Preteen μαθήτρια δείχνει με στυλό στις μαθηματικές εξισώσεις στο chalkboard - Φωτογραφίες & Εικόνες Αρχείου

Preteen schoolgirl counting on fingers near chalkboard with mathematic equations

Thoughtful young girl in mathematics class standing sideways looking up at a blackboard covered in equations with her hand to her chin as she seeks an answer to a problem

Cropped view of man with chalk writing numbers on blackboard

Panoramic shot of man writing with chalk on blackboard

Upset african american schoolgirl looking at camera while holding book isolated on white, educational illustration

Panoramic shot of schoolchild holding chalk near chalkboard on green

Cropped view of african american teacher writing on chalkboard

Back view of african american schoolgirl writing on chalkboard while holding book