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    Portrait confident male electrician student — Stock Photo
    Portrait confident male electrician student
    Focused female fashion designer drawing sewing pattern in studio — Stock Photo
    Focused female fashion designer drawing sewing pattern in studio
    Audience using laptop, digital tablet and cell phone in audience at technology conference — Stock Photo
    Audience using laptop, digital tablet and cell phone in audience at technology conference
    Junior high school students with hands raised during lesson in classroom — Stock Photo
    Junior high school students with hands raised during lesson in classroom
    Crop unrecognizable student holding denture and a pencil while sitting at table during dentistry class — Stock Photo
    Crop unrecognizable student holding denture and a pencil while sitting at table during dentistry class
    Female teacher and multi-ethnic students in classroom — Stock Photo
    Female teacher and multi-ethnic students in classroom
    Black colleagues examining denture in laboratory — Stock Photo
    Black colleagues examining denture in laboratory
    Positive young female freelancer in casual clothes sitting with legs crossed on bed and typing on laptop while working on remote project at home — Stock Photo
    Positive young female freelancer in casual clothes sitting with legs crossed on bed and typing on laptop while working on remote project at home
    High school students with hands raised during lesson in classroom — Stock Photo
    High school students with hands raised during lesson in classroom
    Curious kids at interactive exhibit in science center — Stock Photo
    Curious kids at interactive exhibit in science center
    Teacher and student using laptop — Stock Photo
    Teacher and student using laptop
    Doctors undertaking automated external defibrillator training. — Stock Photo
    Doctors undertaking automated external defibrillator training.
    Junior high students using computers in computer lab — Stock Photo
    Junior high students using computers in computer lab
    Community college instructor helping mature student in classroom — Stock Photo
    Community college instructor helping mature student in classroom
    Smiling male teacher leading lesson in classroom — Stock Photo
    Smiling male teacher leading lesson in classroom
    Doctors practicing bag-valve-mask ventilation on training dummy. — Stock Photo
    Doctors practicing bag-valve-mask ventilation on training dummy.
    Young male scientist working in laboratory with glassware. — Stock Photo
    Young male scientist working in laboratory with glassware.
    Male students using equipment in shop class workshop — Stock Photo
    Male students using equipment in shop class workshop
    Community college instructor guiding adult students using computers in classroom — Stock Photo
    Community college instructor guiding adult students using computers in classroom
    Female high school teacher helping girl student with homework in classroom — Stock Photo
    Female high school teacher helping girl student with homework in classroom
    Community college instructor helping student using computer in classroom — Stock Photo
    Community college instructor helping student using computer in classroom
    Asian woman reading textbook while leaning on brick wall in university campus — Stock Photo
    Asian woman reading textbook while leaning on brick wall in university campus
    Portrait smiling girl student sitting in classroom during lesson — Stock Photo
    Portrait smiling girl student sitting in classroom during lesson
    Rear view of pupils sitting at their desks with hands raised during a lesson in a township elementary school classroom with their teacher standing writing on the blackboard in the background — Stock Photo
    Rear view of pupils sitting at their desks with hands raised during a lesson in a township elementary school classroom with their teacher standing writing on the blackboard in the background
    Junior high students using computers, listening to teacher in classroom — Stock Photo
    Junior high students using computers, listening to teacher in classroom
    Schoolboy looking at globe in classroom at school — Stock Photo
    Schoolboy looking at globe in classroom at school
    Rear view of a Caucasian male high school teacher sitting on a chair on the stage in an empty school theatre and pointing during rehearsals for a performance, preparing a multi-ethnic group of teenage high school students for a performance — Stock Photo
    Rear view of a Caucasian male high school teacher sitting on a chair on the stage in an empty school theatre and pointing during rehearsals for a performance, preparing a multi-ethnic group of teenage high school students for a performance
    Male community college instructor leading lesson in classroom — Stock Photo
    Male community college instructor leading lesson in classroom
    Female teacher in hijab leading lesson, calling on students in classroom — Stock Photo
    Female teacher in hijab leading lesson, calling on students in classroom
    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 artists painting wood in art class workshop — Stock Photo
    Female artists painting wood in art class workshop
    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
    Portrait smiling instructor leading active senior exercise class — Stock Photo
    Portrait smiling instructor leading active senior exercise class
    Concentrated man with backpack studying at laptop and writing on a notepad sitting in park grass with crossed legs in sunny day — Stock Photo
    Concentrated man with backpack studying at laptop and writing on a notepad sitting in park grass with crossed legs in sunny day
    Female artist looking at screen print in studio — Stock Photo
    Female artist looking at screen print in studio
    Male high school teacher leading lesson at projection screen in classroom — Stock Photo
    Male high school teacher leading lesson at projection screen in classroom
    Black colleagues examining denture in laboratory — Stock Photo
    Black colleagues examining denture in laboratory
    Female fashion designers working in studio — Stock Photo
    Female fashion designers working in studio
    Tired man using laptop computer lying on bed at home — Stock Photo
    Tired man using laptop computer lying on bed at home
    Male teacher teaching students in the class at school — Stock Photo
    Male teacher teaching students in the class at school
    Colorful office supplies on yellow background — Stock Photo
    Colorful office supplies on yellow background
    Portrait of confident teachers standing outside school building steps — Stock Photo
    Portrait of confident teachers standing outside school building steps
    High school students clapping for teacher in debate class — Stock Photo
    High school students clapping for teacher in debate class
    Side view of crop male doctor in blue uniform and gloves writing on flip chart while explaining theory during lesson in dentistry course — Stock Photo
    Side view of crop male doctor in blue uniform and gloves writing on flip chart while explaining theory during lesson in dentistry course
    Female teacher and students conducting chemical experiment — Stock Photo
    Female teacher and students conducting chemical experiment
    High school teacher supervising students taking exam in classroom — Stock Photo
    High school teacher supervising students taking exam in classroom
    Teacher and students using touch screen computers — Stock Photo
    Teacher and students using touch screen computers
    Male teacher teaching students in the classroom at school — Stock Photo
    Male teacher teaching students in the classroom at school
    From above crop male student hands holding denture and paste while sitting at table during dentistry class — Stock Photo
    From above crop male student hands holding denture and paste while sitting at table during dentistry class
    Male high school teacher helping boy student with homework in classroom — Stock Photo
    Male high school teacher helping boy student with homework in classroom
    Man working in a tent with a view to social distance from the office — Stock Photo
    Man working in a tent with a view to social distance from the office
    Active seniors and instructor dancing in dance class — Stock Photo
    Active seniors and instructor dancing in dance class
    Teacher and schoolboy stacking bricks at interactive construction exhibit in science center — Stock Photo
    Teacher and schoolboy stacking bricks at interactive construction exhibit in science center
    Female scientist and students examining molecule models in lab — Stock Photo
    Female scientist and students examining molecule models in lab
    Teacher leading lesson at projection screen in classroom — Stock Photo
    Teacher leading lesson at projection screen in classroom
    Top view composition with yellow notebook and pens placed near blank sticky notes and paper clips on yellow background — Stock Photo
    Top view composition with yellow notebook and pens placed near blank sticky notes and paper clips on yellow background
    Professor assisting students — Stock Photo
    Professor assisting students
    From above view of anonymous female freelancer taking notes with pen in notebook while listening music in earphones on smartphone and sitting at desk with gadgets at home — Stock Photo
    From above view of anonymous female freelancer taking notes with pen in notebook while listening music in earphones on smartphone and sitting at desk with gadgets at home
    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
    From above crop male student hands holding denture and paste while sitting at table during dentistry class — Stock Photo
    From above crop male student hands holding denture and paste while sitting at table during dentistry class