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    Teacher teaching students on whiteboard in classroom — Stock Photo
    Teacher teaching students on whiteboard in classroom
    Professor with muscular dystrophy working with students in a laboratory — Stock Photo
    Professor with muscular dystrophy working with students in a laboratory
    Community college students watching instructor leading lesson at projection screen in classroom — Stock Photo
    Community college students watching instructor leading lesson at projection screen in classroom
    Rural female teacher and happy chinese pupils in classroom — Stock Photo
    Rural female teacher and happy chinese pupils in classroom
    Rear view of a young African schoolgirl and two schoolboys jumping and playing with a ball in the playground at a township elementary school — Stock Photo
    Rear view of a young African schoolgirl and two schoolboys jumping and playing with a ball in the playground at a township elementary school
    Student leaving classroom — Stock Photo
    Student leaving 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
    Junior high students — Stock Photo
    Junior high students
    Happy rural chinese pupils smiling at camera outdoor, cropped shot — Stock Photo
    Happy rural chinese pupils smiling at camera outdoor, cropped shot
    Attentive university students studying in classroom — Stock Photo
    Attentive university students studying in classroom
    Male teacher teaching students in the class at school — Stock Photo
    Male teacher teaching students in the class at school
    Student examining electrical control system on furnace with professor in HVAC classroom one student in wheelchair — Stock Photo
    Student examining electrical control system on furnace with professor in HVAC classroom one student in wheelchair
    African american students smiling together — Stock Photo
    African american students smiling together
    Friends taking self portrait — Stock Photo
    Friends taking self portrait
    Front view of two Caucasian teenage boys sitting in front of a window playing a trombone and a French horn — Stock Photo
    Front view of two Caucasian teenage boys sitting in front of a window playing a trombone and a French horn
    Young students practicing chemistry experiment in lab — Stock Photo
    Young students practicing chemistry experiment in lab
    Junior high students at computers watching teacher at projection screen in classroom — Stock Photo
    Junior high students at computers watching teacher at projection screen in classroom
    African american girl studying while sitting on her desk in the class at school. school and education concept — Stock Photo
    African american girl studying while sitting on her desk in the class at school. school and education concept
    Girl cheering in forest and smiling to camera — Stock Photo
    Girl cheering in forest and smiling to camera
    High school teacher supervising students taking exam desks classroom — Stock Photo
    High school teacher supervising students taking exam desks classroom
    Students with Down Syndrome using stand mixer in baking class — Stock Photo
    Students with Down Syndrome using stand mixer in baking class
    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 and smiling — 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 and smiling
    Female teacher and students watching scientific experiment chemical reaction in laboratory classroom — Stock Photo
    Female teacher and students watching scientific experiment chemical reaction in laboratory classroom
    Student in wheelchair examining furnace ignitor in HVAC classroom — Stock Photo
    Student in wheelchair examining furnace ignitor in HVAC classroom
    High school teacher supervising students taking exam at desks — Stock Photo
    High school teacher supervising students taking exam at desks
    Young couple college students using cell phone and digital tablet at kitchen table — Stock Photo
    Young couple college students using cell phone and digital tablet at kitchen table
    Teacher teaching students — Stock Photo
    Teacher teaching students
    A Group Of Friends At The Classroom Corridor. — Stock Photo
    A Group Of Friends At The Classroom Corridor.
    Woman choosing book in library — Stock Photo
    Woman choosing book in library
    Portrait happy students with Down Syndrome baking in kitchen — Stock Photo
    Portrait happy students with Down Syndrome baking in kitchen
    Multiethnic friends reading book — Stock Photo
    Multiethnic friends reading book
    Young friends using smartphone at motor scooter — Stock Photo
    Young friends using smartphone at motor scooter
    Two female students playing clarinet and piano in a studio — Stock Photo
    Two female students playing clarinet and piano in a studio
    Portrait of two smiling university students standing in corridor — Stock Photo
    Portrait of two smiling university students standing in corridor
    College students studying at desk in library — Stock Photo
    College students studying at desk in library
    Junior high students hanging out at stairs — Stock Photo
    Junior high students hanging out at stairs
    Community college instructor guiding adult students using computers in classroom — Stock Photo
    Community college instructor guiding adult students using computers in classroom
    College students walking and talking in corridor — Stock Photo
    College students walking and talking in corridor
    Junior high school students pointing at globe in geography teacher hands — Stock Photo
    Junior high school students pointing at globe in geography teacher hands
    Student looking away while studying — Stock Photo
    Student looking away while studying
    Group of boys and girl in computer class working at monitors. — Stock Photo
    Group of boys and girl in computer class working at monitors.
    University students listening attentively at seminar — Stock Photo
    University students listening attentively at seminar
    African american students and teacher smiling outdoors — Stock Photo
    African american students and teacher smiling outdoors
    High angle view of students standing in locker room — Stock Photo
    High angle view of students standing in locker room
    Female scientist using microscope in laboratory — Stock Photo
    Female scientist using microscope in laboratory
    Smiling college students descending staircase — Stock Photo
    Smiling college students descending staircase
    Female and male doctors practicing cardiopulmonary resuscitation on infant training dummies. — Stock Photo
    Female and male doctors practicing cardiopulmonary resuscitation on infant training dummies.
    Girls looking at field — Stock Photo
    Girls looking at field
    Couple studying on the terrace of a bar in Barcelona — Stock Photo
    Couple studying on the terrace of a bar in Barcelona
    Male student sitting at desk using cell phone — Stock Photo
    Male student sitting at desk using cell phone
    Boy drawing bar graph — Stock Photo
    Boy drawing bar graph
    Chinese rural female teacher and pupils smiling at camera in the classroom — Stock Photo
    Chinese rural female teacher and pupils smiling at camera in the classroom
    Company of romantic couples having fun on city streets at night — Stock Photo
    Company of romantic couples having fun on city streets at night
    African american student smiling in class — Stock Photo
    African american student smiling in class
    Young friends reading book — Stock Photo
    Young friends reading book
    Man reading document with friend — Stock Photo
    Man reading document with friend
    Caucasian male teacher holding windmill model teaching boy and girl in environment class at school. school and education concept — Stock Photo
    Caucasian male teacher holding windmill model teaching boy and girl in environment class at school. school and education concept
    Female friends walking outside university — Stock Photo
    Female friends walking outside university
    Young man college student studying at laptop in kitchen — Stock Photo
    Young man college student studying at laptop in kitchen
    Caucasian boy and african american girl showing how to recycle plastic items to students at school. school and education concept — Stock Photo
    Caucasian boy and african american girl showing how to recycle plastic items to students at school. school and education concept