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    Junior high students talking in library — Stock Photo
    Junior high students talking in library
    Portrait of confident junior high students — Stock Photo
    Portrait of confident junior high students
    Schoolkids studying in the classroom at school — Stock Photo
    Schoolkids studying in the classroom at school
    Close up of male student practicing experiment in lab — Stock Photo
    Close up of male student practicing experiment in lab
    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
    Over the shoulder view of a Caucasian male field hockey coach holding a clipboard, surrounded by a multi-ethnic group of teenage male field hockey players, listening to him on a sunny day while he explains a game plan — Stock Photo
    Over the shoulder view of a Caucasian male field hockey coach holding a clipboard, surrounded by a multi-ethnic group of teenage male field hockey players, listening to him on a sunny day while he explains a game plan
    Teenagers and teacher talking in community center — Stock Photo
    Teenagers and teacher talking in community center
    Front view of a multi-ethnic group of teenagers in discussion, holding scripts and smiling in the auditorium of an empty school theatre during rehearsals for a performance — Stock Photo
    Front view of a multi-ethnic group of teenagers in discussion, holding scripts and smiling in the auditorium of an empty school theatre during rehearsals for a performance
    Male teacher and students conducting scientific experiment in laboratory classroom — Stock Photo
    Male teacher and students conducting scientific experiment in laboratory classroom
    Front view of a teenage Caucasian boy in a school classroom sitting at desk, concentrating, with teenage male and female classmates sitting at desks working in the background — Stock Photo
    Front view of a teenage Caucasian boy in a school classroom sitting at desk, concentrating, with teenage male and female classmates sitting at desks working in the background
    Portrait of confident elementary age boy doing homework in classroom — Stock Photo
    Portrait of confident elementary age boy doing homework in classroom
    High school students watching teacher leading lesson at whiteboard in classroom — Stock Photo
    High school students watching teacher leading lesson at whiteboard in classroom
    Teenage girl with hand on chin using tablet computer while sitting at desk in classroom — Stock Photo
    Teenage girl with hand on chin using tablet computer while sitting at desk in classroom
    Secondary follicles in an ovary — Stock Photo
    Secondary follicles in an ovary
    Girl student examining pink liquid, conducting scientific experiment in laboratory classroom — Stock Photo
    Girl student examining pink liquid, conducting scientific experiment in laboratory classroom
    High school students watching teacher at projection screen during lesson in classroom — Stock Photo
    High school students watching teacher at projection screen during lesson in classroom
    Students studying in the classroom at school — Stock Photo
    Students studying in the classroom at school
    Low angle view, looking up at a multi-ethnic team of teenage male field hockey players and their Caucasian male field hockey coach preparing before a game, in a huddle on the pitch, interacting on a sunny day — Stock Photo
    Low angle view, looking up at a multi-ethnic team of teenage male field hockey players and their Caucasian male field hockey coach preparing before a game, in a huddle on the pitch, interacting on a sunny day
    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
    High school boy student taking notes, writing in notebook in classroom — Stock Photo
    High school boy student taking notes, writing in notebook in classroom
    Junior high school girl student using computer in classroom — Stock Photo
    Junior high school girl student using computer in classroom
    Thoughtful schoolkid sitting in the classroom at school — Stock Photo
    Thoughtful schoolkid sitting in the classroom at school
    Thoughtful female college student at desk during exam in classroom — Stock Photo
    Thoughtful female college student at desk during exam in classroom
    Students studying in the classroom at school — Stock Photo
    Students studying in the classroom at school
    Students watching chemical reaction, conducting scientific experiment in laboratory classroom — Stock Photo
    Students watching chemical reaction, conducting scientific experiment in laboratory classroom
    Portrait of a Caucasian female field hockey players, training before a game, standing on a hockey pitch, looking at camera, with her teammates standing in a row behind her on a sunny day — Stock Photo
    Portrait of a Caucasian female field hockey players, training before a game, standing on a hockey pitch, looking at camera, with her teammates standing in a row behind her on a sunny day
    Teenagers playing pool indoors — Stock Photo
    Teenagers playing pool indoors
    Rear view of a multi-ethnic group of teenage male and female school pupils with schoolbags hanging out, walking in their high school grounds, one carrying a skateboard — Stock Photo
    Rear view of a multi-ethnic group of teenage male and female school pupils with schoolbags hanging out, walking in their high school grounds, one carrying a skateboard
    Side view close up of a teenage multi-ethnic group of male field hockey players in a huddle in the changing room, preparing before a game, focusing — Stock Photo
    Side view close up of a teenage multi-ethnic group of male field hockey players in a huddle in the changing room, preparing before a game, focusing
    Female university student using digital tablet while sitting at desk in classroom — Stock Photo
    Female university student using digital tablet while sitting at desk in classroom
    Curious girl student holding molecule model in classroom — Stock Photo
    Curious girl student holding molecule model in classroom
    Low section front view close up of female high school student, using a smartphone and sitting on steps in the school grounds — Stock Photo
    Low section front view close up of female high school student, using a smartphone and sitting on steps in the school grounds
    Schoolkids holding hands in school campus on a sunny day — Stock Photo
    Schoolkids holding hands in school campus on a sunny day
    Teenage girls designing denim jacket in fashion design class — Stock Photo
    Teenage girls designing denim jacket in fashion design class
    Female geography teacher with globe teaching lesson in classroom — Stock Photo
    Female geography teacher with globe teaching lesson in classroom
    Schoolgirl writing on chalkboard in classroom at school — Stock Photo
    Schoolgirl writing on chalkboard in classroom at school
    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
    France, Normandy, Montmartin-sur-Mer, Haystacks mechanically rolled at the time of harvest. — Stock Photo
    France, Normandy, Montmartin-sur-Mer, Haystacks mechanically rolled at the time of harvest.
    Digital illustration of solid node in right lung near lung apex while secondary tuberculosis infection. — Stock Photo
    Digital illustration of solid node in right lung near lung apex while secondary tuberculosis infection.
    Side view of a Caucasian male field hockey coach standing and interacting with a multi-ethnic group of teenage male field hockey players, sitting in a changing room listening to his instructions — Stock Photo
    Side view of a Caucasian male field hockey coach standing and interacting with a multi-ethnic group of teenage male field hockey players, sitting in a changing room listening to his instructions
    Male teacher supervising students writing their GCSE exam in classroom — Stock Photo
    Male teacher supervising students writing their GCSE exam in classroom
    Male teacher teaching students in the classroom at school — Stock Photo
    Male teacher teaching students in the classroom at school
    Focused junior high boy student using computer in computer lab — Stock Photo
    Focused junior high boy student using computer in computer lab
    Side view mid section of musician teenage girl sitting by a window in a shadow and playing a ukulele — Stock Photo
    Side view mid section of musician teenage girl sitting by a window in a shadow and playing a ukulele
    Students programming and testing robotics in classroom — Stock Photo
    Students programming and testing robotics in classroom
    Rear view of a Caucasian male field hockey coach standing and interacting with a multi-ethnic group of teenage male field hockey players, sitting in a changing room listening to his instructions — Stock Photo
    Rear view of a Caucasian male field hockey coach standing and interacting with a multi-ethnic group of teenage male field hockey players, sitting in a changing room listening to his instructions
    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
    Curious girl examining molecule model in classroom — Stock Photo
    Curious girl examining molecule model in classroom
    Secondary brain cancer — Stock Photo
    Secondary brain cancer
    Portrait enthusiastic junior high students and teachers cheering with arms raised — Stock Photo
    Portrait enthusiastic junior high students and teachers cheering with arms raised
    Portrait of a Caucasian male field hockey coach, preparing his team for a game, standing on a hockey pitch, looking at camera, with his team standing in the background on a sunny day — Stock Photo
    Portrait of a Caucasian male field hockey coach, preparing his team for a game, standing on a hockey pitch, looking at camera, with his team standing in the background on a sunny day
    Side view of a teenage Caucasian male field hockey player in action on the pitch, preparing to hit a ball during a hockey game on a sunny day — Stock Photo
    Side view of a teenage Caucasian male field hockey player in action on the pitch, preparing to hit a ball during a hockey game on a sunny day
    Teacher helping junior high school students at desk in classroom — Stock Photo
    Teacher helping junior high school students at desk in classroom
    Side view of a multi-ethnic group of teenage male field hockey players and a Caucasian field hockey coach, preparing before a game, working out on a field hokey pitch, doing bend downs in a circle on a sunny day — Stock Photo
    Side view of a multi-ethnic group of teenage male field hockey players and a Caucasian field hockey coach, preparing before a game, working out on a field hokey pitch, doing bend downs in a circle on a sunny day
    Portrait of confident junior high teacher in library — Stock Photo
    Portrait of confident junior high teacher in library
    Digital molecular model of secondary structure of immunoglobulin G antibodies. — Stock Photo
    Digital molecular model of secondary structure of immunoglobulin G antibodies.
    Male science teacher and students laughing, conducting scientific experiment in laboratory classroom — Stock Photo
    Male science teacher and students laughing, conducting scientific experiment in laboratory classroom
    Smiling high school students talking in debate class — Stock Photo
    Smiling high school students talking in debate class
    Side view close up of a teenage mixed-race boy in a school classroom sitting at desk, concentrating, with teenage male and female classmates sitting at desks working in the background — Stock Photo
    Side view close up of a teenage mixed-race boy in a school classroom sitting at desk, concentrating, with teenage male and female classmates sitting at desks working in the background
    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