Χαμογελαστό αγόρι γραφής μαθηματικών παράδειγμα σε πίνακα με κιμωλία και βλέπουν τα φωτογραφικών μηχανών - Φωτογραφίες & Εικόνες Αρχείου

Schoolboy writing chemical formulas on chalkboard 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

Back to school concept. School child in class. Happy kid against green blackboard. Smart child in classroom. Idea and education concept

Gesture, childhood, school, education and people concept - smiling student boy in checkered shirt and jeans showing thumbs up over green school chalk board background

Childhood, education and people concept - happy smiling boy in green polo t-shirt pointing finger up over green school chalk board background

Schoolgirl with pink backpack writing on blackboard with chalk and looking at camera

Portrait of schoolchild holding wooden cubes with word math near blackboard

Schoolboy in checkered shirt raising hand up during lesson in classroom

Smiling schoolgirl writing on blackboard with chalk and looking at camera

Schoolgirl in yellow sweater writing on blackboard with chalk

Focused elementary school student studying mathematics on blackboard

Cropped shot of little schoolgirl drawing numbers on chalkboard

Back view of cute little schoolgirl drawing numbers on chalkboard