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    Schoolboy writing on chalkboard in classroom at school — Stock Photo
    Schoolboy writing on chalkboard in classroom at school
    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
    Close up detail of a field hockey equipment, helmet glove and ball lying on a hockey pitch on a sunny day — Stock Photo
    Close up detail of a field hockey equipment, helmet glove and ball lying on a hockey pitch on a sunny day
    Portrait of a Caucasian female field hockey players, training before a game, standing on a hockey pitch with a hockey stick on her shoulder, 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 with a hockey stick on her shoulder, looking at camera, with her teammates standing in a row behind her on a sunny day
    University students performing experiment in lab — Stock Photo
    University students performing experiment in lab
    Students using computer in classroom — Stock Photo
    Students using computer in classroom
    Junior high school boys using digital tablet in classroom — Stock Photo
    Junior high school boys using digital tablet 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 close up of a Caucasian teenage girl sitting in front of a window playing a flute, selective focus — Stock Photo
    Side view close up of a Caucasian teenage girl sitting in front of a window playing a flute, selective focus
    Side view of a Caucasian female field hockey player preparing before a game, sitting in a changing room, holding a hockey helmet — Stock Photo
    Side view of a Caucasian female field hockey player preparing before a game, sitting in a changing room, holding a hockey helmet
    Ovary. Light micrograph (LM) of section through whole ovary. Cortex (outer region) contains numerous corpora lutea (pink) and follicles (purple) at various stages of development — Stock Photo
    Ovary. Light micrograph (LM) of section through whole ovary. Cortex (outer region) contains numerous corpora lutea (pink) and follicles (purple) at various stages of development
    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
    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
    Side view of a teenage Caucasian boy and a teenage African American girl in a high school classroom sitting at desks, working together and reading, with teenage classmates sitting at desks working in the background — Stock Photo
    Side view of a teenage Caucasian boy and a teenage African American girl in a high school classroom sitting at desks, working together and reading, with teenage classmates sitting at desks working in the background
    Female student sitting alone in classroom during GCSE exam — Stock Photo
    Female student sitting alone in classroom during GCSE exam
    Side view of female teenage student reading book while sitting by shelf in library — Stock Photo
    Side view of female teenage student reading book while sitting by shelf in library
    Portrait of confident junior high school student leaving classroom — Stock Photo
    Portrait of confident junior high school student leaving classroom
    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
    Front view of two Caucasian teenage female school pupils with schoolbags hanging out, walking and looking at a smartphone together in their high school grounds, with classmates hanging out in the background — Stock Photo
    Front view of two Caucasian teenage female school pupils with schoolbags hanging out, walking and looking at a smartphone together in their high school grounds, with classmates hanging out in the background
    Young students practicing chemistry experiment in lab — Stock Photo
    Young students practicing chemistry experiment in lab
    Side view of a mixed race teenage male high school student in a classroom, working on a computer and concentrating, with other pupils working on computers in the background — Stock Photo
    Side view of a mixed race teenage male high school student in a classroom, working on a computer and concentrating, with other pupils working on computers in the background
    Happy female teacher talking with colleague — Stock Photo
    Happy female teacher talking with colleague
    Junior high school students in classroom — Stock Photo
    Junior high school students in classroom
    Portrait confident students holding molecular structures in laboratory classroom — Stock Photo
    Portrait confident students holding molecular structures in laboratory classroom
    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
    Side view of teenage girl practicing experiment while using microscope in lab — Stock Photo
    Side view of teenage girl practicing experiment while using microscope in lab
    Front view of a multi-ethnic group of teenage school pupils and their Caucasian male teacher standing in a classroom looking at laptop computers together, the pupils listening while the teacher talks — Stock Photo
    Front view of a multi-ethnic group of teenage school pupils and their Caucasian male teacher standing in a classroom looking at laptop computers together, the pupils listening while the teacher talks
    Junior high school students using virtual reality simulators in classroom — Stock Photo
    Junior high school students using virtual reality simulators in classroom
    Side view of a Caucasian female director and a multi-ethnic group of teenage male and female choristers standing opposite each other holding sheet music and singing on the stage of a school theatre during rehearsals for a performance — Stock Photo
    Side view of a Caucasian female director and a multi-ethnic group of teenage male and female choristers standing opposite each other holding sheet music and singing on the stage of a school theatre during rehearsals for a performance
    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.
    Junior high students using computers in computer lab — Stock Photo
    Junior high students using computers in computer lab
    College students writing on book while sitting at desks during exam in classroom — Stock Photo
    College students writing on book while sitting at desks during exam in 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
    Teenage girls practicing experiment while standing in lab — Stock Photo
    Teenage girls practicing experiment while standing in lab
    Side view of a group of female Caucasian field hockey players, training before a game, working out on a field hockey pitch, doing push ups, on a sunny day — Stock Photo
    Side view of a group of female Caucasian field hockey players, training before a game, working out on a field hockey pitch, doing push ups, on a sunny day
    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
    High school girl student raising hand, asking question during lesson in classroom — Stock Photo
    High school girl student raising hand, asking question during lesson in classroom
    Front view of a multi-ethnic group of teenage male and female high school pupils with schoolbags hanging out, talking and walking down steps in their school grounds — Stock Photo
    Front view of a multi-ethnic group of teenage male and female high school pupils with schoolbags hanging out, talking and walking down steps in their school grounds
    Front view of a group of female Caucasian field hockey players preparing before a game, standing in a changing room, one is putting her hand on a shoulder of her teammate — Stock Photo
    Front view of a group of female Caucasian field hockey players preparing before a game, standing in a changing room, one is putting her hand on a shoulder of her teammate
    Side view of a Caucasian male high school teacher, standing and talking with a teenage Caucasian girl in a school classroom sitting a desk, with teenage classmates sitting at desks working in the background — Stock Photo
    Side view of a Caucasian male high school teacher, standing and talking with a teenage Caucasian girl in a school classroom sitting a desk, with teenage classmates sitting at desks working in the background
    Front view of a male Caucasian teacher holding a tablet 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 holding a tablet and talking to a multi-ethnic group of teenagers in a school high school classroom sitting at desks and listening
    Junior high students walking around smiling female teacher — Stock Photo
    Junior high students walking around smiling female teacher
    Thoughtful male student with classmates at desk in classroom — Stock Photo
    Thoughtful male student with classmates at desk in 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
    Smiling girl students researching at computer in laboratory classroom — Stock Photo
    Smiling girl students researching at computer in laboratory classroom
    Schoolkids studying in the classroom at school — Stock Photo
    Schoolkids studying in the classroom at school
    Portrait of a Caucasian teenage boy sitting at a desk in a school classroom looking out of the window, thinking — Stock Photo
    Portrait of a Caucasian teenage boy sitting at a desk in a school classroom looking out of the window, thinking
    Female students reading book while standing by shelf in library — Stock Photo
    Female students reading book while standing by shelf in library
    Portrait smiling, confident junior high school girl in classroom — Stock Photo
    Portrait smiling, confident junior high school girl in classroom
    Side view of a multi-ethnic group of teenage pupils sitting at desks in class studying at school with a Caucasian male teacher standing and talking to one Caucasian girl at her desk — Stock Photo
    Side view of a multi-ethnic group of teenage pupils sitting at desks in class studying at school with a Caucasian male teacher standing and talking to one Caucasian girl at her desk
    Front view of a Caucasian and a mixed race teenage girls holding scripts sitting on the stage of a school theatre during rehearsals for a performance — Stock Photo
    Front view of a Caucasian and a mixed race teenage girls holding scripts sitting on the stage of a school theatre during rehearsals for a performance
    Teenage girl using tablet while standing in lab — Stock Photo
    Teenage girl using tablet while standing in lab
    Low angle front view of a Caucasian teenage female high school student in an empty high school theatre preparing before a performance, standing on the stage, holding a script and practicing her part — Stock Photo
    Low angle front view of a Caucasian teenage female high school student in an empty high school theatre preparing before a performance, standing on the stage, holding a script and practicing her part
    Focused junior high school student using digital tablet in classroom — Stock Photo
    Focused junior high school student using digital tablet in classroom
    Teenagers playing pool at school — Stock Photo
    Teenagers playing pool at school
    Smiling, eager girl student asking a question in classroom — Stock Photo
    Smiling, eager girl student asking a question in classroom
    France, central Southern France, The regional natural park of Haut-Languedoc, la Montagne Noire — Stock Photo
    France, central Southern France, The regional natural park of Haut-Languedoc, la Montagne Noire
    Junior high school students studying in classroom — Stock Photo
    Junior high school students studying in classroom
    Schoolkids studying in the classroom at school — Stock Photo
    Schoolkids studying in the classroom at school
    Side view of a mixed race teenage boy and African American teenage girl high school student sitting on chairs in an empty school theatre preparing before a performance, holding scripts and rehearsing together — Stock Photo
    Side view of a mixed race teenage boy and African American teenage girl high school student sitting on chairs in an empty school theatre preparing before a performance, holding scripts and rehearsing together