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    Smiling girl students researching at computer in laboratory classroom — Stock Photo
    Smiling girl students researching at computer in laboratory classroom
    Overhead view of a teenage Caucasian girl in a school classroom sitting at desk, concentrating and using a laptop computer — Stock Photo
    Overhead view of a teenage Caucasian girl in a school classroom sitting at desk, concentrating and using a laptop computer
    Teenagers with video camera and microphone vlogging — Stock Photo
    Teenagers with video camera and microphone vlogging
    Thoughtful young college student studying at desk in classroom — Stock Photo
    Thoughtful young college student studying at desk in classroom
    Boy students examining liquid in test tube, conducting scientific experiment in laboratory classroom — Stock Photo
    Boy students examining liquid in test tube, conducting scientific experiment in laboratory 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
    Students going out of classroom after lesson — Stock Photo
    Students going out of classroom after lesson
    Teacher leading lesson at touch screen in classroom — Stock Photo
    Teacher leading lesson at touch screen in classroom
    Portrait of smiling, confident junior high school student doing homework in classroom — Stock Photo
    Portrait of smiling, confident junior high school student doing homework in classroom
    Group portrait of schoolchildren wearing school uniforms standing in corridor and smiling — Stock Photo
    Group portrait of schoolchildren wearing school uniforms standing in corridor and smiling
    Portrait of teenage girl with arms crossed standing by desk in lab — Stock Photo
    Portrait of teenage girl with arms crossed standing by desk in lab
    Surprised students conducting exploding foam scientific experiment in classroom laboratory — Stock Photo
    Surprised students conducting exploding foam scientific experiment in classroom laboratory
    Teachers talking at library — Stock Photo
    Teachers talking at library
    Portrait smiling, confident junior high teachers in library — Stock Photo
    Portrait smiling, confident junior high teachers in library
    Teachers tutoring students at library table — Stock Photo
    Teachers tutoring students at library table
    Female teacher in hijab leading lesson at projection screen in classroom — Stock Photo
    Female teacher in hijab leading lesson at projection screen in classroom
    Side view of a multi-ethnic group of high school teenage male and female school pupils hanging out, talking and looking at a smartphone together, sitting on steps in their school grounds — Stock Photo
    Side view of a multi-ethnic group of high school teenage male and female school pupils hanging out, talking and looking at a smartphone together, sitting on steps in their school grounds
    Side view of a African American teenage girl in an empty high school theatre, sitting in the auditorium preparing for a performance, holding a script and learning lines — Stock Photo
    Side view of a African American teenage girl in an empty high school theatre, sitting in the auditorium preparing for a performance, holding a script and learning lines
    Schoolboy standing in the classroom at school — Stock Photo
    Schoolboy standing in the classroom at school
    Girl practicing science experiment in laboratory — Stock Photo
    Girl practicing science experiment in laboratory
    Female science teacher and students in laboratory classroom — Stock Photo
    Female science teacher and students in laboratory classroom
    Smiling teenage girl being interviewed for vlog — Stock Photo
    Smiling teenage girl being interviewed for vlog
    Smiling girl students examining liquid in test tube, conducting scientific experiment in laboratory classroom — Stock Photo
    Smiling girl students examining liquid in test tube, conducting scientific experiment in laboratory classroom
    Curious, smiling girl students listening in classroom — Stock Photo
    Curious, smiling girl students listening in classroom
    Students studying in the class at school — Stock Photo
    Students studying in the class at school
    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
    High school students with hands raised in classroom — Stock Photo
    High school students with hands raised in classroom
    Schoolgirl standing near chalkboard in classroom at school — Stock Photo
    Schoolgirl standing near chalkboard in classroom at school
    Curious, smiling students watching chemical reaction, conducting scientific experiment in laboratory classroom — Stock Photo
    Curious, smiling students watching chemical reaction, conducting scientific experiment in laboratory classroom
    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
    Girl student using microscope, conducting scientific experiment in laboratory classroom — Stock Photo
    Girl student using microscope, conducting scientific experiment in laboratory classroom