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    Attentive university student doing a chemical experiment in laboratory — Stock Photo
    Attentive university student doing a chemical experiment in laboratory
    Female photography instructor helping student at computer in classroom — Stock Photo
    Female photography instructor helping student at computer in classroom
    Portrait of teenage girl holding clipboard while standing in lab — Stock Photo
    Portrait of teenage girl holding clipboard while standing in lab
    Mother and daughter gardening in sunny yard — Stock Photo
    Mother and daughter gardening in sunny yard
    Family fishing together in tall grass — Stock Photo
    Family fishing together in tall grass
    Business executives participating in a business meeting using digital tablet at conference center — Stock Photo
    Business executives participating in a business meeting using digital tablet at conference center
    College students taking test at desks in classroom — Stock Photo
    College students taking test at desks in classroom
    Artificial intelligence. Interconnected knowledge representation Ai. — Stock Photo
    Artificial intelligence. Interconnected knowledge representation Ai.
    A girl showing her favorite hand book — Stock Photo
    A girl showing her favorite hand book
    Male junior high teacher leading lesson at projection screen in classroom — Stock Photo
    Male junior high teacher leading lesson at projection screen in classroom
    Male instructor leading dance class in studio — Stock Photo
    Male instructor leading dance class in studio
    Young couple studying at cafe window — Stock Photo
    Young couple studying at cafe window
    Children playing with coins — Stock Photo
    Children playing with coins
    Hands of female paramedic CPR training outdoors. — Stock Photo
    Hands of female paramedic CPR training outdoors.
    Relaxed barefoot woman in casual clothes playing acoustic guitar while sitting on chair next to window at home — Stock Photo
    Relaxed barefoot woman in casual clothes playing acoustic guitar while sitting on chair next to window at home
    Man with Williams Syndrome working on a computer — Stock Photo
    Man with Williams Syndrome working on a computer
    Man with Traumatic Brain Injury with cane enjoying his friend — Stock Photo
    Man with Traumatic Brain Injury with cane enjoying his friend
    Young adult friends talking at sidewalk cafe — Stock Photo
    Young adult friends talking at sidewalk cafe
    A girl trimming the hand craft book — Stock Photo
    A girl trimming the hand craft book
    A father teaches his son to play chess. — Stock Photo
    A father teaches his son to play chess.
    Junior high girl student using computer in computer lab — Stock Photo
    Junior high girl student using computer in computer lab
    Teenage boy experimenting on microscope in laboratory at university — Stock Photo
    Teenage boy experimenting on microscope in laboratory at university
    Portrait of a girl lying on her bed doing her homework — Stock Photo
    Portrait of a girl lying on her bed doing her homework
    Closeup view of stack of books on vintage suitcase — Stock Photo
    Closeup view of stack of books on vintage suitcase
    Chinese young adults sitting on lawn in autumnal park — Stock Photo
    Chinese young adults sitting on lawn in autumnal park
    Close-up of children reaching out to pet a small box turtle on a rock — Stock Photo
    Close-up of children reaching out to pet a small box turtle on a rock
    Desks and chairs in empty classroom interior — Stock Photo
    Desks and chairs in empty classroom interior
    CPR class with instructors demonstrating first aid, compression and reanimation procedure. — Stock Photo
    CPR class with instructors demonstrating first aid, compression and reanimation procedure.
    Girl walking in the snow wearing snowshoes — Stock Photo
    Girl walking in the snow wearing snowshoes
    Side view close up of a young African schoolboy sitting at a desk looking up while writing in his note book and listening attentively during a lesson in a township elementary school classroom — Stock Photo
    Side view close up of a young African schoolboy sitting at a desk looking up while writing in his note book and listening attentively during a lesson in a township elementary school classroom
    Audience watching speaker on stage — Stock Photo
    Audience watching speaker on stage
    Group of multi ethnic kids wearing face masks performing yoga in the school garden. Primary education social distancing health safety during Covid19 Coronavirus pandemic. — Stock Photo
    Group of multi ethnic kids wearing face masks performing yoga in the school garden. Primary education social distancing health safety during Covid19 Coronavirus pandemic.
    Female student playing violin in a studio — Stock Photo
    Female student playing violin in a studio
    Chinese rural primary school students using laptop computer in classroom — Stock Photo
    Chinese rural primary school students using laptop computer in classroom
    Senior friends making pizza in cooking class — Stock Photo
    Senior friends making pizza in cooking class
    Portrait happy young woman with Down Syndrome working kitchen — Stock Photo
    Portrait happy young woman with Down Syndrome working kitchen
    Instructor with manual resuscitator teaching CPR class — Stock Photo
    Instructor with manual resuscitator teaching CPR class
    Two children playing with coins — Stock Photo
    Two children playing with coins
    Young college student with books walking in library — Stock Photo
    Young college student with books walking in library
    Portrait of little boy brushing teeth — Stock Photo
    Portrait of little boy brushing teeth
    Caucasian male doctor wearing face mask showing how to use hand sanitizer to students at school. health protection and safety at school during covid-19 pandemic concept — Stock Photo
    Caucasian male doctor wearing face mask showing how to use hand sanitizer to students at school. health protection and safety at school during covid-19 pandemic concept
    Man with Traumatic Brain Injury relaxing with his cane near the city street — Stock Photo
    Man with Traumatic Brain Injury relaxing with his cane near the city street
    Teacher and Young Students — Stock Photo
    Teacher and Young Students
    Female artists sketching at easel in art class studio — Stock Photo
    Female artists sketching at easel in art class studio
    Students examining liquids in test tube rack, conducting scientific experiment in laboratory classroom — Stock Photo
    Students examining liquids in test tube rack, conducting scientific experiment in laboratory classroom
    Elementary age boy lying on grass and playing handheld electronic game. — Stock Photo
    Elementary age boy lying on grass and playing handheld electronic game.
    Boy in swim class with female instructor in swimming pool. — Stock Photo
    Boy in swim class with female instructor in swimming pool.
    Female student playing violin in a studio — Stock Photo
    Female student playing violin in a studio
    Senior friends making pizzas in cooking class — Stock Photo
    Senior friends making pizzas in cooking class
    Close-up of preteen boy with serious expression playing cello at home — Stock Photo
    Close-up of preteen boy with serious expression playing cello at home
    School girl writing in her notebook — Stock Photo
    School girl writing in her notebook
    Teenage boy holding mobile phone while using laptop in canteen — Stock Photo
    Teenage boy holding mobile phone while using laptop in canteen
    University students studying together — Stock Photo
    University students studying together
    Infant legs on carpet with lined pattern — Stock Photo
    Infant legs on carpet with lined pattern
    Portrait of Caucasian male and female conservation volunteers cleaning up forest in countryside, with boards Our Future Thank You Our Earth. Ecology and social responsibility in rural environment. — Stock Photo
    Portrait of Caucasian male and female conservation volunteers cleaning up forest in countryside, with boards Our Future Thank You Our Earth. Ecology and social responsibility in rural environment.
    Student friends studying outdoors — Stock Photo
    Student friends studying outdoors
    Little girls practicing in water of swimming pool. — Stock Photo
    Little girls practicing in water of swimming pool.
    Student painting in classroom indoors — Stock Photo
    Student painting in classroom indoors
    Junior high students hanging out at stairs — Stock Photo
    Junior high students hanging out at stairs
    Focused high school boy student taking exam at desk in classroom — Stock Photo
    Focused high school boy student taking exam at desk in classroom