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    Side view of a Caucasian teenage male high school student and a Caucasian male teacher standing on the stage in an empty school theatre preparing before a performance, holding scripts and practicing together, backlit by spotlights — Stock Photo
    Side view of a Caucasian teenage male high school student and a Caucasian male teacher standing on the stage in an empty school theatre preparing before a performance, holding scripts and practicing together, backlit by spotlights
    Side view close up of multi-ethnic group of smiling high school teenagers in a school classroom sitting at desks, all raising their hands to answer a question — Stock Photo
    Side view close up of multi-ethnic group of smiling high school teenagers in a school classroom sitting at desks, all raising their hands to answer a question
    Female college students studying at desk in classroom — Stock Photo
    Female college students studying at desk in classroom
    Male high school teacher leading lesson at projection screen in classroom — Stock Photo
    Male high school teacher leading lesson at projection screen in classroom
    Junior high students using computers in computer lab — Stock Photo
    Junior high students using computers in computer lab
    Bridal high-heeled shoes with flowers — Stock Photo
    Bridal high-heeled shoes with flowers
    Male teacher teaching students in the classroom at school — Stock Photo
    Male teacher teaching students in the classroom at school
    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
    Female university student using digital tablet while studying at desk in classroom — Stock Photo
    Female university student using digital tablet while studying at desk 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.
    Mid section of teenage girl practicing at desk in classroom — Stock Photo
    Mid section of teenage girl practicing at desk in classroom
    Side view of a multi-ethnic group of teenage male and female musicians sitting in a classroom talking during a break in their school band practice — Stock Photo
    Side view of a multi-ethnic group of teenage male and female musicians sitting in a classroom talking during a break in their school band practice
    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 playing with a ball 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 playing with a ball in the background on a sunny day
    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 female field hockey player, during a field hockey game, running with a ball, holding a hockey stick, with her teammates and opponents in the background, on a sunny day — Stock Photo
    Side view of a Caucasian female field hockey player, during a field hockey game, running with a ball, holding a hockey stick, with her teammates and opponents in the background, on a sunny day
    Side view mid section of a Caucasian female field hockey player, training before a game, working out on a hockey pitch, exercising, with two her teammates and a coach, on a sunny day — Stock Photo
    Side view mid section of a Caucasian female field hockey player, training before a game, working out on a hockey pitch, exercising, with two her teammates and a coach, on a sunny day
    Junior high students in library — Stock Photo
    Junior high students in library
    Junior high school students using virtual reality simulators in classroom — Stock Photo
    Junior high school students using virtual reality simulators in classroom
    France, Paris. Vincennes. Bois de Vincennes. La Ferme de Paris. Organic agriculture and farming educational farm. — Stock Photo
    France, Paris. Vincennes. Bois de Vincennes. La Ferme de Paris. Organic agriculture and farming educational farm.
    Female students studying at desk in classroom — Stock Photo
    Female students studying at desk in 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
    Young male college student practicing experiment while standing in lab — Stock Photo
    Young male college student practicing experiment while standing in lab
    Smiling boy student assembling DNA model in classroom — Stock Photo
    Smiling boy student assembling DNA model in classroom
    Rear view of a Caucasian male field hockey coach interacting with a group of female Caucasian field hockey players, sitting in a changing room — Stock Photo
    Rear view of a Caucasian male field hockey coach interacting with a group of female Caucasian field hockey players, sitting in a changing room
    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
    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
    Junior high students using computer in computer lab — Stock Photo
    Junior high students using computer in computer lab
    Schoolkids standing in school campus on a sunny day — Stock Photo
    Schoolkids standing in school campus on a sunny day
    France, Lot et Garonne, aerial view of Lake Buydron near Villefranche du Queyran — Stock Photo
    France, Lot et Garonne, aerial view of Lake Buydron near Villefranche du Queyran
    Front view of a multi-ethnic group of teenage male field hockey players, training before a game, working out on a field hockey pitch, running on a sunny day — Stock Photo
    Front view of a multi-ethnic group of teenage male field hockey players, training before a game, working out on a field hockey pitch, running on a sunny day
    Male teacher and girl students conducting scientific experiment at microscope and laptop in laboratory classroom — Stock Photo
    Male teacher and girl students conducting scientific experiment at microscope and laptop in laboratory classroom
    Smiling male teacher leading lesson in classroom — Stock Photo
    Smiling male teacher leading lesson in classroom
    Female teacher helping girl students researching at laptop at library table — Stock Photo
    Female teacher helping girl students researching at laptop at library table
    Schoolgirl writing on chalkboard in classroom at school — Stock Photo
    Schoolgirl writing on chalkboard in classroom at school
    Male teacher and students watching chemical reaction, conducting scientific experiment in laboratory classroom — Stock Photo
    Male teacher and students watching chemical reaction, conducting scientific experiment in laboratory classroom
    High school students and teacher clapping for student in debate class — Stock Photo
    High school students and teacher clapping for student in debate class
    High angle view of female student studying at desk in classroom — Stock Photo
    High angle view of female student studying at desk in classroom
    Side view of a Caucasian teenage girl in an empty high school theatre preparing before a performance, standing on the stage, holding a script and practicing her part — Stock Photo
    Side view of a Caucasian teenage girl in an empty high school theatre preparing before a performance, standing on the stage, holding a script and practicing her part
    Girl students examining liquid in beaker, conducting scientific experiment in laboratory classroom — Stock Photo
    Girl students examining liquid in beaker, conducting scientific experiment in laboratory classroom
    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
    Student using laptop in the classroom at school — Stock Photo
    Student using laptop in the classroom at school
    High school girls talking on stair landing — Stock Photo
    High school girls talking on stair landing
    Surprised students conducting exploding foam scientific experiment in classroom laboratory — Stock Photo
    Surprised students conducting exploding foam scientific experiment in classroom laboratory
    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 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
    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 female student playing acoustic guitar — Stock Photo
    Smiling female student playing acoustic guitar
    Young college students discussing while standing in library — Stock Photo
    Young college students discussing while standing in library
    High school students with hands raised in debate class — Stock Photo
    High school students with hands raised in debate class
    Focused, curious girl programming and assembling robotics at laptop in classroom — Stock Photo
    Focused, curious girl programming and assembling robotics at laptop in classroom
    Male teacher leading lesson at projection screen in classroom — Stock Photo
    Male teacher leading lesson at projection screen in classroom
    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
    Rear view of a Caucasian female field hockey goalkeeper, during a field hockey game, standing in a goal, preparing to defend a penalty kick, with her teammates and opponents in the background, on a sunny day — Stock Photo
    Rear view of a Caucasian female field hockey goalkeeper, during a field hockey game, standing in a goal, preparing to defend a penalty kick, with her teammates and opponents in the background, on a sunny day
    Portrait enthusiastic junior high girl students waving on steps — Stock Photo
    Portrait enthusiastic junior high girl students waving on steps
    Portrait enthusiastic junior high students and teachers cheering with arms raised — Stock Photo
    Portrait enthusiastic junior high students and teachers cheering with arms raised
    Young students practicing chemistry experiment in lab — Stock Photo
    Young students practicing chemistry experiment in lab
    High school students talking at table in debate class — Stock Photo
    High school students talking at table in debate class
    Side view of young female student using microscope in lab — Stock Photo
    Side view of young female student using microscope in lab
    Male teacher helping junior high school students at desk in classroom — Stock Photo
    Male teacher helping junior high school students at desk in classroom
    College students practicing chemistry experiment at desk in lab — Stock Photo
    College students practicing chemistry experiment at desk in lab