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    Teacher looking at boy writing on whiteboard in classroom — Stock Photo
    Teacher looking at boy writing on whiteboard in classroom
    Mothers watching sons coloring in kitchen — Stock Photo
    Mothers watching sons coloring in kitchen
    Woman sitting on a sofa, reading a book. — Stock Photo
    Woman sitting on a sofa, reading a book.
    Young asian business woman working at home — Stock Photo
    Young asian business woman working at home
    Friends enjoying cooking class in kitchen — Stock Photo
    Friends enjoying cooking class in kitchen
    Community college instructor helping student at computer in classroom — Stock Photo
    Community college instructor helping student at computer in classroom
    Portrait smiling woman wearing medical boot in wheelchair in corridor — Stock Photo
    Portrait smiling woman wearing medical boot in wheelchair in corridor
    Young female rural teacher reading book to pupils in outdoor learning — Stock Photo
    Young female rural teacher reading book to pupils in outdoor learning
    Audience with smart phones videoing conference — Stock Photo
    Audience with smart phones videoing conference
    Portrait confident ambitious young male college student in library — Stock Photo
    Portrait confident ambitious young male college student in library
    Young attractive elegant woman in eyeglasses with book and sitting on bench in city garden and looking at camera — Stock Photo
    Young attractive elegant woman in eyeglasses with book and sitting on bench in city garden and looking at camera
    Happy asian family together playing game — Stock Photo
    Happy asian family together playing game
    Mother holding hands with son on ledge — Stock Photo
    Mother holding hands with son on ledge
    Grandfather and grandson over chessboard — Stock Photo
    Grandfather and grandson over chessboard
    Female speaker in hijab on stage talking to conference audience — Stock Photo
    Female speaker in hijab on stage talking to conference audience
    College students using laptop in cafeteria — Stock Photo
    College students using laptop in cafeteria
    Female teacher and students conducting scientific experiment in laboratory classroom — Stock Photo
    Female teacher and students conducting scientific experiment in laboratory classroom
    Young female college student taking a break from studying, texting with smart phone — Stock Photo
    Young female college student taking a break from studying, texting with smart phone
    Students examining condenser coil on refrigeration unit in HVAC classroom — Stock Photo
    Students examining condenser coil on refrigeration unit in HVAC classroom
    Smart concentrated man with backpack studying writing on notepad while sitting in park grass with crossed legs in sunny day — Stock Photo
    Smart concentrated man with backpack studying writing on notepad while sitting in park grass with crossed legs in sunny day
    Happy young woman with Down Syndrome baking in kitchen — Stock Photo
    Happy young woman with Down Syndrome baking in kitchen
    Attentive college student reading a book in library — Stock Photo
    Attentive college student reading a book in library
    Physical therapist performing foot pressure scan for child. — Stock Photo
    Physical therapist performing foot pressure scan for child.
    Community college instructor helping mature student in classroom — Stock Photo
    Community college instructor helping mature student in classroom
    Pensive female entrepreneur sitting on bench and leaning on hand while reading book in city — Stock Photo
    Pensive female entrepreneur sitting on bench and leaning on hand while reading book in city
    Science professor and college students using microscopes in science laboratory classroom — Stock Photo
    Science professor and college students using microscopes in science laboratory classroom
    Man with coffee cup and bicycle on city street — Stock Photo
    Man with coffee cup and bicycle on city street
    Male teacher and boy student using microscope, conducting scientific experiment in laboratory classroom — Stock Photo
    Male teacher and boy student using microscope, conducting scientific experiment in laboratory classroom
    Happy mature female teacher sitting at school desk — Stock Photo
    Happy mature female teacher sitting at school desk
    Multi ethnic group of conservation volunteers cleaning up river in the countryside, picking up rubbish. Ecology and social responsibility in rural environment. — Stock Photo
    Multi ethnic group of conservation volunteers cleaning up river in the countryside, picking up rubbish. Ecology and social responsibility in rural environment.
    Happy young African American female student in casual outfit lying on comfortable bed and reading book at home — Stock Photo
    Happy young African American female student in casual outfit lying on comfortable bed and reading book at home
    A Chinese Woman Looking Stressed Up Over Work. — Stock Photo
    A Chinese Woman Looking Stressed Up Over Work.
    Chef teaching students with Down Syndrome how to knead dough — Stock Photo
    Chef teaching students with Down Syndrome how to knead dough
    College students studying and talking at library table — Stock Photo
    College students studying and talking at library table
    Chef and students with Down Syndrome using digital tablet in kitchen — Stock Photo
    Chef and students with Down Syndrome using digital tablet in kitchen
    Playful, active senior couple dancing — Stock Photo
    Playful, active senior couple dancing
    Female freelancer using laptop in courtyard — Stock Photo
    Female freelancer using laptop in courtyard
    Chinese man in headphones using laptop in cafe — Stock Photo
    Chinese man in headphones using laptop in cafe
    Worried college student sitting in campus — Stock Photo
    Worried college student sitting in campus
    Smiling chef teacher and students in cooking class kitchen — Stock Photo
    Smiling chef teacher and students in cooking class kitchen
    Portrait of happy female Caucasian female conservation volunteer with rubbish bag cleaning up forest in the countryside, smiling to camera. Ecology and social responsibility in rural environment. — Stock Photo
    Portrait of happy female Caucasian female conservation volunteer with rubbish bag cleaning up forest in the countryside, smiling to camera. Ecology and social responsibility in rural environment.
    Carpentry teacher explaining blueprints to students in workshop — Stock Photo
    Carpentry teacher explaining blueprints to students in workshop
    Young man studying in library — Stock Photo
    Young man studying in library
    Mother helping daughter with homework — Stock Photo
    Mother helping daughter with homework
    Portrait of college students with arms crossed standing in lab — Stock Photo
    Portrait of college students with arms crossed standing in lab
    Beautiful woman holding book in library — Stock Photo
    Beautiful woman holding book in library
    Woman with microphone asking question in audience at conference — Stock Photo
    Woman with microphone asking question in audience at conference
    Caucasian man in kitchen sitting at table using laptop and writing notes. technology and communication, flexible working from home. — Stock Photo
    Caucasian man in kitchen sitting at table using laptop and writing notes. technology and communication, flexible working from home.
    Attentive businesswoman taking in notes in conference audience — Stock Photo
    Attentive businesswoman taking in notes in conference audience
    Female professor and college students using computer in computer lab — Stock Photo
    Female professor and college students using computer in computer lab
    Portrait smiling, confident teenage boy — Stock Photo
    Portrait smiling, confident teenage boy
    Portrait confident, smiling young woman — Stock Photo
    Portrait confident, smiling young woman
    Young female college student studying in window — Stock Photo
    Young female college student studying in window
    Teenage female student using digital tablet in desk in classroom — Stock Photo
    Teenage female student using digital tablet in desk in classroom
    Cropped view of hands of man writing in book with female classmate in background — Stock Photo
    Cropped view of hands of man writing in book with female classmate in background
    High angle view of university students studying at desk in classroom — Stock Photo
    High angle view of university students studying at desk in classroom
    Portrait of happy Caucasian male conservation volunteer cleaning up forest in the countryside, holding rubbish bag, smiling to camera. Ecology and social responsibility in rural environment. — Stock Photo
    Portrait of happy Caucasian male conservation volunteer cleaning up forest in the countryside, holding rubbish bag, smiling to camera. Ecology and social responsibility in rural environment.
    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
    Graduate smiles as he walks into graduation — Stock Photo
    Graduate smiles as he walks into graduation
    Young female rural teacher reading book to pupils in outdoor learning — Stock Photo
    Young female rural teacher reading book to pupils in outdoor learning