
    College students talking and studying together
    Male teacher leading lesson at touch screen in classroom — Stock Photo
    Male teacher leading lesson at touch screen in classroom
    Smiling male teacher leading lesson in classroom — Stock Photo
    Smiling male teacher leading lesson in classroom
    Note pad folder on table — Stock Photo
    Note pad folder on table
    College students studying in classroom — Stock Photo
    College students studying in classroom
    Students in chemistery science class — Stock Photo
    Students in chemistery science class
    College students talking outside sunny building — Stock Photo
    College students talking outside sunny building
    Surprised students conducting exploding foam scientific experiment in classroom laboratory — Stock Photo
    Surprised students conducting exploding foam scientific experiment in classroom laboratory
    High school students talking on stair landing — Stock Photo
    High school students talking on stair landing
    Side view of Caucasian teenage boy and girl holding scripts and performing on the stage of a school theatre during rehearsals for a performance — Stock Photo
    Side view of Caucasian teenage boy and girl holding scripts and performing on the stage of a school theatre during rehearsals for a performance
    Schoolgirls writing at desk — Stock Photo
    Schoolgirls writing at desk
    Portrait of two cheerful female students sitting on steps with arms around — Stock Photo
    Portrait of two cheerful female students sitting on steps with arms around
    Portrait of smiling female teacher wearing protective eyewear, standing behind desk with microscope and test tubes in rack, students in background — Stock Photo
    Portrait of smiling female teacher wearing protective eyewear, standing behind desk with microscope and test tubes in rack, students in background
    Portrait confident smiling college students — Stock Photo
    Portrait confident smiling college students
    Female teacher and curious girl students examining molecular structure in laboratory classroom — Stock Photo
    Female teacher and curious girl students examining molecular structure in laboratory classroom
    College students studying together in classroom — Stock Photo
    College students studying together in classroom
    Happy junior high schoolgirl — Stock Photo
    Happy junior high schoolgirl
    Portrait confident junior high school girl student doing homework in classroom — Stock Photo
    Portrait confident junior high school girl student doing homework in classroom
    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 teenage mixed-race boy in a school classroom sitting at desk, concentrating and reading, with teenage male and female classmates sitting at desks working around him — Stock Photo
    Front view of a teenage mixed-race boy in a school classroom sitting at desk, concentrating and reading, with teenage male and female classmates sitting at desks working around him
    Teacher and junior high school students using futuristic touch screen in classroom — Stock Photo
    Teacher and junior high school students using futuristic touch screen in classroom
    Teacher helping junior high school students at desk in classroom — Stock Photo
    Teacher helping junior high school students at desk in classroom
    Front view of multi-ethnic group of teenagers in a high school classroom sitting at desks, all raising their hands to answer a question — Stock Photo
    Front view of multi-ethnic group of teenagers in a high school classroom sitting at desks, all raising their hands to answer a question
    Side view of a teenage African American male high school student reading to a multi-ethnic class of teenagers sitting at desks in a school classroom listening and concentrating — Stock Photo
    Side view of a teenage African American male high school student reading to a multi-ethnic class of teenagers sitting at desks in a school classroom listening and concentrating
    Junior high students using digital tablet — Stock Photo
    Junior high students using digital tablet
    Two handsome teenage boys with skateboard standing on the bridge — Stock Photo
    Two handsome teenage boys with skateboard standing on the bridge
    Front view of a multi-ethnic group of male and female teenager students sitting on a wall talking and using tablet computers in their school grounds — Stock Photo
    Front view of a multi-ethnic group of male and female teenager students sitting on a wall talking and using tablet computers in their school grounds
    Girl students examining liquid in beaker, conducting scientific experiment in laboratory classroom — Stock Photo
    Girl students examining liquid in beaker, conducting scientific experiment in laboratory 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
    Front view of multi-ethnic group of teenage boys and girls holding scripts and performing on the stage of a school theatre during rehearsals for a performance — Stock Photo
    Front view of multi-ethnic group of teenage boys and girls holding scripts and performing on the stage of a school theatre during rehearsals for a performance
    University students studying in library — Stock Photo
    University students studying in library
    Front view of a Caucasian teenage girl and boy sitting on the edge of the stage holding scripts and smiling at each other in an empty school theatre during rehearsals for a performance — Stock Photo
    Front view of a Caucasian teenage girl and boy sitting on the edge of the stage holding scripts and smiling at each other in an empty school theatre during rehearsals for a performance
    High school teacher supervising students taking exam at desks — Stock Photo
    High school teacher supervising students taking exam at desks
    Female students performing science experiment — Stock Photo
    Female students performing science experiment
    Front view close up of a teenage mixed-race boy in a school classroom sitting at desk, concentrating and using tablet computer, with teenage male and female classmates sitting at desks working in the background — Stock Photo
    Front view close up of a teenage mixed-race boy in a school classroom sitting at desk, concentrating and using tablet computer, with teenage male and female classmates sitting at desks working in the background
    Portrait close up of a Caucasian teenage boy with dark hair and grey eyes sitting at a desk in a school classroom wearing headphones and looking at of a window — 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 and looking at of a window
    Junior high school boy student doing homework in classroom — Stock Photo
    Junior high school boy student doing homework in classroom
    Junior high school students at desks in classroom — Stock Photo
    Junior high school students at desks in classroom