Két fiú mélyen koncentrál, egy élénk osztályteremben ülnek egy asztalnál, ahogy a tanáruk tanítja a diákokat.. - Stock fotó és kép

Banner, happy redhead boy holding smartphone and looking at girl, blurred foreground, teen students

Horizontal concept of schoolboy looking at camera with multiethnic classmates at background

Male teacher conducting lesson in classroom

Elementary School Classroom: Enthusiastic Teacher Holding Tablet Computer Explains Lesson to Brilliant Young Children. Kids Learning Programming Languages, Internet Safety and Information Technology

Smiling teenage schoolgirl looking at camera near blurred classmates during lesson in class, banner

Banner, happy redhead boy holding smartphone and looking at girl, blurred foreground, teen students

Smiling teenage schoolgirl looking at camera near blurred classmates during lesson in class, banner

Cheerful schoolboy holding digital tablet near classmates during lesson, banner

Schoolgirl using cellphone near blurred classmates in classroom

Multiethnic schoolboys looking at digital tablet near classmates