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    Portrait of smiling girl with arms crossed standing in front of blackboard in classroom — Stock Photo
    Portrait of smiling girl with arms crossed standing in front of blackboard in classroom
    A teenage girl using pen and paper making notes, looking at a smart phone, writing a diary or doing homework. — Stock Photo
    A teenage girl using pen and paper making notes, looking at a smart phone, writing a diary or doing homework.
    African-American father and tween daughter laugh looking at laptop — Stock Photo
    African-American father and tween daughter laugh looking at laptop
    Child running in water at New Zealand beach on cloudy afternoon — Stock Photo
    Child running in water at New Zealand beach on cloudy afternoon
    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
    Smiling boy student assembling DNA model in classroom — Stock Photo
    Smiling boy student assembling DNA model in classroom
    Pre-adolescent boy working in computer laboratory with rows of computer monitors. — Stock Photo
    Pre-adolescent boy working in computer laboratory with rows of computer monitors.
    Portrait of confident schoolboy — Stock Photo
    Portrait of confident schoolboy
    Close-up portrait of adorable little boy laughing with arms raised — Stock Photo
    Close-up portrait of adorable little boy laughing with arms raised
    Laughing Teen Boy Stands in Humorously Small House, Looks Out Window — Stock Photo
    Laughing Teen Boy Stands in Humorously Small House, Looks Out Window
    Student writing formula and equations — Stock Photo
    Student writing formula and equations
    Students on a science lesson — Stock Photo
    Students on a science lesson
    Students watching chemical reaction, conducting scientific experiment in laboratory classroom — Stock Photo
    Students watching chemical reaction, conducting scientific experiment in laboratory classroom
    Girl looking at books — Stock Photo
    Girl looking at books
    Curious boy examining molecule model in laboratory classroom — Stock Photo
    Curious boy examining molecule model in laboratory classroom
    Focused students using computer in dark classroom — Stock Photo
    Focused students using computer in dark classroom
    Rear View of Teen Boy Playing Gaming Computer on a Messy Desk — Stock Photo
    Rear View of Teen Boy Playing Gaming Computer on a Messy Desk
    Students conducting scientific experiment in laboratory classroom — Stock Photo
    Students conducting scientific experiment in laboratory classroom
    Boy students examining liquid in test tube, conducting scientific experiment in laboratory classroom — Stock Photo
    Boy students examining liquid in test tube, conducting scientific experiment in laboratory classroom
    Students smiling in a school — Stock Photo
    Students smiling in a school
    Female teacher and students conducting scientific experiment in laboratory classroom — Stock Photo
    Female teacher and students conducting scientific experiment in laboratory classroom
    School aged boy dressed as Dracula posing in costume on Halloween — Stock Photo
    School aged boy dressed as Dracula posing in costume on Halloween
    Students in a computer class — Stock Photo
    Students in a computer class
    Portrait smiling, confident girl student solving physics equations at whiteboard in classroom — Stock Photo
    Portrait smiling, confident girl student solving physics equations at whiteboard in classroom
    Boy sitting at a desk — Stock Photo
    Boy sitting at a desk
    Girl students using microscope, conducting scientific experiment in laboratory classroom — Stock Photo
    Girl students using microscope, conducting scientific experiment in laboratory classroom
    Tween girl reaching into freezer drawer in dark kitchen — Stock Photo
    Tween girl reaching into freezer drawer in dark kitchen
    Small child feeding birds on New Zealand beach — Stock Photo
    Small child feeding birds on New Zealand beach
    Two friends smiling in city — Stock Photo
    Two friends smiling in city
    Students on a science lesson — Stock Photo
    Students on a science lesson
    Boys and girls, working in class — Stock Photo
    Boys and girls, working in class
    Mom and Toddler Son Watching Laptop Sit With Teenage Cousin at Table — Stock Photo
    Mom and Toddler Son Watching Laptop Sit With Teenage Cousin at Table
    Students and teachers smiling outdoors — Stock Photo
    Students and teachers smiling outdoors
    Student writing formula — Stock Photo
    Student writing formula
    Elementary school children writing in classroom — Stock Photo
    Elementary school children writing in classroom
    Three Smiling Siblings Sit on Brick Front Porch Steps — Stock Photo
    Three Smiling Siblings Sit on Brick Front Porch Steps
    Wide Shot of Mother & Daughter at Park in Chula Vista — Stock Photo
    Wide Shot of Mother & Daughter at Park in Chula Vista
    Girls and boys in Science Club — Stock Photo
    Girls and boys in Science Club
    Pensive, curious girl student examining molecular structure — Stock Photo
    Pensive, curious girl student examining molecular structure
    Side View of Smiling Teen With Braces Wearing Gaming Headset — Stock Photo
    Side View of Smiling Teen With Braces Wearing Gaming Headset
    Students in a computer class — Stock Photo
    Students in a computer class
    Front view close up of a middle aged Caucasian man helping his pre teen son to use abacus — Stock Photo
    Front view close up of a middle aged Caucasian man helping his pre teen son to use abacus
    Older Cousin Embraces Teen Cousin During Sunset in Front of Field — Stock Photo
    Older Cousin Embraces Teen Cousin During Sunset in Front of Field
    Chinese schoolgirl with backpack looking in camera — Stock Photo
    Chinese schoolgirl with backpack looking in camera
    Boy student holding and examining molecular structure — Stock Photo
    Boy student holding and examining molecular structure
    Elementary school children in classroom during lesson — Stock Photo
    Elementary school children in classroom during lesson
    Smiling female science teacher and girl student reading textbook at microscope in laboratory classroom — Stock Photo
    Smiling female science teacher and girl student reading textbook at microscope in laboratory classroom
    Father and son holding hands walking on rocks near ocean — Stock Photo
    Father and son holding hands walking on rocks near ocean
    Elementary school children in classroom during lesson — Stock Photo
    Elementary school children in classroom during lesson
    Boy student examining DNA model in laboratory classroom — Stock Photo
    Boy student examining DNA model in laboratory classroom
    Happy boy peeking through holes in climber at a playground. — Stock Photo
    Happy boy peeking through holes in climber at a playground.
    Male teacher and students watching chemical reaction, conducting scientific experiment in laboratory classroom — Stock Photo
    Male teacher and students watching chemical reaction, conducting scientific experiment in laboratory classroom
    Pre-adolescent boy working in computer laboratory with rows of computer monitors. — Stock Photo
    Pre-adolescent boy working in computer laboratory with rows of computer monitors.
    Girls and boys in Science Club — Stock Photo
    Girls and boys in Science Club
    Little kid in boots playing with sand in New Zealand — Stock Photo
    Little kid in boots playing with sand in New Zealand
    Male teacher and girl students conducting scientific experiment at microscope and laptop in laboratory classroom — Stock Photo
    Male teacher and girl students conducting scientific experiment at microscope and laptop in laboratory classroom
    Students using laptops in a lesson. — Stock Photo
    Students using laptops in a lesson.
    Portrait confident girl student researching at computer in library — Stock Photo
    Portrait confident girl student researching at computer in library
    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
    Students programming at computer in computer lab classroom — Stock Photo
    Students programming at computer in computer lab classroom