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    Portrait smiling young man in denim shirt and plaid pants — Stock Photo
    Portrait smiling young man in denim shirt and plaid pants
    Male teacher leading lesson at projection screen in classroom — Stock Photo
    Male teacher leading lesson at projection screen in classroom
    Male student looking away while sitting with female classmates in classroom — Stock Photo
    Male student looking away while sitting with female classmates in classroom
    High school students talking at table in debate class — Stock Photo
    High school students talking at table in debate class
    Student holding painted fish in classroom — Stock Photo
    Student holding painted fish in classroom
    Yellow school buses parked diagonally in parking lot in Seattle, Washington, USA — Stock Photo
    Yellow school buses parked diagonally in parking lot in Seattle, Washington, USA
    Mature female professor teaching students — Stock Photo
    Mature female professor teaching students
    A mother and daughter smile while looking at a tablet together — Stock Photo
    A mother and daughter smile while looking at a tablet together
    Portrait confident young woman wearing denim jacket and jeans — Stock Photo
    Portrait confident young woman wearing denim jacket and jeans
    Teenage girls studying on bed — Stock Photo
    Teenage girls studying on bed
    Portrait of happy school students — Stock Photo
    Portrait of happy school students
    University students studying in library — Stock Photo
    University students studying in library
    Junior high students walking in library — Stock Photo
    Junior high students walking in library
    Teenagers playing pool indoors — Stock Photo
    Teenagers playing pool indoors
    Front view mid section of musician teenage boy with yellow t-shirt sitting and playing an acoustic guitar in a high school — Stock Photo
    Front view mid section of musician teenage boy with yellow t-shirt sitting and playing an acoustic guitar in a high school
    Mature teacher explaining students — Stock Photo
    Mature teacher explaining students
    Students moving down steps — Stock Photo
    Students moving down steps
    Junior high schoolgirl making bar graph — Stock Photo
    Junior high schoolgirl making bar graph
    Junior high girl students entering library — Stock Photo
    Junior high girl students entering library
    Female teenage student holding books on stairs — Stock Photo
    Female teenage student holding books on stairs
    Young male college students studying in cafe — Stock Photo
    Young male college students studying in cafe
    Students examining DNA model in classroom laboratory — Stock Photo
    Students examining DNA model in classroom laboratory
    Two Boys Stand on a Cliff over Dark Water Below — Stock Photo
    Two Boys Stand on a Cliff over Dark Water Below
    Portrait smiling woman wearing medical boot in wheelchair in corridor — Stock Photo
    Portrait smiling woman wearing medical boot in wheelchair in corridor
    Junior high school students doing homework at desks in classroom — Stock Photo
    Junior high school students doing homework at desks in classroom
    Portrait of a teenage Caucasian male field hockey player with red hair, wearing a red team strip, standing on a hockey pitch, with his teammates in the background on a sunny day — Stock Photo
    Portrait of a teenage Caucasian male field hockey player with red hair, wearing a red team strip, standing on a hockey pitch, with his teammates in the background on a sunny day
    Smiling male teacher leading lesson in classroom — Stock Photo
    Smiling male teacher leading lesson in classroom
    Portrait smiling high school girl in stairway — Stock Photo
    Portrait smiling high school girl in stairway
    Teenagers playing pool in community center — Stock Photo
    Teenagers playing pool in community center
    Boy writing on paper at desk — Stock Photo
    Boy writing on paper at desk
    Portrait confident young female college student in corridor — Stock Photo
    Portrait confident young female college student in corridor
    Wide view of young student getting virtual high five from teache — Stock Photo
    Wide view of young student getting virtual high five from teache
    High angle front view of a Caucasian teenage boy sitting at a desk in a school classroom looking away, thinking, classmates sitting at desks in the background — Stock Photo
    High angle front view of a Caucasian teenage boy sitting at a desk in a school classroom looking away, thinking, classmates sitting at desks in the background
    Students examining liquid in test tube, conducting scientific experiment in laboratory classroom — Stock Photo
    Students examining liquid in test tube, conducting scientific experiment in laboratory classroom
    Girl students using microscope, conducting scientific experiment in laboratory classroom — Stock Photo
    Girl students using microscope, conducting scientific experiment in laboratory classroom
    Portrait smiling, confident male teacher in classroom — Stock Photo
    Portrait smiling, confident male teacher in classroom
    Students conducting scientific experiment, pouring liquid in beaker in laboratory classroom — Stock Photo
    Students conducting scientific experiment, pouring liquid in beaker in laboratory classroom
    Students and teacher drawing in classroom — Stock Photo
    Students and teacher drawing in classroom
    View from above high school teacher supervising students taking exam — Stock Photo
    View from above high school teacher supervising students taking exam
    Smiling male science teacher helping girl students conducting scientific experiment at microscope in laboratory — Stock Photo
    Smiling male science teacher helping girl students conducting scientific experiment at microscope in laboratory
    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
    Portrait smiling, confident male instructor at laptop preparing in classroom — Stock Photo
    Portrait smiling, confident male instructor at laptop preparing in classroom
    Male instructor leading dance class in studio — Stock Photo
    Male instructor leading dance class in studio
    Side view of a group of female Caucasian field hockey players training before a game, standing on a hockey pitch, resting, on a sunny day — Stock Photo
    Side view of a group of female Caucasian field hockey players training before a game, standing on a hockey pitch, resting, on a sunny day
    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
    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
    Junior high school students pointing at globe in geography teacher hands — Stock Photo
    Junior high school students pointing at globe in geography teacher hands
    Front view of a multi-ethnic team of teenage male field hockey players preparing before a game, standing on the pitch in a row, wearing their team strip, holding their hockey sticks, looking to camera on a sunny day — Stock Photo
    Front view of a multi-ethnic team of teenage male field hockey players preparing before a game, standing on the pitch in a row, wearing their team strip, holding their hockey sticks, looking to camera on a sunny day
    View from above kids playing at interactive exhibit in science center — Stock Photo
    View from above kids playing at interactive exhibit in science center
    Side view of a Caucasian male field hockey goalkeeper, standing in the goal holding a hokey stick, and turning to look to camera, during a field hockey game on a sunny day, seen through the goal net — Stock Photo
    Side view of a Caucasian male field hockey goalkeeper, standing in the goal holding a hokey stick, and turning to look to camera, during a field hockey game on a sunny day, seen through the goal net
    Smiling junior high school students listening in classroom lesson — Stock Photo
    Smiling junior high school students listening in classroom lesson
    Student with laptop in classroom — Stock Photo
    Student with laptop in classroom