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    Girl enjoying a refreshing swim in the pool a sunny summer day — Stock Photo
    Girl enjoying a refreshing swim in the pool a sunny summer day
    Audience with smart phone flashlights listening to speaker with microphone — Stock Photo
    Audience with smart phone flashlights listening to speaker with microphone
    Surprised students conducting scientific experiment, watching chemical reaction in classroom laboratory — Stock Photo
    Surprised students conducting scientific experiment, watching chemical reaction in classroom laboratory
    Male science teacher and students laughing, conducting scientific experiment in laboratory classroom — Stock Photo
    Male science teacher and students laughing, conducting scientific experiment in laboratory classroom
    People working together in office — Stock Photo
    People working together in office
    High school teacher supervising students taking exam at desks — Stock Photo
    High school teacher supervising students taking exam at desks
    Portrait confident female high school teacher at projection screen in classroom — Stock Photo
    Portrait confident female high school teacher at projection screen in classroom
    Portrait smiling, confident female community college student reading in classroom — Stock Photo
    Portrait smiling, confident female community college student reading in classroom
    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
    High school students with hands raised in classroom — Stock Photo
    High school students with hands raised in classroom
    Junior high students hanging out, talking on stairs — Stock Photo
    Junior high students hanging out, talking on stairs
    High school students clapping for teacher in debate class — Stock Photo
    High school students clapping for teacher in debate class
    Female community college instructor leading lesson at laptop and projection screen — Stock Photo
    Female community college instructor leading lesson at laptop and projection screen
    Female fashion designers pinning dress on dressmakers model in studio — Stock Photo
    Female fashion designers pinning dress on dressmakers model in studio
    Male activist in protective mask and gloves explaining task to group of kids collecting garbage during environmental campaign in summer forest — Stock Photo
    Male activist in protective mask and gloves explaining task to group of kids collecting garbage during environmental campaign in summer forest
    Young boy video conferencing with class on computer — Stock Photo
    Young boy video conferencing with class on computer
    Happy, smiling high school girl student talking with classmate in classroom — Stock Photo
    Happy, smiling high school girl student talking with classmate in classroom
    Smiling college students descending staircase — Stock Photo
    Smiling college students descending staircase
    Female artists working in art studio — Stock Photo
    Female artists working in art studio
    Small blonde boy learning how to peel potatoes with peeler sitti — Stock Photo
    Small blonde boy learning how to peel potatoes with peeler sitti
    Chairs arranged in circle in community center classroom — Stock Photo
    Chairs arranged in circle in community center classroom
    Portrait confident students holding molecular structures in laboratory classroom — Stock Photo
    Portrait confident students holding molecular structures in laboratory classroom
    Science teacher helping girl student at microscope in classroom laboratory — Stock Photo
    Science teacher helping girl student at microscope in classroom laboratory
    Male junior high teacher leading lesson at projection screen in classroom — Stock Photo
    Male junior high teacher leading lesson at projection screen in classroom
    Female college students using computers in computer lab — Stock Photo
    Female college students using computers in computer lab
    Community college students using digital tablet in classroom — Stock Photo
    Community college students using digital tablet in classroom
    Smiling young women with Down Syndrome grating cheese in cafe kitchen — Stock Photo
    Smiling young women with Down Syndrome grating cheese in cafe kitchen
    Students watching chemical reaction, conducting scientific experiment in laboratory classroom — Stock Photo
    Students watching chemical reaction, conducting scientific experiment in laboratory classroom
    Male junior high teacher leading lesson at projection screen in classroom — Stock Photo
    Male junior high teacher leading lesson at projection screen in classroom
    Little boy sitting inside a motorhome while scratching his eye — Stock Photo
    Little boy sitting inside a motorhome while scratching his eye
    Girl sitting in her bedroom doing her homework — Stock Photo
    Girl sitting in her bedroom doing her homework
    Junior high girl students walking in corridor — Stock Photo
    Junior high girl students walking in corridor
    Thoughtful high school boy taking exam at desk in classroom — Stock Photo
    Thoughtful high school boy taking exam at desk in classroom
    Community college instructor and student talking in computer lab classroom — Stock Photo
    Community college instructor and student talking in computer lab classroom
    Company of diverse students doing homework together while using netbook in city street — Stock Photo
    Company of diverse students doing homework together while using netbook in city street
    Female artist with 3D wood art in art studio — Stock Photo
    Female artist with 3D wood art in art studio
    Students with Down Syndrome looking at recipes in kitchen — Stock Photo
    Students with Down Syndrome looking at recipes in kitchen
    Portrait confident female college student with binder in classroom — Stock Photo
    Portrait confident female college student with binder in classroom
    Smiling, confident female community college instructor in computer lab classroom — Stock Photo
    Smiling, confident female community college instructor in computer lab classroom
    Community college instructor talking with students in classroom — Stock Photo
    Community college instructor talking with students in classroom
    Cute Little Girl is Reading a Book in Tent — Stock Photo
    Cute Little Girl is Reading a Book in Tent
    Curious girl student examining molecular structure — Stock Photo
    Curious girl student examining molecular structure
    College film students filming under urban bridge — Stock Photo
    College film students filming under urban bridge
    Portrait confident young male college student in library — Stock Photo
    Portrait confident young male college student in library
    Cheerful male with long hair sitting on bench in garden and reading interesting story in book during weekend — Stock Photo
    Cheerful male with long hair sitting on bench in garden and reading interesting story in book during weekend
    Business people using smart phone in conference audience — Stock Photo
    Business people using smart phone in conference audience
    Portrait smiling, confident female community college student in classroom — Stock Photo
    Portrait smiling, confident female community college student in classroom
    Close up female fashion designer pinning butterfly fabric on dressmakers model — Stock Photo
    Close up female fashion designer pinning butterfly fabric on dressmakers model
    Happy young woman with Down Syndrome in baking class — Stock Photo
    Happy young woman with Down Syndrome in baking class
    Journalism students filming in classroom — Stock Photo
    Journalism students filming in classroom
    Smiling college students walking in corridor — Stock Photo
    Smiling college students walking in corridor
    Young beautiful woman reading book in living room — Stock Photo
    Young beautiful woman reading book in living room
    Grandmother & Child on Tablet — Stock Photo
    Grandmother & Child on Tablet
    Junior high boy students walking in corridor — Stock Photo
    Junior high boy students walking in corridor
    Lovely boy sat beside the table — Stock Photo
    Lovely boy sat beside the table
    Community college instructor and students at computers in computer lab classroom — Stock Photo
    Community college instructor and students at computers in computer lab classroom
    Smiling speakers waving on stage — Stock Photo
    Smiling speakers waving on stage
    Low angle of ethnic teenage boy with Down syndrome reading interesting book while sitting looking at camera on sofa in living room at home — Stock Photo
    Low angle of ethnic teenage boy with Down syndrome reading interesting book while sitting looking at camera on sofa in living room at home
    Community college instructor helping students in classroom — Stock Photo
    Community college instructor helping students in classroom
    High school girl student taking exam at desk in classroom — Stock Photo
    High school girl student taking exam at desk in classroom