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Happy mature female teacher educator helping African American junior school kid girl student using digital tablet computer education program app technology during elementary class lesson in classroom.
blue eye pupil iris isolated
First grade pupil a girl writing on green blackboard at school lesson
Group of college students performing experiment using microscope in science lab. University focused student looking through microscope in biology class. High school girl examine samples during lecture
Rear view of multiethnic elementary middle school kids pupils classmates friends with backpack in casual clothes are hugging embracing each other standing outdoors.

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