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    Friends reading book together — Stock Photo
    Friends reading book together
    Smiling teenage friends — Stock Photo
    Smiling teenage friends
    Chinese young adults sitting on lawn in autumnal park — Stock Photo
    Chinese young adults sitting on lawn in autumnal park
    Three students sitting in class — Stock Photo
    Three students sitting in class
    Man writing in diary — Stock Photo
    Man writing in diary
    Male student with friends — Stock Photo
    Male student with friends
    College students discussing homework in corridor — Stock Photo
    College students discussing homework in corridor
    Focused high school students taking exam — Stock Photo
    Focused high school students taking exam
    Chinese schoolchildren in school uniform leaning against fence — Stock Photo
    Chinese schoolchildren in school uniform leaning against fence
    Junior high students writing — Stock Photo
    Junior high students writing
    High school students talking in classroom — Stock Photo
    High school students talking in classroom
    University students studying together — Stock Photo
    University students studying together
    Portrait smiling, confident girl students researching at computer in library — Stock Photo
    Portrait smiling, confident girl students researching at computer in library
    Eacher teaching mathematics to children — Stock Photo
    Eacher teaching mathematics to children
    College students using computer in classroom — Stock Photo
    College students using computer in classroom
    High angle view of a diverse group of fashion students working on designs in a studio at fashion college — Stock Photo
    High angle view of a diverse group of fashion students working on designs in a studio at fashion college
    Boys writing on whiteboard — Stock Photo
    Boys writing on whiteboard
    Portrait of cheerful boy — Stock Photo
    Portrait of cheerful boy
    College students talking in corridor — Stock Photo
    College students talking in corridor
    College students using digital tablet walking in corridor — Stock Photo
    College students using digital tablet walking in corridor
    Two handsome teenage boys sitting on the wall repairing a skateboard — Stock Photo
    Two handsome teenage boys sitting on the wall repairing a skateboard
    Two young students are on a university campus. Multiethnic concept — Stock Photo
    Two young students are on a university campus. Multiethnic concept
    Schoolboy drawing bar graph — Stock Photo
    Schoolboy drawing bar graph
    Young friends college students studying with book and digital tablet at table — Stock Photo
    Young friends college students studying with book and digital tablet at table
    Thoughtful male student with classmates at desk in classroom — Stock Photo
    Thoughtful male student with classmates at desk in classroom
    College students studying at computer in computer lab — Stock Photo
    College students studying at computer in computer lab
    High school teacher supervising students taking exam at desks — Stock Photo
    High school teacher supervising students taking exam at desks
    Focused students listening to professor at seminar in classroom — Stock Photo
    Focused students listening to professor at seminar in classroom
    Dental anatomy student's hands working plastic human head — Stock Photo
    Dental anatomy student's hands working plastic human head
    Side view close up of a young African schoolboy using a tablet computer as he walks in the playground at a township elementary school classroom. In the background two of his classmates can be seen watching him — Stock Photo
    Side view close up of a young African schoolboy using a tablet computer as he walks in the playground at a township elementary school classroom. In the background two of his classmates can be seen watching him
    Attentive university students doing a experiment in laboratory — Stock Photo
    Attentive university students doing a experiment 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
    Teacher assisting university students in their studies in classroom — Stock Photo
    Teacher assisting university students in their studies in classroom
    University professor with Muscular Dystrophy teaching students in a classroom — Stock Photo
    University professor with Muscular Dystrophy teaching students in a classroom
    Rural teacher and pupils in outdoor learning — Stock Photo
    Rural teacher and pupils in outdoor learning
    Front view of an male Caucasian teacher standing and talking to a Caucasian male student in a multi-ethnic class of teenagers in a high school classroom sitting at desks and working — Stock Photo
    Front view of an male Caucasian teacher standing and talking to a Caucasian male student in a multi-ethnic class of teenagers in a high school classroom sitting at desks and working
    College students taking test at desks in classroom — Stock Photo
    College students taking test at desks in classroom
    Front view close up of a middle aged African female school teacher helping a young African schoolgirl sitting at her desk using a laptop computer during a lesson. — Stock Photo
    Front view close up of a middle aged African female school teacher helping a young African schoolgirl sitting at her desk using a laptop computer during a lesson.
    Portrait smiling female college students walking in corridor — Stock Photo
    Portrait smiling female college students walking in corridor
    University students doing experiment on microscope in laboratory at college — Stock Photo
    University students doing experiment on microscope in laboratory at college
    Teacher and students playing at interactive exhibit in science center — Stock Photo
    Teacher and students playing at interactive exhibit in science center
    Boys and girls, working in class — Stock Photo
    Boys and girls, working in class
    Girl showing tablet computer to friend while studying at desk in classroom — Stock Photo
    Girl showing tablet computer to friend while studying at desk in classroom
    Young university students — Stock Photo
    Young university students
    Students reading text message on phone — Stock Photo
    Students reading text message on phone
    Girl students assembling computer in classroom — Stock Photo
    Girl students assembling computer in classroom
    Boy pointing at chart — Stock Photo
    Boy pointing at chart
    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
    Junior high boy students using smart phone in corridor — Stock Photo
    Junior high boy students using smart phone in corridor
    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
    Students and teacher smiling outdoors — Stock Photo
    Students and teacher smiling outdoors
    Chinese student studying in cafe with digital tablet — Stock Photo
    Chinese student studying in cafe with digital tablet
    Young woman reading book — Stock Photo
    Young woman reading book
    Caucasian female chef passing a leek to Caucasian male chef, with other chefs cooking in the background. Cookery class at a restaurant kitchen. — Stock Photo
    Caucasian female chef passing a leek to Caucasian male chef, with other chefs cooking in the background. Cookery class at a restaurant kitchen.
    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
    Student in graduation gown cycling along passageway — Stock Photo
    Student in graduation gown cycling along passageway
    Young female college students studying at cafe window — Stock Photo
    Young female college students studying at cafe window
    Instructor using demo board to explain HVAC control system operation one student in wheelchair — Stock Photo
    Instructor using demo board to explain HVAC control system operation one student in wheelchair
    Young asian college student using smartphone — Stock Photo
    Young asian college student using smartphone
    Chinese man and woman using laptop in cafe — Stock Photo
    Chinese man and woman using laptop in cafe