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    High school students watching teacher leading lesson at whiteboard in classroom — Stock Photo
    High school students watching teacher leading lesson at whiteboard in classroom
    Closeup on lettuce grown on an above-ground tray. — Stock Photo
    Closeup on lettuce grown on an above-ground tray.
    Teenage girls practicing experiment while standing in lab — Stock Photo
    Teenage girls practicing experiment while standing in lab
    High angle side view of a Caucasian male teacher sitting in a classroom conducting a multi-ethnic group of teenage male and female musicians at a school band practice — Stock Photo
    High angle side view of a Caucasian male teacher sitting in a classroom conducting a multi-ethnic group of teenage male and female musicians at a school band practice
    Side view of a team of female Caucasian field hockey players, during a field hockey game, celebrating a goal, with disappointed opponents standing in the background, on a sunny day — Stock Photo
    Side view of a team of female Caucasian field hockey players, during a field hockey game, celebrating a goal, with disappointed opponents standing in the background, on a sunny day
    Front view close up of a Caucasian teenage boy musician with grey t-shirt sitting in front of a window playing a trombone at school — Stock Photo
    Front view close up of a Caucasian teenage boy musician with grey t-shirt sitting in front of a window playing a trombone at school
    Side view of a Caucasian teenage boy standing on stage holding a script in an empty school theatre during rehearsals for a performance — Stock Photo
    Side view of a Caucasian teenage boy standing on stage holding a script in an empty school theatre during rehearsals for a performance
    Schoolkids holding sketch pens in classroom at school — Stock Photo
    Schoolkids holding sketch pens in classroom at school
    Female student sitting alone in classroom during GCSE exam — Stock Photo
    Female student sitting alone in classroom during GCSE exam
    Girl student conducting scientific experiment in laboratory classroom — Stock Photo
    Girl student conducting scientific experiment in laboratory classroom
    High school students talking in classroom — Stock Photo
    High school students talking in classroom
    Rear view of a Caucasian male field hockey goalkeeper, diving to stop the ball with a hockey stick while training on the hockey pitch, with his teammates in the background on a sunny day — Stock Photo
    Rear view of a Caucasian male field hockey goalkeeper, diving to stop the ball with a hockey stick while training on the hockey pitch, with his teammates in the background on a sunny day
    High school teacher talking, leading lesson in classroom — Stock Photo
    High school teacher talking, leading lesson in classroom
    Curious boy examining DNA model in classroom — Stock Photo
    Curious boy examining DNA model in classroom
    Rear view of a group of female Caucasian field hockey players, preparing before a game, standing in a row embracing, on a sunny day — Stock Photo
    Rear view of a group of female Caucasian field hockey players, preparing before a game, standing in a row embracing, on a sunny day
    High school students talking in debate class at table in classroom — Stock Photo
    High school students talking in debate class at table in classroom
    Male and female student standing in lab — Stock Photo
    Male and female student standing in lab
    Students studying in the classroom at school — Stock Photo
    Students studying in the classroom at school
    Portrait close up of a Caucasian teenage boy with dark hair and grey eyes sitting at a desk in a school classroom looking straight to camera — Stock Photo
    Portrait close up of a Caucasian teenage boy with dark hair and grey eyes sitting at a desk in a school classroom looking straight to camera
    Junior high school students using smartphone at desk in classroom — Stock Photo
    Junior high school students using smartphone at desk in classroom
    Front view of two teenage African American female school pupils in a classroom, sitting at a table working together and talking — Stock Photo
    Front view of two teenage African American female school pupils in a classroom, sitting at a table working together and talking
    Teenage girl using digital tablet while standing by desk in lab — Stock Photo
    Teenage girl using digital tablet while standing by desk in lab
    Side view of multi-ethnic group of high school teenagers in a school classroom sitting at desks, all raising their hands to answer a question — Stock Photo
    Side view of multi-ethnic group of high school teenagers in a school classroom sitting at desks, all raising their hands to answer a question
    Smiling, eager girl student asking a question in classroom — Stock Photo
    Smiling, eager girl student asking a question in classroom
    Courtyard Of Coimbra University — Stock Photo
    Courtyard Of Coimbra University
    Cropped image of teenage girl using smartphone at desk in classroom — Stock Photo
    Cropped image of teenage girl using smartphone at desk in classroom
    High school girls talking on stairs — Stock Photo
    High school girls talking on stairs
    Side view of a mixed race male field hockey player, training on a field hockey pitch before a game, kneeling and trying to hit a ball with a hockey stick, with his teammates in the background on a sunny day — Stock Photo
    Side view of a mixed race male field hockey player, training on a field hockey pitch before a game, kneeling and trying to hit a ball with a hockey stick, with his teammates in the background on a sunny day
    Female student using microscope while practicing experiment in lab — Stock Photo
    Female student using microscope while practicing experiment in lab
    Attentive high school students listening in classroom — Stock Photo
    Attentive high school students listening in classroom
    Digital molecular model of secondary structure of immunoglobulin G antibody. — Stock Photo
    Digital molecular model of secondary structure of immunoglobulin G antibody.
    Side view of a Caucasian male field hockey coach interacting with a group of female Caucasian field hockey players, sitting in a changing room, holding a digital tablet — Stock Photo
    Side view of a Caucasian male field hockey coach interacting with a group of female Caucasian field hockey players, sitting in a changing room, holding a digital tablet
    Empty seats in a school theatre auditorium, with the house lights on in a high school — Stock Photo
    Empty seats in a school theatre auditorium, with the house lights on in a high school
    Female university student holding equipment while practicing experiment in laboratory — Stock Photo
    Female university student holding equipment while practicing experiment in laboratory
    Side view of a multi-ethnic group of high school teenage male and female school pupils in a classroom, sitting at a table working together, talking and smiling — Stock Photo
    Side view of a multi-ethnic group of high school teenage male and female school pupils in a classroom, sitting at a table working together, talking and smiling
    Portrait close up of a teenage African American male field hockey player, wearing a red team strip, standing in the changing room, looking straight to camera, focusing before a game — Stock Photo
    Portrait close up of a teenage African American male field hockey player, wearing a red team strip, standing in the changing room, looking straight to camera, focusing before a game
    France, Northern France, Pas de Calais. Harvest; — Stock Photo
    France, Northern France, Pas de Calais. Harvest;
    Portrait close up of a Caucasian male field hockey player with red hair, wearing a red team strip, standing on a hockey pitch looking to camera on a sunny day — Stock Photo
    Portrait close up of a Caucasian male field hockey player with red hair, wearing a red team strip, standing on a hockey pitch looking to camera on a sunny day
    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 group of female Caucasian field hockey players, preparing before a game, huddling, with one player talking to her Caucasian male coach in the foreground, on a sunny day — Stock Photo
    Side view of a group of female Caucasian field hockey players, preparing before a game, huddling, with one player talking to her Caucasian male coach in the foreground, 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
    Front view of a male Caucasian teacher standing and talking to a mixed race teenager male student sitting at his desk using a laptop in a high school classroom, with his multi-ethnic male and female classmates sitting at desks working around him — Stock Photo
    Front view of a male Caucasian teacher standing and talking to a mixed race teenager male student sitting at his desk using a laptop in a high school classroom, with his multi-ethnic male and female classmates sitting at desks working around him
    Male teacher with students in classroom at school — Stock Photo
    Male teacher with students in classroom at school
    Portrait smiling girl student sitting in classroom during lesson — Stock Photo
    Portrait smiling girl student sitting in classroom during lesson
    Female teacher and junior high school students studying at desk in classroom — Stock Photo
    Female teacher and junior high school students studying at desk in classroom
    Portrait of smiling, confident junior student carrying books in library — Stock Photo
    Portrait of smiling, confident junior student carrying books in library
    Portrait confident junior high school boy student doing homework in classroom — Stock Photo
    Portrait confident junior high school boy student doing homework in classroom
    Female student writing at desk in classroom — Stock Photo
    Female student writing at desk in classroom
    Front view close up of a Caucasian teenage girl sitting at a desk in a school classroom looking out of the window, with classmates sitting at desks in the background — Stock Photo
    Front view close up of a Caucasian teenage girl sitting at a desk in a school classroom looking out of the window, with classmates sitting at desks in the background
    Front view of two Caucasian teenage girls with long dark hair sitting in front of a window playing a flute and a ukulele — Stock Photo
    Front view of two Caucasian teenage girls with long dark hair sitting in front of a window playing a flute and a ukulele
    Junior high school students studying at desks in classroom — Stock Photo
    Junior high school students studying at desks in classroom
    Students programming and testing robotics in classroom — Stock Photo
    Students programming and testing robotics in classroom
    Rear view of a group of female Caucasian field hockey players, preparing before a game, standing in a row embracing, on a sunny day — Stock Photo
    Rear view of a group of female Caucasian field hockey players, preparing before a game, standing in a row embracing, on a sunny day
    High angle view of a multi-ethnic group of teenage school pupils sitting and standing around a table in a classroom using laptop and tablet computers together at break time looking up to camera and smiling — Stock Photo
    High angle view of a multi-ethnic group of teenage school pupils sitting and standing around a table in a classroom using laptop and tablet computers together at break time looking up to camera and smiling
    Group portrait of a multi-ethnic group of eight teenage male and female musicians sitting in a row in a classroom holding their instruments during a school band practice — Stock Photo
    Group portrait of a multi-ethnic group of eight teenage male and female musicians sitting in a row in a classroom holding their instruments during a school band practice
    Portrait of a Caucasian female field hockey player, preparing before a game, standing on a hockey pitch, looking at camera, holding a hockey stick on her shoulders, with her teammates standing in the background on a sunny day — Stock Photo
    Portrait of a Caucasian female field hockey player, preparing before a game, standing on a hockey pitch, looking at camera, holding a hockey stick on her shoulders, with her teammates standing in the background on a sunny day
    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
    Front view of a mixed race teenage girl standing on stage holding a script in an empty school theatre during rehearsals for a performance — Stock Photo
    Front view of a mixed race teenage girl standing on stage holding a script in an empty school theatre during rehearsals for a performance
    Front view close up of a Caucasian teenage female high school pupil, using a tablet and sitting on steps in the school grounds — Stock Photo
    Front view close up of a Caucasian teenage female high school pupil, using a tablet and sitting on steps in the school grounds
    Girl student programming and assembling robotics in classroom — Stock Photo
    Girl student programming and assembling robotics in classroom