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    Middle Schooler boy applying grip tape to his skateboard. — Stock Photo
    Middle Schooler boy applying grip tape to his skateboard.
    Junior high school boys using digital tablet in classroom — Stock Photo
    Junior high school boys using digital tablet in classroom
    Junior high students hanging out — Stock Photo
    Junior high students hanging out
    Portrait enthusiastic junior high students and teachers cheering with arms raised — Stock Photo
    Portrait enthusiastic junior high students and teachers cheering with arms raised
    Older sister hugging young brother by a cactus garden — Stock Photo
    Older sister hugging young brother by a cactus garden
    Female teacher and students conducting scientific experiment in laboratory classroom — Stock Photo
    Female teacher and students conducting scientific experiment in laboratory classroom
    Boy skim boarding at the beach at sunset in Martha's Vineyard — Stock Photo
    Boy skim boarding at the beach at sunset in Martha's Vineyard
    Schoolgirl raising hand — Stock Photo
    Schoolgirl raising hand
    Focused junior high school girl student doing homework in classroom — Stock Photo
    Focused junior high school girl student doing homework in classroom
    Male teacher leading lesson at touch screen in classroom — Stock Photo
    Male teacher leading lesson at touch screen in classroom
    Teacher leading lesson, calling on students in classroom — Stock Photo
    Teacher leading lesson, calling on students in classroom
    Junior high schoolgirl making bar graph — Stock Photo
    Junior high schoolgirl making bar graph
    Male teacher and boy student conducting scientific experiment in laboratory classroom — Stock Photo
    Male teacher and boy student conducting scientific experiment in laboratory classroom
    Surprised students conducting scientific experiment, watching chemical reaction in classroom laboratory — Stock Photo
    Surprised students conducting scientific experiment, watching chemical reaction in classroom laboratory
    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
    Junior high students talking — Stock Photo
    Junior high students talking
    Girl students conducting scientific experiment behind test tubes and bottles in laboratory classroom — Stock Photo
    Girl students conducting scientific experiment behind test tubes and bottles in laboratory classroom
    Surprised students conducting exploding foam scientific experiment in classroom laboratory — Stock Photo
    Surprised students conducting exploding foam scientific experiment in classroom laboratory
    Curious, smiling students watching chemical reaction, conducting scientific experiment in laboratory classroom — Stock Photo
    Curious, smiling students watching chemical reaction, conducting scientific experiment in laboratory classroom
    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
    Students moving down steps — Stock Photo
    Students moving down steps
    Male teacher and girl students conducting scientific experiment at microscope in laboratory classroom — Stock Photo
    Male teacher and girl students conducting scientific experiment at microscope in laboratory classroom
    Mixed race girl walking on a cactus trail with her long hair flying. — Stock Photo
    Mixed race girl walking on a cactus trail with her long hair flying.
    Pensive, curious girl student examining molecular structure — Stock Photo
    Pensive, curious girl student examining molecular structure
    Students examining liquid in test tube, conducting scientific experiment in laboratory classroom — Stock Photo
    Students examining liquid in test tube, conducting scientific experiment in laboratory classroom
    Focused boy student using microscope in classroom — Stock Photo
    Focused boy student using microscope in classroom
    Girl students conducting chemistry experiment in classroom laboratory — Stock Photo
    Girl students conducting chemistry experiment in classroom laboratory
    Junior high school students with hands raised during lesson in classroom — Stock Photo
    Junior high school students with hands raised during lesson in classroom
    Junior high school students in classroom — Stock Photo
    Junior high school students in classroom
    Junior high girl students walking in corridor — Stock Photo
    Junior high girl students walking in corridor
    Smiling junior high school students listening in classroom lesson — Stock Photo
    Smiling junior high school students listening in classroom lesson
    Male teacher leading lesson in classroom — Stock Photo
    Male teacher leading lesson in classroom
    Asian mother hugging pre-teen daughter and making her laugh. — Stock Photo
    Asian mother hugging pre-teen daughter and making her laugh.
    Male teacher and boy student using microscope, conducting scientific experiment in laboratory classroom — Stock Photo
    Male teacher and boy student using microscope, conducting scientific experiment in laboratory classroom
    Female junior high teacher helping girl student at computer in computer lab — Stock Photo
    Female junior high teacher helping girl student at computer in computer lab
    Male teacher leading lesson at touch screen television in classroom — Stock Photo
    Male teacher leading lesson at touch screen television in classroom
    Happy, laughing junior high school students in classroom — Stock Photo
    Happy, laughing junior high school students in classroom
    Portrait of happy school students — Stock Photo
    Portrait of happy school students
    Junior high school students with backpacks in classroom — Stock Photo
    Junior high school students with backpacks in classroom
    Junior high school students talking in classroom — Stock Photo
    Junior high school students talking in classroom
    Portrait of confident schoolgirl — Stock Photo
    Portrait of confident schoolgirl
    Girl students conducting scientific experiment in chemistry laboratory classroom — Stock Photo
    Girl students conducting scientific experiment in chemistry laboratory classroom
    Junior high students talking at stairs — Stock Photo
    Junior high students talking at stairs
    Portrait of confident elementary age boy doing homework in classroom — Stock Photo
    Portrait of confident elementary age boy doing homework in classroom
    Junior high students discussing — Stock Photo
    Junior high students discussing
    Asian mother kissing pre-teen daughter on the cheek. — Stock Photo
    Asian mother kissing pre-teen daughter on the cheek.
    Junior high students talking on stairs — Stock Photo
    Junior high students talking on stairs
    Female teacher and junior high school girl students at desk in classroom — Stock Photo
    Female teacher and junior high school girl students at desk in classroom
    Thoughtful schoolgirl smiling — Stock Photo
    Thoughtful schoolgirl smiling
    Portrait confident junior high girl student studying in corridor — Stock Photo
    Portrait confident junior high girl student studying in corridor
    Junior high students working at computers in computer lab — Stock Photo
    Junior high students working at computers in computer lab
    Female teacher in hijab leading lesson, calling on students in classroom — Stock Photo
    Female teacher in hijab leading lesson, calling on students in classroom
    Portrait smiling, confident female teacher wearing hijab in classroom — Stock Photo
    Portrait smiling, confident female teacher wearing hijab in classroom
    Junior high students using computers in computer lab — Stock Photo
    Junior high students using computers in computer lab
    Portrait of enthusiastic junior high students and teachers cheering — Stock Photo
    Portrait of enthusiastic junior high students and teachers cheering
    Curious students examining liquid in beaker, conducting scientific experiment in laboratory classroom — Stock Photo
    Curious students examining liquid in beaker, conducting scientific experiment in laboratory classroom
    Female teacher and girl students examining molecular structure in classroom — Stock Photo
    Female teacher and girl students examining molecular structure in classroom
    Students watching chemical reaction, conducting scientific experiment in laboratory classroom — Stock Photo
    Students watching chemical reaction, conducting scientific experiment in laboratory classroom
    Female teacher in hijab teaching lesson at projection screen in classroom — Stock Photo
    Female teacher in hijab teaching lesson at projection screen in classroom
    Boy students conducting scientific experiment, examining liquid in test tube in laboratory classroom — Stock Photo
    Boy students conducting scientific experiment, examining liquid in test tube in laboratory classroom