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    Close-up of teenage girl writing on blackboard in a classroom — Stock Photo
    Close-up of teenage girl writing on blackboard in a classroom
    Mixed race waitress writing on a notebook, with chefs cooking and cutting vegetables in the background. Cookery class at a restaurant kitchen. — Stock Photo
    Mixed race waitress writing on a notebook, with chefs cooking and cutting vegetables in the background. Cookery class at a restaurant kitchen.
    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.
    Portrait confident male high school teacher in classroom — Stock Photo
    Portrait confident male high school teacher in classroom
    From above of crop male dentistry student in uniform and gloves preparing dental simulator for treatment during work in modern classroom — Stock Photo
    From above of crop male dentistry student in uniform and gloves preparing dental simulator for treatment during work in modern classroom
    Young man looking at friend — Stock Photo
    Young man looking at friend
    Portrait of a mixed race teenage girl with long, dark hair and brown eyes standing in a school classroom smiling to camera, with classmates talking in the background — Stock Photo
    Portrait of a mixed race teenage girl with long, dark hair and brown eyes standing in a school classroom smiling to camera, with classmates talking in the background
    Side view of male student in casual clothes and eyeglasses with modern netbook in hand walking on street near modern building — Stock Photo
    Side view of male student in casual clothes and eyeglasses with modern netbook in hand walking on street near modern building
    Boy with schoolbag in classroom — Stock Photo
    Boy with schoolbag in classroom
    Pre-adolescent boys sitting in computer laboratory with rows of computer monitors. — Stock Photo
    Pre-adolescent boys sitting in computer laboratory with rows of computer monitors.
    Side view of a male Caucasian teacher standing and talking with a teenage African American female high school student working on a computer and concentrating in a classroom — Stock Photo
    Side view of a male Caucasian teacher standing and talking with a teenage African American female high school student working on a computer and concentrating in a classroom
    Community college instructor leading lesson in computer lab classroom — Stock Photo
    Community college instructor leading lesson in computer lab classroom
    Students sitting in classroom — Stock Photo
    Students sitting in classroom
    Formation of moons around gas giant planet. — Stock Photo
    Formation of moons around gas giant planet.
    Chinese siblings studying together at table — Stock Photo
    Chinese siblings studying together at table
    Portrait of a mixed race girl smiling while sitting on her desk at school. Primary education social distancing health safety during Covid19 Coronavirus pandemic. — Stock Photo
    Portrait of a mixed race girl smiling while sitting on her desk at school. Primary education social distancing health safety during Covid19 Coronavirus pandemic.
    Portrait happy junior high students and teachers in library — Stock Photo
    Portrait happy junior high students and teachers in library
    Boy lying on football ball and reading in the garden of a school — Stock Photo
    Boy lying on football ball and reading in the garden of a school
    Front view close up of a young African schoolgirl standing at the front of the class holding a book and writing on the blackboard during a lesson in a township elementary school classroom — Stock Photo
    Front view close up of a young African schoolgirl standing at the front of the class holding a book and writing on the blackboard during a lesson in a township elementary school classroom
    3d rendered illustration of human vascular system. — Stock Photo
    3d rendered illustration of human vascular system.
    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
    Illustration of sacrum in human skeleton. — Stock Photo
    Illustration of sacrum in human skeleton.
    Europe, Grece, Plain of Thessaly, Valley of Penee, World Heritage of UNESCO since 1988, Orthodox Christian monasteries of Meteora perched atop impressive gray rock masses sculpted by erosion, the Roussanou convent — Stock Photo
    Europe, Grece, Plain of Thessaly, Valley of Penee, World Heritage of UNESCO since 1988, Orthodox Christian monasteries of Meteora perched atop impressive gray rock masses sculpted by erosion, the Roussanou convent
    Male anatomy showing Peroneus longus muscle, computer illustration. — Stock Photo
    Male anatomy showing Peroneus longus muscle, computer illustration.
    Abstract female body with visible back bones, computer illustration. — Stock Photo
    Abstract female body with visible back bones, computer illustration.
    Teenage girl lying in bed and reading by window light. — Stock Photo
    Teenage girl lying in bed and reading by window light.
    Portrait male science teacher teaching DNA lesson at projection screen — Stock Photo
    Portrait male science teacher teaching DNA lesson at projection screen
    Portrait of a girl standing in a corn field, Poland — Stock Photo
    Portrait of a girl standing in a corn field, Poland
    Girl sitting with pencil — Stock Photo
    Girl sitting with pencil
    Chinese students talking in cafe with coffee — Stock Photo
    Chinese students talking in cafe with coffee
    Portrait of a senior Caucasian male chef, crossing his arms, looking at the camera and smiling with other chefs cooking in the background. Cookery class at a restaurant kitchen. — Stock Photo
    Portrait of a senior Caucasian male chef, crossing his arms, looking at the camera and smiling with other chefs cooking in the background. Cookery class at a restaurant kitchen.
    Caucasian woman spending time at home, sitting on bed in bedroom studying from home, using laptop computer. Social distancing during Covid 19 Coronavirus quarantine lockdown. — Stock Photo
    Caucasian woman spending time at home, sitting on bed in bedroom studying from home, using laptop computer. Social distancing during Covid 19 Coronavirus quarantine lockdown.
    Pensive African American female student with thermos and bunch of textbooks looking away while standing on street near university building — Stock Photo
    Pensive African American female student with thermos and bunch of textbooks looking away while standing on street near university building
    Bending male silhouette with knee pain, digital illustration. — Stock Photo
    Bending male silhouette with knee pain, digital illustration.
    Man writing notes and holding laptop — Stock Photo
    Man writing notes and holding laptop
    White Woman working from home — Stock Photo
    White Woman working from home
    Front view of a multi-ethnic group of teenage male and female choristers holding sheet music and singing standing on the stage of a school theatre during rehearsals for a performance — Stock Photo
    Front view of a multi-ethnic group of teenage male and female choristers holding sheet music and singing standing on the stage of a school theatre during rehearsals for a performance
    Smiling male teacher and students programming robotics at laptop in classroom — Stock Photo
    Smiling male teacher and students programming robotics at laptop in classroom
    Abstract male silhouette with colored sinuses bones, computer illustration. — Stock Photo
    Abstract male silhouette with colored sinuses bones, computer illustration.
    Audience on conference hall, business meeting and people concept — Stock Photo
    Audience on conference hall, business meeting and people concept
    Top view of seamless background of pencils chaotically scattered on pink surface — Stock Photo
    Top view of seamless background of pencils chaotically scattered on pink surface
    High angle close-up of wooden box with crayons in variety of vibrant colors. — Stock Photo
    High angle close-up of wooden box with crayons in variety of vibrant colors.
    Close up of pipettes in plastic stand on table in lab — Stock Photo
    Close up of pipettes in plastic stand on table in lab
    Kid using mobile phone with skate — Stock Photo
    Kid using mobile phone with skate
    Illustration of lumbar spine in human skeleton on blue background. — Stock Photo
    Illustration of lumbar spine in human skeleton on blue background.
    Audience watching speaker on stage — Stock Photo
    Audience watching speaker on stage
    Unrecognizable man sketching in notepad near cup of coffee and laptop while sitting at table an working on remote project in cafeteria — Stock Photo
    Unrecognizable man sketching in notepad near cup of coffee and laptop while sitting at table an working on remote project in cafeteria
    Young female teacher walking outdoor with rural chinese students — Stock Photo
    Young female teacher walking outdoor with rural chinese students
    Teenage girl wearing headphones, drawing on paper — Stock Photo
    Teenage girl wearing headphones, drawing on paper
    3d illustration of cross-section of human eye in side view and frontal view. — Stock Photo
    3d illustration of cross-section of human eye in side view and frontal view.
    Two Young Women Studying Together — Stock Photo
    Two Young Women Studying Together
    Happy high school student friends walking in corridor — Stock Photo
    Happy high school student friends walking in corridor
    Junior high school boy opening notebook at desk in classroom — Stock Photo
    Junior high school boy opening notebook at desk in classroom
    Happy teenage boy musician playing drums in sound booth — Stock Photo
    Happy teenage boy musician playing drums in sound booth
    LONDON, UNITED KINGDOM - OCTOBER 23 , 2018: Majestic skeleton of Blue Whale hanging from ceiling in Natural History Museum in London, England — Stock Photo
    LONDON, UNITED KINGDOM - OCTOBER 23 , 2018: Majestic skeleton of Blue Whale hanging from ceiling in Natural History Museum in London, England
    Friends looking at man using laptop — Stock Photo
    Friends looking at man using laptop
    Adult male musician in headphones playing bass guitar against netbook on sofa in living room — Stock Photo
    Adult male musician in headphones playing bass guitar against netbook on sofa in living room
    Male nervous system in body silhouette, computer illustration. — Stock Photo
    Male nervous system in body silhouette, computer illustration.
    Girl playing with geometric shapes. — Stock Photo
    Girl playing with geometric shapes.
    Side view of father and son playing with construction pieces in the dining room of the house — Stock Photo
    Side view of father and son playing with construction pieces in the dining room of the house