Mladý chlapec stojí sebevědomě před tabulí a učí se v živé učebně.. - Stock fotografie a obrázky

A little boy in glasses writes with chalk on the blackboard and looks at the teacher in the background of the classroom. Back to school, education.

Portrait of smiling boy sitting at table in classroom

Education, elementary school, learning, math and people concept - little smiling schoolboy writing numbers on green chalk board in classroom

Portrait of smiling boy with hand up sitting at table in classroom

First grade schoolboy wrote on blackboard with chalk - arithmetic digits One Plus Two, and looking at the camera. Boy dressed in a white shirt and wearing glasses. Concept of knowledge day

Standing near blackboard. Dark-haired clever boy standing near blackboard with answer sheet

Happy kid laughing while holding books near chalkboard with mathematical formulas

Selective focus of happy boy looking at camera near blurred african american teacher writing on whiteboard

Happy schoolkid smiling at camera near asian boy writing on blurred background

Cheerful kid in glasses holding digital tablet with blank screen near chalkboard with mathematical formulas

Happy child holding book near chalkboard with mathematical formulas

Partial view of teacher with book near schoolgirl sitting at desk and writing in copy book

Serious asian schoolgirl holding pen while looking away in classroom

Asian schoolboy holding smartphone and writing on notebook in classroom

Asian boy writing in notebook near blurred classmates

Surprised kid in glasses gesturing while holding chalk near chalkboard with mathematical formulas