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    Female teacher teaching class — Stock Photo
    Female teacher teaching class
    University students listening attentively at seminar — Stock Photo
    University students listening attentively at seminar
    Young adults enjoying breakfast in apartment kitchen — Stock Photo
    Young adults enjoying breakfast in apartment kitchen
    University students studying together — Stock Photo
    University students studying together
    College students descending stairway together — Stock Photo
    College students descending stairway together
    African american students raising hands in class — Stock Photo
    African american students raising hands in class
    Senior Chinese couple with grandchildren on street — Stock Photo
    Senior Chinese couple with grandchildren on street
    College students studying in library at university — Stock Photo
    College students studying in library at university
    Girl students studying at computer in library — Stock Photo
    Girl students studying at computer in library
    Female and male doctors practicing cardiopulmonary resuscitation on infant training dummies. — Stock Photo
    Female and male doctors practicing cardiopulmonary resuscitation on infant training dummies.
    Student in wheelchair setting up generator experiment while student examines HVAC system — Stock Photo
    Student in wheelchair setting up generator experiment while student examines HVAC system
    High school teacher talking with students at table in classroom — Stock Photo
    High school teacher talking with students at table in classroom
    Female college student using microscope in science laboratory classroom — Stock Photo
    Female college student using microscope in science laboratory classroom
    Three beautiful women paying attention to their friend who reads them a book on the beach, blonde girl, brown hair girl and Asian girl with the sun behind her - Concept of vacation — Stock Photo
    Three beautiful women paying attention to their friend who reads them a book on the beach, blonde girl, brown hair girl and Asian girl with the sun behind her - Concept of vacation
    Female friends talking in locker room — Stock Photo
    Female friends talking in locker room
    Smiling female friends with laptop — Stock Photo
    Smiling female friends with laptop
    Young women friends sharing headphones listening to music with mp3 player — Stock Photo
    Young women friends sharing headphones listening to music with mp3 player
    Side view 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 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
    High school students listening to lecture in classroom — Stock Photo
    High school students listening to lecture in classroom
    Project team members working side by side — Stock Photo
    Project team members working side by side
    College students discussing homework in corridor — Stock Photo
    College students discussing homework in corridor
    Side view of college students studying at desk in classroom — Stock Photo
    Side view of college students studying at desk in classroom
    Portrait confident junior high school girl student doing homework in classroom — Stock Photo
    Portrait confident junior high school girl student doing homework in classroom
    Chef and students with Down Syndrome baking in restaurant kitchen — Stock Photo
    Chef and students with Down Syndrome baking in restaurant kitchen
    University students walking in corridor of university — Stock Photo
    University students walking in corridor of university
    Junior high girl students walking in library — Stock Photo
    Junior high girl students walking in library
    Students and teacher examining globe in classroom — Stock Photo
    Students and teacher examining globe in classroom
    Schoolkids looking at each other in school campus on a sunny day — Stock Photo
    Schoolkids looking at each other in school campus on a sunny day
    Portrait playful young female college students studying in cafe window — Stock Photo
    Portrait playful young female college students studying in cafe window
    Teenage boy experimenting on microscope in laboratory at university — Stock Photo
    Teenage boy experimenting on microscope in laboratory at university
    Chinese college students chatting in front of university building — Stock Photo
    Chinese college students chatting in front of university building
    College students studying in library at university — Stock Photo
    College students studying in library at university
    Young female college students studying in cafe — Stock Photo
    Young female college students studying in cafe
    Junior high students studying, talking — Stock Photo
    Junior high students studying, talking
    Smiling junior high school students listening in classroom lesson — Stock Photo
    Smiling junior high school students listening in classroom lesson
    College students ascending stairway together — Stock Photo
    College students ascending stairway together
    Chinese children painting in art class — Stock Photo
    Chinese children painting in art class
    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
    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
    Young man with female friend — Stock Photo
    Young man with female friend
    Teacher supervising high school students taking exam at desks — Stock Photo
    Teacher supervising high school students taking exam at desks
    Primary school students sitting at desks in rural primary school — Stock Photo
    Primary school students sitting at desks in rural primary school
    Teacher and students reaching for leaves on tree — Stock Photo
    Teacher and students reaching for leaves on tree
    Male teacher helping students assembling robotics in classroom — Stock Photo
    Male teacher helping students assembling robotics in classroom
    Girls smiling at camera — Stock Photo
    Girls smiling at camera
    Front view mid section of a young schoolgirl sitting at her desk and writing with a pencil in her notebook during a lesson in a township elementary school classroom, in the background her classmates are also writing in their books — Stock Photo
    Front view mid section of a young schoolgirl sitting at her desk and writing with a pencil in her notebook during a lesson in a township elementary school classroom, in the background her classmates are also writing in their books
    Female friends with hands on chins — Stock Photo
    Female friends with hands on chins
    Male and female students with books — Stock Photo
    Male and female students with books
    Students in class raising hands — Stock Photo
    Students in class raising hands
    Students clapping for male instructor in dance class studio — Stock Photo
    Students clapping for male instructor in dance class studio
    Chinese schoolchildren reading books at school yard — Stock Photo
    Chinese schoolchildren reading books at school yard
    Portrait close up of a Caucasian teenage boy with short dark hair and grey 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 dark hair and grey eyes standing in a school classroom smiling to camera, with classmates talking in the background
    Happy high school girl students studying in corridor — Stock Photo
    Happy high school girl students studying in corridor
    Side view 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 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
    Young asian college students studying together — Stock Photo
    Young asian college students studying together
    Happy junior high schoolgirl — Stock Photo
    Happy junior high schoolgirl
    Rural female teacher and happy chinese pupils in classroom — Stock Photo
    Rural female teacher and happy chinese pupils in classroom
    Teenage student with friends — Stock Photo
    Teenage student with friends
    Students and teacher examining globe in classroom — Stock Photo
    Students and teacher examining globe in classroom
    Junior high school girl student with hand raised in classroom — Stock Photo
    Junior high school girl student with hand raised in classroom