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    Female student using microscope while practicing experiment in lab — Stock Photo
    Female student using microscope while practicing experiment in lab
    Junior high school students in classroom — Stock Photo
    Junior high school students in classroom
    Digital molecular model of secondary structure of immunoglobulin G antibodies. — Stock Photo
    Digital molecular model of secondary structure of immunoglobulin G antibodies.
    Portrait of a mixed race 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 mixed race teenage girl with long, dark hair and brown eyes standing in a school classroom smiling to camera, with classmates talking in the background
    Side view of a Caucasian male high school teacher sitting on a chair on the stage in an empty school theatre during rehearsals for a performance, preparing a multi-ethnic group of teenager high school students for a performance — Stock Photo
    Side view of a Caucasian male high school teacher sitting on a chair on the stage in an empty school theatre during rehearsals for a performance, preparing a multi-ethnic group of teenager high school students for a performance
    Portrait of a Caucasian female field hockey player, training before a game, working out on a hockey pitch, looking at camera, with her teammates in the background on a sunny day — Stock Photo
    Portrait of a Caucasian female field hockey player, training before a game, working out on a hockey pitch, looking at camera, with her teammates in the background on a sunny day
    Smiling girl conducting scientific experiment in laboratory classroom — Stock Photo
    Smiling girl conducting scientific experiment in laboratory classroom
    Side view close up of a multi-ethnic 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 multi-ethnic 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
    Focused girl student assembling circuit board in classroom — Stock Photo
    Focused girl student assembling circuit board in classroom
    Side view of a group of female Caucasian field hockey players, preparing before a game, concentrating, motivating, huddling, on a sunny day — Stock Photo
    Side view of a group of female Caucasian field hockey players, preparing before a game, concentrating, motivating, huddling, on a sunny day
    Secondary tuberculosis lungs infection and close-up of Mycobacterium tuberculosis bacteria. — Stock Photo
    Secondary tuberculosis lungs infection and close-up of Mycobacterium tuberculosis bacteria.
    Side view of a mixed race male field hockey player, training with teammates on a field hockey pitch before a game, preparing to hit a ball with a hockey stick, on a sunny day — Stock Photo
    Side view of a mixed race male field hockey player, training with teammates on a field hockey pitch before a game, preparing to hit a ball with a hockey stick, on a sunny day
    Schoolboy using mobile phone near chalkboard in classroom — Stock Photo
    Schoolboy using mobile phone near chalkboard in classroom
    Front view of a group of female Caucasian field hockey players and their Caucasian male coach training before a game, standing on a hockey pitch, resting, on a sunny day — Stock Photo
    Front view of a group of female Caucasian field hockey players and their Caucasian male coach training before a game, standing on a hockey pitch, resting, on a sunny day
    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
    High school boy student with hand raised during lesson in classroom — Stock Photo
    High school boy student with hand raised during lesson in classroom
    Front view of a Caucasian teenage boy sitting by a window holding an acoustic guitar, with a Caucasian teenage boy sitting behind him playing the saxophone in a high school — Stock Photo
    Front view of a Caucasian teenage boy sitting by a window holding an acoustic guitar, with a Caucasian teenage boy sitting behind him playing the saxophone in a high school
    Side view close up of a multi-ethnic group of teenage male and female choristers holding sheet music and laughing, standing on the stage of a school theatre during a break in rehearsals for a performance — Stock Photo
    Side view close up of a multi-ethnic group of teenage male and female choristers holding sheet music and laughing, standing on the stage of a school theatre during a break in rehearsals for a performance
    Focused high school girl student studying in classroom — Stock Photo
    Focused high school girl student studying in classroom
    University students practicing experiment in lab — Stock Photo
    University students practicing experiment in lab
    Side view of a Caucasian female field hockey player, during a field hockey game, executing a penalty kick, with a goal protected by a goalkeeper in the background, on a sunny day — Stock Photo
    Side view of a Caucasian female field hockey player, during a field hockey game, executing a penalty kick, with a goal protected by a goalkeeper in the background, on a sunny day
    Portrait close up of a Caucasian teenage boy with short blonde hair and blue eyes standing in a school classroom smiling to camera, with classmates talking in the background — Stock Photo
    Portrait close up of a Caucasian teenage boy with short blonde hair and blue eyes standing in a school classroom smiling to camera, with classmates talking in the background
    Junior high school girl student using computer in classroom — Stock Photo
    Junior high school girl student using computer in classroom
    Junior high school students listening in classroom — Stock Photo
    Junior high school students listening in classroom
    Secondary tuberculosis lungs infection and close-up of Mycobacterium tuberculosis bacteria. — Stock Photo
    Secondary tuberculosis lungs infection and close-up of Mycobacterium tuberculosis bacteria.
    Happy boys with basketball ball in schoolyard — Stock Photo
    Happy boys with basketball ball in schoolyard
    Portrait confident junior high female students on steps — Stock Photo
    Portrait confident junior high female students on steps
    Rear view of a Caucasian male high school teacher sitting on a chair on the stage in an empty school theatre during rehearsals for a performance, holding a script, with arms outstretched — Stock Photo
    Rear view of a Caucasian male high school teacher sitting on a chair on the stage in an empty school theatre during rehearsals for a performance, holding a script, with arms outstretched
    Teenage girls designing denim jacket in fashion design class — Stock Photo
    Teenage girls designing denim jacket in fashion design class
    Teacher leading lesson, calling on students in classroom — Stock Photo
    Teacher leading lesson, calling on students in classroom
    Focused students using computer in dark classroom — Stock Photo
    Focused students using computer in dark classroom
    High angle front 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 front 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
    College students concentrating during lesson in classroom — Stock Photo
    College students concentrating during lesson in classroom
    Portrait of smiling, confident female teacher — Stock Photo
    Portrait of smiling, confident female teacher
    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
    High school students talking in debate class at table in classroom — Stock Photo
    High school students talking in debate class at table in classroom
    Portrait close up of a Caucasian teenage boy sitting by a window holding an acoustic guitar and looking to camera in a high school — Stock Photo
    Portrait close up of a Caucasian teenage boy sitting by a window holding an acoustic guitar and looking to camera in a high school
    Portrait of male college student with arms crossed standing in lab — Stock Photo
    Portrait of male college student with arms crossed standing in lab
    Junior high school students participating with hands raised in classroom — Stock Photo
    Junior high school students participating with hands raised in classroom
    Man assisting female friend while studying at desk in classroom — Stock Photo
    Man assisting female friend while studying at desk in classroom
    Side view mid section of group of teenage male and female choristers standing in a row holding sheet music on the stage of a school theatre during rehearsals for a performance — Stock Photo
    Side view mid section of group of teenage male and female choristers standing in a row holding sheet music on the stage of a school theatre during rehearsals for a performance
    France, Southern France, Vileveyrac, Cistercian abbey of Holy Mary of Valmagne, 13th century, gothic style, nave turned into a wine storehouse after the Revolution — Stock Photo
    France, Southern France, Vileveyrac, Cistercian abbey of Holy Mary of Valmagne, 13th century, gothic style, nave turned into a wine storehouse after the Revolution
    Smiling students using digital tablet in classroom — Stock Photo
    Smiling students using digital tablet in classroom
    Students during IT lesson at class — Stock Photo
    Students during IT lesson at class
    Human ovary structure — Stock Photo
    Human ovary structure
    Front view of a male Caucasian teacher standing, holding a tablet computer 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 standing, holding a tablet computer and talking to a multi-ethnic group of teenagers in a school high school classroom sitting at desks and listening
    Front view of a Caucasian teenage girl and boy embracing and smiling while the boy takes a selfie of them with a smartphone in their school grounds, another teenage couple sitting in the background — Stock Photo
    Front view of a Caucasian teenage girl and boy embracing and smiling while the boy takes a selfie of them with a smartphone in their school grounds, another teenage couple sitting in the background
    Side view of a Caucasian male field hockey coach interacting with a group of female Caucasian field hockey players, sitting in a changing room, showing them a game plan, writing on a whiteboard — 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, showing them a game plan, writing on a whiteboard
    Female science teacher and students in laboratory classroom — Stock Photo
    Female science teacher and students in laboratory classroom
    France, drawer with numerous compartments containing lead letters used for old printing — Stock Photo
    France, drawer with numerous compartments containing lead letters used for old printing
    Curious girl student holding molecule model in classroom — Stock Photo
    Curious girl student holding molecule model in classroom
    High school students and teacher clapping debate class — Stock Photo
    High school students and teacher clapping debate class
    Front view of a teenage Caucasian boy sitting a desk looking ahead and concentrating in a school classroom, with a row of teenage female classmates sitting at desks behind him — Stock Photo
    Front view of a teenage Caucasian boy sitting a desk looking ahead and concentrating in a school classroom, with a row of teenage female classmates sitting at desks behind him
    Eager, smiling students raising hands in science laboratory classroom — Stock Photo
    Eager, smiling students raising hands in science laboratory classroom
    Side view of a Caucasian teenage schoolboy sitting at a desk in class by a window using a smartphone and concentrating — Stock Photo
    Side view of a Caucasian teenage schoolboy sitting at a desk in class by a window using a smartphone and concentrating
    Smiling junior high girl student with braces — Stock Photo
    Smiling junior high girl student with braces
    Side view of a group of female Caucasian field hockey players, training before a game, working out on a field hockey pitch, doing exercises, stretching their legs, holding their feet behind their back 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 exercises, stretching their legs, holding their feet behind their back on a sunny day
    Junior high students leaving school building, descending steps — Stock Photo
    Junior high students leaving school building, descending steps
    Female science teacher and girl student writing at whiteboard in classroom — Stock Photo
    Female science teacher and girl student writing at whiteboard in classroom
    High angle mid section of musician teenage girl wearing a striped sweater sitting and playing a ukulele alone — Stock Photo
    High angle mid section of musician teenage girl wearing a striped sweater sitting and playing a ukulele alone